7am/main.go

package main

import (
	"context"
	"database/sql"
	"embed"
	_ "embed"
	"encoding/json"
	"errors"
	"flag"
	"fmt"
	"github.com/SherClockHolmes/webpush-go"
	"github.com/go-co-op/gocron/v2"
	"github.com/google/uuid"
	"github.com/joho/godotenv"
	"google.golang.org/genai"
	"html/template"
	"io"
	"log"
	"log/slog"
	"mime"
	_ "modernc.org/sqlite"
	"net/http"
	"os"
	"path/filepath"
	"slices"
	"strings"
	"sync"
	"time"
)

type location struct {
	tz          *time.Location
	lat         float32
	lon         float32
	ianaName    string
	displayName string
}

// pageTemplate stores all pre-compiled HTML templates for the application
type pageTemplate struct {
	summary *template.Template
}

// summaryTemplateData stores template data for summary.html
type summaryTemplateData struct {
	Summary      string
	Location     string
	LocationName string
}

// updateSubscription is the request body for creating/updating registration
type updateSubscription struct {
	Subscription    webpush.Subscription `json:"subscription"`
	Locations       []string             `json:"locations"`
	RemoveLocations []string             `json:"removeLocations"`
}

// registeredSubscription represents a registered webpush subscription.
type registeredSubscription struct {
	ID           uuid.UUID             `json:"id"`
	Subscription *webpush.Subscription `json:"-"`
	Locations    []string              `json:"locations"`
}

type webpushNotificationPayload struct {
	Summary  string `json:"summary"`
	Location string `json:"location"`
}

type state struct {
	ctx             context.Context
	db              *sql.DB
	metAPIUserAgent string
	genai           *genai.Client
	template        pageTemplate

	usePlaceholder bool

	// summaries maps location keys to their latest weather summary
	summaries sync.Map
	// summaryChans stores a map of location key to the corresponding summary channel
	// which is used to track summary updates
	summaryChans map[string]chan string

	// subscriptions maps location keys to the list of registered subscriptions
	// that are subscribed to updates for the location
	subscriptions map[string][]*registeredSubscription
	// subscriptionsMutex syncs writes to subscriptions
	subscriptionsMutex sync.Mutex

	vapidSubject string
	// vapidPublicKey is the base64 url encoded VAPID public key
	vapidPublicKey string
	// vapidPrivateKey is the base64 url encoded VAPID private key
	vapidPrivateKey string
}

//go:embed web
var webDir embed.FS

var envKeys = []string{"GEMINI_API_KEY", "MET_API_USER_AGENT", "VAPID_SUBJECT", "VAPID_PRIVATE_KEY_BASE64", "VAPID_PUBLIC_KEY_BASE64"}

var prompt = `The current date and time is %v 7:00am. Provide a short summary of the weather forecast only for today in JSON in %v below.
Keep it concise. Suggest how to deal with the weather, such as how to dress for the weather, and whether they need an umbrella, but err on the side of caution.
Use celsius and fahrenheit but not Kelvin for temperature.
Mention %v in the summary, but don't add anything else, as the summary will be displayed on a website.
Do not mention today's date or time in the summary.
The summary should be in plaintext for humans. Do not output in JSON.`

var placeholderWeather = map[string]string{
	"london": "{\"Headline\":{\"EffectiveDate\":\"2025-05-11T08:00:00+01:00\",\"EffectiveEpochDate\":1746946800,\"Severity\":4,\"Text\":\"Pleasant Sunday\",\"Category\":\"mild\",\"EndDate\":null,\"EndEpochDate\":null,\"MobileLink\":\"http://www.accuweather.com/en/gb/london/ec4a-2/daily-weather-forecast/328328?lang=en-us\",\"Link\":\"http://www.accuweather.com/en/gb/london/ec4a-2/daily-weather-forecast/328328?lang=en-us\"},\"DailyForecasts\":[{\"Date\":\"2025-05-10T07:00:00+01:00\",\"EpochDate\":1746856800,\"Sun\":{\"Rise\":\"2025-05-10T05:17:00+01:00\",\"EpochRise\":1746850620,\"Set\":\"2025-05-10T20:38:00+01:00\",\"EpochSet\":1746905880},\"Moon\":{\"Rise\":\"2025-05-10T18:40:00+01:00\",\"EpochRise\":1746898800,\"Set\":\"2025-05-11T04:21:00+01:00\",\"EpochSet\":1746933660,\"Phase\":\"WaxingGibbous\",\"Age\":13},\"Temperature\":{\"Minimum\":{\"Value\":50,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":69,\"Unit\":\"F\",\"UnitType\":18}},\"RealFeelTemperature\":{\"Minimum\":{\"Value\":49,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Chilly\"},\"Maximum\":{\"Value\":70,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Pleasant\"}},\"RealFeelTemperatureShade\":{\"Minimum\":{\"Value\":49,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Chilly\"},\"Maximum\":{\"Value\":66,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Pleasant\"}},\"HoursOfSun\":12.8,\"DegreeDaySummary\":{\"Heating\":{\"Value\":5,\"Unit\":\"F\",\"UnitType\":18},\"Cooling\":{\"Value\":0,\"Unit\":\"F\",\"UnitType\":18}},\"AirAndPollen\":[{\"Name\":\"AirQuality\",\"Value\":0,\"Category\":\"Good\",\"CategoryValue\":1,\"Type\":\"Ozone\"},{\"Name\":\"Grass\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Mold\",\"Value\":32767,\"Category\":\"High\",\"CategoryValue\":3},{\"Name\":\"Ragweed\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Tree\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"UVIndex\",\"Value\":7,\"Category\":\"High\",\"CategoryValue\":3}],\"Day\":{\"Icon\":1,\"IconPhrase\":\"Sunny\",\"HasPrecipitation\":false,\"ShortPhrase\":\"Sunshine, breezy and pleasant\",\"LongPhrase\":\"Breezy and pleasant with sunshine\",\"PrecipitationProbability\":1,\"ThunderstormProbability\":0,\"RainProbability\":1,\"SnowProbability\":0,\"IceProbability\":0,\"Wind\":{\"Speed\":{\"Value\":13.8,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":97,\"Localized\":\"E\",\"English\":\"E\"}},\"WindGust\":{\"Speed\":{\"Value\":32.2,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":88,\"Localized\":\"E\",\"English\":\"E\"}},\"TotalLiquid\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Rain\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Snow\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Ice\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"HoursOfPrecipitation\":0,\"HoursOfRain\":0,\"HoursOfSnow\":0,\"HoursOfIce\":0,\"CloudCover\":6,\"Evapotranspiration\":{\"Value\":0.18,\"Unit\":\"in\",\"UnitType\":1},\"SolarIrradiance\":{\"Value\":7999.7,\"Unit\":\"W/m²\",\"UnitType\":33},\"RelativeHumidity\":{\"Minimum\":27,\"Maximum\":71,\"Average\":39},\"WetBulbTemperature\":{\"Minimum\":{\"Value\":46,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":53,\"Unit\":\"F\",\"UnitType\":18},\"Average\":{\"Value\":49,\"Unit\":\"F\",\"UnitType\":18}},\"WetBulbGlobeTemperature\":{\"Minimum\":{\"Value\":50,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":61,\"Unit\":\"F\",\"UnitType\":18},\"Average\":{\"Value\":57,\"Unit\":\"F\",\"UnitType\":18}}},\"Night\":{\"Icon\":38,\"IconPhrase\":\"Mostly cloudy\",\"HasPrecipitation\":false,\"ShortPhrase\":\"Increasing cloudiness\",\"LongPhrase\":\"Increasing cloudiness\",\"PrecipitationProbability\":1,\"ThunderstormProbability\":0,\"RainProbability\":1,\"SnowProbability\":0,\"IceProbability\":0,\"Wind\":{\"Speed\":{\"Value\":6.9,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":69,\"Localized\":\"ENE\",\"English\":\"ENE\"}},\"WindGust\":{\"Speed\":{\"Value\":20.7,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":106,\"Localized\":\"ESE\",\"English\":\"ESE\"}},\"
	"sf":     "{\"Headline\":{\"EffectiveDate\":\"2025-05-10T08:00:00-07:00\",\"EffectiveEpochDate\":1746889200,\"Severity\":4,\"Text\":\"Pleasant today\",\"Category\":\"mild\",\"EndDate\":null,\"EndEpochDate\":null,\"MobileLink\":\"http://www.accuweather.com/en/us/san-francisco-ca/94103/daily-weather-forecast/347629?lang=en-us\",\"Link\":\"http://www.accuweather.com/en/us/san-francisco-ca/94103/daily-weather-forecast/347629?lang=en-us\"},\"DailyForecasts\":[{\"Date\":\"2025-05-10T07:00:00-07:00\",\"EpochDate\":1746885600,\"Sun\":{\"Rise\":\"2025-05-10T06:04:00-07:00\",\"EpochRise\":1746882240,\"Set\":\"2025-05-10T20:08:00-07:00\",\"EpochSet\":1746932880},\"Moon\":{\"Rise\":\"2025-05-10T18:41:00-07:00\",\"EpochRise\":1746927660,\"Set\":\"2025-05-11T05:13:00-07:00\",\"EpochSet\":1746965580,\"Phase\":\"WaxingGibbous\",\"Age\":13},\"Temperature\":{\"Minimum\":{\"Value\":53,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":71,\"Unit\":\"F\",\"UnitType\":18}},\"RealFeelTemperature\":{\"Minimum\":{\"Value\":48,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Chilly\"},\"Maximum\":{\"Value\":73,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Pleasant\"}},\"RealFeelTemperatureShade\":{\"Minimum\":{\"Value\":48,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Chilly\"},\"Maximum\":{\"Value\":67,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Pleasant\"}},\"HoursOfSun\":10.2,\"DegreeDaySummary\":{\"Heating\":{\"Value\":3,\"Unit\":\"F\",\"UnitType\":18},\"Cooling\":{\"Value\":0,\"Unit\":\"F\",\"UnitType\":18}},\"AirAndPollen\":[{\"Name\":\"AirQuality\",\"Value\":49,\"Category\":\"Good\",\"CategoryValue\":1,\"Type\":\"Particle Pollution\"},{\"Name\":\"Grass\",\"Value\":12,\"Category\":\"Moderate\",\"CategoryValue\":2},{\"Name\":\"Mold\",\"Value\":3250,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Ragweed\",\"Value\":5,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Tree\",\"Value\":7,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"UVIndex\",\"Value\":10,\"Category\":\"Very High\",\"CategoryValue\":4}],\"Day\":{\"Icon\":2,\"IconPhrase\":\"Mostly sunny\",\"HasPrecipitation\":false,\"ShortPhrase\":\"Sunshine and pleasant\",\"LongPhrase\":\"Sunny to partly cloudy and pleasant\",\"PrecipitationProbability\":1,\"ThunderstormProbability\":0,\"RainProbability\":1,\"SnowProbability\":0,\"IceProbability\":0,\"Wind\":{\"Speed\":{\"Value\":11.5,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":254,\"Localized\":\"WSW\",\"English\":\"WSW\"}},\"WindGust\":{\"Speed\":{\"Value\":29.9,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":257,\"Localized\":\"WSW\",\"English\":\"WSW\"}},\"TotalLiquid\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Rain\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Snow\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Ice\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"HoursOfPrecipitation\":0,\"HoursOfRain\":0,\"HoursOfSnow\":0,\"HoursOfIce\":0,\"CloudCover\":28,\"Evapotranspiration\":{\"Value\":0.15,\"Unit\":\"in\",\"UnitType\":1},\"SolarIrradiance\":{\"Value\":8489.7,\"Unit\":\"W/m²\",\"UnitType\":33},\"RelativeHumidity\":{\"Minimum\":51,\"Maximum\":91,\"Average\":65},\"WetBulbTemperature\":{\"Minimum\":{\"Value\":53,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":61,\"Unit\":\"F\",\"UnitType\":18},\"Average\":{\"Value\":57,\"Unit\":\"F\",\"UnitType\":18}},\"WetBulbGlobeTemperature\":{\"Minimum\":{\"Value\":56,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":66,\"Unit\":\"F\",\"UnitType\":18},\"Average\":{\"Value\":62,\"Unit\":\"F\",\"UnitType\":18}}},\"Night\":{\"Icon\":35,\"IconPhrase\":\"Partly cloudy\",\"HasPrecipitation\":false,\"ShortPhrase\":\"Partly cloudy\",\"LongPhrase\":\"Partly cloudy\",\"PrecipitationProbability\":0,\"ThunderstormProbability\":0,\"RainProbability\":0,\"SnowProbability\":0,\"IceProbability\":0,\"Wind\":{\"Speed\":{\"Value\":11.5,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":268,\"Localized\":\"W\",\"English\":\"W\"}},\"WindGust\":{\"Speed\":{\"Value\":19.6,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":264,\"Localized
	"sj":     "{\"Headline\":{\"EffectiveDate\":\"2025-05-11T08:00:00-07:00\",\"EffectiveEpochDate\":1746975600,\"Severity\":4,\"Text\":\"Pleasant tomorrow\",\"Category\":\"mild\",\"EndDate\":null,\"EndEpochDate\":null,\"MobileLink\":\"http://www.accuweather.com/en/us/san-jose-ca/95110/daily-weather-forecast/347630?lang=en-us\",\"Link\":\"http://www.accuweather.com/en/us/san-jose-ca/95110/daily-weather-forecast/347630?lang=en-us\"},\"DailyForecasts\":[{\"Date\":\"2025-05-10T07:00:00-07:00\",\"EpochDate\":1746885600,\"Sun\":{\"Rise\":\"2025-05-10T06:03:00-07:00\",\"EpochRise\":1746882180,\"Set\":\"2025-05-10T20:05:00-07:00\",\"EpochSet\":1746932700},\"Moon\":{\"Rise\":\"2025-05-10T18:38:00-07:00\",\"EpochRise\":1746927480,\"Set\":\"2025-05-11T05:11:00-07:00\",\"EpochSet\":1746965460,\"Phase\":\"WaxingGibbous\",\"Age\":13},\"Temperature\":{\"Minimum\":{\"Value\":53,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":84,\"Unit\":\"F\",\"UnitType\":18}},\"RealFeelTemperature\":{\"Minimum\":{\"Value\":53,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Cool\"},\"Maximum\":{\"Value\":87,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Very Warm\"}},\"RealFeelTemperatureShade\":{\"Minimum\":{\"Value\":53,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Cool\"},\"Maximum\":{\"Value\":81,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Pleasant\"}},\"HoursOfSun\":12.7,\"DegreeDaySummary\":{\"Heating\":{\"Value\":0,\"Unit\":\"F\",\"UnitType\":18},\"Cooling\":{\"Value\":4,\"Unit\":\"F\",\"UnitType\":18}},\"AirAndPollen\":[{\"Name\":\"AirQuality\",\"Value\":70,\"Category\":\"Moderate\",\"CategoryValue\":2,\"Type\":\"Ozone\"},{\"Name\":\"Grass\",\"Value\":12,\"Category\":\"Moderate\",\"CategoryValue\":2},{\"Name\":\"Mold\",\"Value\":3250,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Ragweed\",\"Value\":5,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Tree\",\"Value\":7,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"UVIndex\",\"Value\":10,\"Category\":\"Very High\",\"CategoryValue\":4}],\"Day\":{\"Icon\":1,\"IconPhrase\":\"Sunny\",\"HasPrecipitation\":false,\"ShortPhrase\":\"Sunny\",\"LongPhrase\":\"Sunny\",\"PrecipitationProbability\":0,\"ThunderstormProbability\":0,\"RainProbability\":0,\"SnowProbability\":0,\"IceProbability\":0,\"Wind\":{\"Speed\":{\"Value\":8.1,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":321,\"Localized\":\"NW\",\"English\":\"NW\"}},\"WindGust\":{\"Speed\":{\"Value\":21.9,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":321,\"Localized\":\"NW\",\"English\":\"NW\"}},\"TotalLiquid\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Rain\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Snow\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Ice\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"HoursOfPrecipitation\":0,\"HoursOfRain\":0,\"HoursOfSnow\":0,\"HoursOfIce\":0,\"CloudCover\":9,\"Evapotranspiration\":{\"Value\":0.23,\"Unit\":\"in\",\"UnitType\":1},\"SolarIrradiance\":{\"Value\":8666.2,\"Unit\":\"W/m²\",\"UnitType\":33},\"RelativeHumidity\":{\"Minimum\":22,\"Maximum\":74,\"Average\":36},\"WetBulbTemperature\":{\"Minimum\":{\"Value\":55,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":60,\"Unit\":\"F\",\"UnitType\":18},\"Average\":{\"Value\":58,\"Unit\":\"F\",\"UnitType\":18}},\"WetBulbGlobeTemperature\":{\"Minimum\":{\"Value\":61,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":72,\"Unit\":\"F\",\"UnitType\":18},\"Average\":{\"Value\":67,\"Unit\":\"F\",\"UnitType\":18}}},\"Night\":{\"Icon\":35,\"IconPhrase\":\"Partly cloudy\",\"HasPrecipitation\":false,\"ShortPhrase\":\"Partly cloudy\",\"LongPhrase\":\"Partly cloudy\",\"PrecipitationProbability\":0,\"ThunderstormProbability\":0,\"RainProbability\":0,\"SnowProbability\":0,\"IceProbability\":0,\"Wind\":{\"Speed\":{\"Value\":5.8,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":313,\"Localized\":\"NW\",\"English\":\"NW\"}},\"WindGust\":{\"Speed\":{\"Value\":18.4,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":318,\"Localized\":\"NW\",\"English\":\"NW\"}},\"TotalLiquid\":{\"Value\":0,\"Unit\":\"in\",\
	"la":     "{\"Headline\":{\"EffectiveDate\":\"2025-05-10T08:00:00-07:00\",\"EffectiveEpochDate\":1746889200,\"Severity\":4,\"Text\":\"Record-breaking high temperatures today\",\"Category\":\"record heat\",\"EndDate\":\"2025-05-10T20:00:00-07:00\",\"EndEpochDate\":1746932400,\"MobileLink\":\"http://www.accuweather.com/en/us/los-angeles-ca/90012/daily-weather-forecast/347625?lang=en-us\",\"Link\":\"http://www.accuweather.com/en/us/los-angeles-ca/90012/daily-weather-forecast/347625?lang=en-us\"},\"DailyForecasts\":[{\"Date\":\"2025-05-10T07:00:00-07:00\",\"EpochDate\":1746885600,\"Sun\":{\"Rise\":\"2025-05-10T05:55:00-07:00\",\"EpochRise\":1746881700,\"Set\":\"2025-05-10T19:44:00-07:00\",\"EpochSet\":1746931440},\"Moon\":{\"Rise\":\"2025-05-10T18:17:00-07:00\",\"EpochRise\":1746926220,\"Set\":\"2025-05-11T05:03:00-07:00\",\"EpochSet\":1746964980,\"Phase\":\"WaxingGibbous\",\"Age\":13},\"Temperature\":{\"Minimum\":{\"Value\":66,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":100,\"Unit\":\"F\",\"UnitType\":18}},\"RealFeelTemperature\":{\"Minimum\":{\"Value\":64,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Pleasant\"},\"Maximum\":{\"Value\":106,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Very Hot\"}},\"RealFeelTemperatureShade\":{\"Minimum\":{\"Value\":64,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Pleasant\"},\"Maximum\":{\"Value\":98,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Hot\"}},\"HoursOfSun\":12.5,\"DegreeDaySummary\":{\"Heating\":{\"Value\":0,\"Unit\":\"F\",\"UnitType\":18},\"Cooling\":{\"Value\":18,\"Unit\":\"F\",\"UnitType\":18}},\"AirAndPollen\":[{\"Name\":\"AirQuality\",\"Value\":73,\"Category\":\"Moderate\",\"CategoryValue\":2,\"Type\":\"Ozone\"},{\"Name\":\"Grass\",\"Value\":2,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Mold\",\"Value\":3250,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Ragweed\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Tree\",\"Value\":50,\"Category\":\"Moderate\",\"CategoryValue\":2},{\"Name\":\"UVIndex\",\"Value\":11,\"Category\":\"Extreme\",\"CategoryValue\":5}],\"Day\":{\"Icon\":1,\"IconPhrase\":\"Sunny\",\"HasPrecipitation\":false,\"ShortPhrase\":\"Sunny; record-breaking heat\",\"LongPhrase\":\"Sunny and hot with the temperature breaking the record of 95 set in 1934; caution advised if outside for extended periods of time\",\"PrecipitationProbability\":1,\"ThunderstormProbability\":0,\"RainProbability\":1,\"SnowProbability\":0,\"IceProbability\":0,\"Wind\":{\"Speed\":{\"Value\":4.6,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":228,\"Localized\":\"SW\",\"English\":\"SW\"}},\"WindGust\":{\"Speed\":{\"Value\":18.4,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":246,\"Localized\":\"WSW\",\"English\":\"WSW\"}},\"TotalLiquid\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Rain\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Snow\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Ice\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"HoursOfPrecipitation\":0,\"HoursOfRain\":0,\"HoursOfSnow\":0,\"HoursOfIce\":0,\"CloudCover\":4,\"Evapotranspiration\":{\"Value\":0.27,\"Unit\":\"in\",\"UnitType\":1},\"SolarIrradiance\":{\"Value\":8761.5,\"Unit\":\"W/m²\",\"UnitType\":33},\"RelativeHumidity\":{\"Minimum\":18,\"Maximum\":52,\"Average\":26},\"WetBulbTemperature\":{\"Minimum\":{\"Value\":66,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":71,\"Unit\":\"F\",\"UnitType\":18},\"Average\":{\"Value\":68,\"Unit\":\"F\",\"UnitType\":18}},\"WetBulbGlobeTemperature\":{\"Minimum\":{\"Value\":74,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":86,\"Unit\":\"F\",\"UnitType\":18},\"Average\":{\"Value\":82,\"Unit\":\"F\",\"UnitType\":18}}},\"Night\":{\"Icon\":35,\"IconPhrase\":\"Partly cloudy\",\"HasPrecipitation\":false,\"ShortPhrase\":\"Partly cloudy\",\"LongPhrase\":\"Partly cloudy\",\"PrecipitationProbability\":0,\"ThunderstormProbability\":0,\"RainProbability\":0,\"SnowProbability\":0,\"IceProbability\":0,\"Wind\":{\"Speed\":{\"Value\":4.6,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":160,\"Localized\":\"SS
	"nyc":    "{\"Headline\":{\"EffectiveDate\":\"2025-05-11T08:00:00-04:00\",\"EffectiveEpochDate\":1746964800,\"Severity\":4,\"Text\":\"Pleasant tomorrow\",\"Category\":\"mild\",\"EndDate\":null,\"EndEpochDate\":null,\"MobileLink\":\"http://www.accuweather.com/en/us/new-york-ny/10021/daily-weather-forecast/14-349727_1_al?lang=en-us\",\"Link\":\"http://www.accuweather.com/en/us/new-york-ny/10021/daily-weather-forecast/14-349727_1_al?lang=en-us\"},\"DailyForecasts\":[{\"Date\":\"2025-05-10T07:00:00-04:00\",\"EpochDate\":1746874800,\"Sun\":{\"Rise\":\"2025-05-10T05:44:00-04:00\",\"EpochRise\":1746870240,\"Set\":\"2025-05-10T20:01:00-04:00\",\"EpochSet\":1746921660},\"Moon\":{\"Rise\":\"2025-05-10T18:24:00-04:00\",\"EpochRise\":1746915840,\"Set\":\"2025-05-11T04:49:00-04:00\",\"EpochSet\":1746953340,\"Phase\":\"WaxingGibbous\",\"Age\":13},\"Temperature\":{\"Minimum\":{\"Value\":57,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":71,\"Unit\":\"F\",\"UnitType\":18}},\"RealFeelTemperature\":{\"Minimum\":{\"Value\":58,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Cool\"},\"Maximum\":{\"Value\":74,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Pleasant\"}},\"RealFeelTemperatureShade\":{\"Minimum\":{\"Value\":58,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Cool\"},\"Maximum\":{\"Value\":67,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Pleasant\"}},\"HoursOfSun\":9.8,\"DegreeDaySummary\":{\"Heating\":{\"Value\":1,\"Unit\":\"F\",\"UnitType\":18},\"Cooling\":{\"Value\":0,\"Unit\":\"F\",\"UnitType\":18}},\"AirAndPollen\":[{\"Name\":\"AirQuality\",\"Value\":54,\"Category\":\"Moderate\",\"CategoryValue\":2,\"Type\":\"Nitrogen Dioxide\"},{\"Name\":\"Grass\",\"Value\":2,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Mold\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Ragweed\",\"Value\":5,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Tree\",\"Value\":50,\"Category\":\"Moderate\",\"CategoryValue\":2},{\"Name\":\"UVIndex\",\"Value\":9,\"Category\":\"Very High\",\"CategoryValue\":4}],\"Day\":{\"Icon\":3,\"IconPhrase\":\"Partly sunny\",\"HasPrecipitation\":false,\"ShortPhrase\":\"Partly sunny; breezy, warmer\",\"LongPhrase\":\"Partly sunny, breezy and warmer\",\"PrecipitationProbability\":0,\"ThunderstormProbability\":0,\"RainProbability\":0,\"SnowProbability\":0,\"IceProbability\":0,\"Wind\":{\"Speed\":{\"Value\":10.4,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":300,\"Localized\":\"WNW\",\"English\":\"WNW\"}},\"WindGust\":{\"Speed\":{\"Value\":24.2,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":296,\"Localized\":\"WNW\",\"English\":\"WNW\"}},\"TotalLiquid\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Rain\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Snow\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Ice\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"HoursOfPrecipitation\":0,\"HoursOfRain\":0,\"HoursOfSnow\":0,\"HoursOfIce\":0,\"CloudCover\":37,\"Evapotranspiration\":{\"Value\":0.15,\"Unit\":\"in\",\"UnitType\":1},\"SolarIrradiance\":{\"Value\":7814.5,\"Unit\":\"W/m²\",\"UnitType\":33},\"RelativeHumidity\":{\"Minimum\":26,\"Maximum\":63,\"Average\":41},\"WetBulbTemperature\":{\"Minimum\":{\"Value\":47,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":53,\"Unit\":\"F\",\"UnitType\":18},\"Average\":{\"Value\":51,\"Unit\":\"F\",\"UnitType\":18}},\"WetBulbGlobeTemperature\":{\"Minimum\":{\"Value\":51,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":62,\"Unit\":\"F\",\"UnitType\":18},\"Average\":{\"Value\":58,\"Unit\":\"F\",\"UnitType\":18}}},\"Night\":{\"Icon\":33,\"IconPhrase\":\"Clear\",\"HasPrecipitation\":false,\"ShortPhrase\":\"Clear\",\"LongPhrase\":\"Clear\",\"PrecipitationProbability\":1,\"ThunderstormProbability\":0,\"RainProbability\":1,\"SnowProbability\":0,\"IceProbability\":0,\"Wind\":{\"Speed\":{\"Value\":3.5,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":268,\"Localized\":\"W\",\"English\":\"W\"}},\"WindGust\":{\"Speed\":{\"Value\":11.5,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":281,\"Localized\":\"W\",\"English\"
	"tokyo":  "{\"Headline\":{\"EffectiveDate\":\"2025-05-11T19:00:00+09:00\",\"EffectiveEpochDate\":1746957600,\"Severity\":5,\"Text\":\"Rain Sunday night\",\"Category\":\"rain\",\"EndDate\":\"2025-05-12T07:00:00+09:00\",\"EndEpochDate\":1747000800,\"MobileLink\":\"http://www.accuweather.com/en/jp/tokyo/226396/daily-weather-forecast/226396?lang=en-us\",\"Link\":\"http://www.accuweather.com/en/jp/tokyo/226396/daily-weather-forecast/226396?lang=en-us\"},\"DailyForecasts\":[{\"Date\":\"2025-05-11T07:00:00+09:00\",\"EpochDate\":1746914400,\"Sun\":{\"Rise\":\"2025-05-11T04:40:00+09:00\",\"EpochRise\":1746906000,\"Set\":\"2025-05-11T18:35:00+09:00\",\"EpochSet\":1746956100},\"Moon\":{\"Rise\":\"2025-05-11T17:24:00+09:00\",\"EpochRise\":1746951840,\"Set\":\"2025-05-12T03:55:00+09:00\",\"EpochSet\":1746989700,\"Phase\":\"WaxingGibbous\",\"Age\":13},\"Temperature\":{\"Minimum\":{\"Value\":62,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":81,\"Unit\":\"F\",\"UnitType\":18}},\"RealFeelTemperature\":{\"Minimum\":{\"Value\":58,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Cool\"},\"Maximum\":{\"Value\":82,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Very Warm\"}},\"RealFeelTemperatureShade\":{\"Minimum\":{\"Value\":58,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Cool\"},\"Maximum\":{\"Value\":77,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Pleasant\"}},\"HoursOfSun\":1,\"DegreeDaySummary\":{\"Heating\":{\"Value\":0,\"Unit\":\"F\",\"UnitType\":18},\"Cooling\":{\"Value\":6,\"Unit\":\"F\",\"UnitType\":18}},\"AirAndPollen\":[{\"Name\":\"AirQuality\",\"Value\":0,\"Category\":\"Good\",\"CategoryValue\":1,\"Type\":\"Ozone\"},{\"Name\":\"Grass\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Mold\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Ragweed\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Tree\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"UVIndex\",\"Value\":5,\"Category\":\"Moderate\",\"CategoryValue\":2}],\"Day\":{\"Icon\":4,\"IconPhrase\":\"Intermittent clouds\",\"HasPrecipitation\":false,\"ShortPhrase\":\"Breezy in the afternoon\",\"LongPhrase\":\"Sun through high clouds and less humid; breezy in the afternoon\",\"PrecipitationProbability\":9,\"ThunderstormProbability\":0,\"RainProbability\":9,\"SnowProbability\":0,\"IceProbability\":0,\"Wind\":{\"Speed\":{\"Value\":10.4,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":261,\"Localized\":\"W\",\"English\":\"W\"}},\"WindGust\":{\"Speed\":{\"Value\":17.3,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":179,\"Localized\":\"S\",\"English\":\"S\"}},\"TotalLiquid\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Rain\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Snow\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Ice\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"HoursOfPrecipitation\":0,\"HoursOfRain\":0,\"HoursOfSnow\":0,\"HoursOfIce\":0,\"CloudCover\":99,\"Evapotranspiration\":{\"Value\":0.13,\"Unit\":\"in\",\"UnitType\":1},\"SolarIrradiance\":{\"Value\":512,\"Unit\":\"W/m²\",\"UnitType\":33},\"RelativeHumidity\":{\"Minimum\":42,\"Maximum\":70,\"Average\":51},\"WetBulbTemperature\":{\"Minimum\":{\"Value\":62,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":65,\"Unit\":\"F\",\"UnitType\":18},\"Average\":{\"Value\":64,\"Unit\":\"F\",\"UnitType\":18}},\"WetBulbGlobeTemperature\":{\"Minimum\":{\"Value\":64,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":71,\"Unit\":\"F\",\"UnitType\":18},\"Average\":{\"Value\":68,\"Unit\":\"F\",\"UnitType\":18}}},\"Night\":{\"Icon\":18,\"IconPhrase\":\"Rain\",\"HasPrecipitation\":true,\"PrecipitationType\":\"Rain\",\"PrecipitationIntensity\":\"Light\",\"ShortPhrase\":\"On-and-off rain and drizzle\",\"LongPhrase\":\"On-and-off rain and drizzle\",\"PrecipitationProbability\":84,\"ThunderstormProbability\":0,\"RainProbability\":84,\"SnowProbability\":0,\"IceProbability\":0,\"Wind\":{\"Speed\":{\"Value\":9.2,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":233,\"Localized\":\"SW\",\"English\":\"SW\"}},\"WindGust\":{\"Sp
	"warsaw": "{\"Headline\":{\"EffectiveDate\":\"2025-05-10T23:00:00+02:00\",\"EffectiveEpochDate\":1746910800,\"Severity\":5,\"Text\":\"Expect showers late Saturday evening\",\"Category\":\"rain\",\"EndDate\":\"2025-05-11T05:00:00+02:00\",\"EndEpochDate\":1746932400,\"MobileLink\":\"http://www.accuweather.com/en/pl/warsaw/274663/daily-weather-forecast/274663?lang=en-us\",\"Link\":\"http://www.accuweather.com/en/pl/warsaw/274663/daily-weather-forecast/274663?lang=en-us\"},\"DailyForecasts\":[{\"Date\":\"2025-05-10T07:00:00+02:00\",\"EpochDate\":1746853200,\"Sun\":{\"Rise\":\"2025-05-10T04:50:00+02:00\",\"EpochRise\":1746845400,\"Set\":\"2025-05-10T20:16:00+02:00\",\"EpochSet\":1746900960},\"Moon\":{\"Rise\":\"2025-05-10T18:14:00+02:00\",\"EpochRise\":1746893640,\"Set\":\"2025-05-11T03:54:00+02:00\",\"EpochSet\":1746928440,\"Phase\":\"WaxingGibbous\",\"Age\":13},\"Temperature\":{\"Minimum\":{\"Value\":36,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":49,\"Unit\":\"F\",\"UnitType\":18}},\"RealFeelTemperature\":{\"Minimum\":{\"Value\":34,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Cold\"},\"Maximum\":{\"Value\":46,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Chilly\"}},\"RealFeelTemperatureShade\":{\"Minimum\":{\"Value\":34,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Cold\"},\"Maximum\":{\"Value\":45,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Chilly\"}},\"HoursOfSun\":4.8,\"DegreeDaySummary\":{\"Heating\":{\"Value\":22,\"Unit\":\"F\",\"UnitType\":18},\"Cooling\":{\"Value\":0,\"Unit\":\"F\",\"UnitType\":18}},\"AirAndPollen\":[{\"Name\":\"AirQuality\",\"Value\":0,\"Category\":\"Good\",\"CategoryValue\":1,\"Type\":\"Ozone\"},{\"Name\":\"Grass\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Mold\",\"Value\":300,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Ragweed\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Tree\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"UVIndex\",\"Value\":2,\"Category\":\"Low\",\"CategoryValue\":1}],\"Day\":{\"Icon\":12,\"IconPhrase\":\"Showers\",\"HasPrecipitation\":true,\"PrecipitationType\":\"Rain\",\"PrecipitationIntensity\":\"Light\",\"ShortPhrase\":\"Cold; spotty morning showers\",\"LongPhrase\":\"A few morning showers; otherwise, low clouds and cold\",\"PrecipitationProbability\":80,\"ThunderstormProbability\":16,\"RainProbability\":80,\"SnowProbability\":0,\"IceProbability\":0,\"Wind\":{\"Speed\":{\"Value\":11.5,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":344,\"Localized\":\"NNW\",\"English\":\"NNW\"}},\"WindGust\":{\"Speed\":{\"Value\":27.6,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":350,\"Localized\":\"N\",\"English\":\"N\"}},\"TotalLiquid\":{\"Value\":0.05,\"Unit\":\"in\",\"UnitType\":1},\"Rain\":{\"Value\":0.05,\"Unit\":\"in\",\"UnitType\":1},\"Snow\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Ice\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"HoursOfPrecipitation\":1.5,\"HoursOfRain\":1.5,\"HoursOfSnow\":0,\"HoursOfIce\":0,\"CloudCover\":88,\"Evapotranspiration\":{\"Value\":0.06,\"Unit\":\"in\",\"UnitType\":1},\"SolarIrradiance\":{\"Value\":2939.2,\"Unit\":\"W/m²\",\"UnitType\":33},\"RelativeHumidity\":{\"Minimum\":59,\"Maximum\":94,\"Average\":74},\"WetBulbTemperature\":{\"Minimum\":{\"Value\":41,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":46,\"Unit\":\"F\",\"UnitType\":18},\"Average\":{\"Value\":44,\"Unit\":\"F\",\"UnitType\":18}},\"WetBulbGlobeTemperature\":{\"Minimum\":{\"Value\":47,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":49,\"Unit\":\"F\",\"UnitType\":18},\"Average\":{\"Value\":48,\"Unit\":\"F\",\"UnitType\":18}}},\"Night\":{\"Icon\":39,\"IconPhrase\":\"Partly cloudy w/ showers\",\"HasPrecipitation\":true,\"PrecipitationType\":\"Rain\",\"PrecipitationIntensity\":\"Light\",\"ShortPhrase\":\"A shower or two this evening\",\"LongPhrase\":\"A couple of brief showers late this evening; clearing and chilly\",\"PrecipitationProbability\":49,\"ThunderstormProbability\":10,\"RainProbability\":49,\"SnowProbability\":0,\"IceProbability\":0,\"Wind\":{\"Sp
	"zurich": "{\"Headline\":{\"EffectiveDate\":\"2025-05-11T08:00:00+02:00\",\"EffectiveEpochDate\":1746943200,\"Severity\":4,\"Text\":\"Pleasant Sunday\",\"Category\":\"mild\",\"EndDate\":null,\"EndEpochDate\":null,\"MobileLink\":\"http://www.accuweather.com/en/ch/zurich/316622/daily-weather-forecast/316622?lang=en-us\",\"Link\":\"http://www.accuweather.com/en/ch/zurich/316622/daily-weather-forecast/316622?lang=en-us\"},\"DailyForecasts\":[{\"Date\":\"2025-05-10T07:00:00+02:00\",\"EpochDate\":1746853200,\"Sun\":{\"Rise\":\"2025-05-10T05:56:00+02:00\",\"EpochRise\":1746849360,\"Set\":\"2025-05-10T20:49:00+02:00\",\"EpochSet\":1746902940},\"Moon\":{\"Rise\":\"2025-05-10T18:54:00+02:00\",\"EpochRise\":1746896040,\"Set\":\"2025-05-11T04:58:00+02:00\",\"EpochSet\":1746932280,\"Phase\":\"WaxingGibbous\",\"Age\":13},\"Temperature\":{\"Minimum\":{\"Value\":43,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":68,\"Unit\":\"F\",\"UnitType\":18}},\"RealFeelTemperature\":{\"Minimum\":{\"Value\":46,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Chilly\"},\"Maximum\":{\"Value\":75,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Pleasant\"}},\"RealFeelTemperatureShade\":{\"Minimum\":{\"Value\":46,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Chilly\"},\"Maximum\":{\"Value\":66,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Pleasant\"}},\"HoursOfSun\":12.3,\"DegreeDaySummary\":{\"Heating\":{\"Value\":10,\"Unit\":\"F\",\"UnitType\":18},\"Cooling\":{\"Value\":0,\"Unit\":\"F\",\"UnitType\":18}},\"AirAndPollen\":[{\"Name\":\"AirQuality\",\"Value\":0,\"Category\":\"Good\",\"CategoryValue\":1,\"Type\":\"Ozone\"},{\"Name\":\"Grass\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Mold\",\"Value\":517,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Ragweed\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Tree\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"UVIndex\",\"Value\":8,\"Category\":\"Very High\",\"CategoryValue\":4}],\"Day\":{\"Icon\":2,\"IconPhrase\":\"Mostly sunny\",\"HasPrecipitation\":false,\"ShortPhrase\":\"Mostly sunny and milder\",\"LongPhrase\":\"Mostly sunny and milder\",\"PrecipitationProbability\":4,\"ThunderstormProbability\":0,\"RainProbability\":4,\"SnowProbability\":0,\"IceProbability\":0,\"Wind\":{\"Speed\":{\"Value\":3.5,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":62,\"Localized\":\"ENE\",\"English\":\"ENE\"}},\"WindGust\":{\"Speed\":{\"Value\":8.1,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":70,\"Localized\":\"ENE\",\"English\":\"ENE\"}},\"TotalLiquid\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Rain\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Snow\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Ice\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"HoursOfPrecipitation\":0,\"HoursOfRain\":0,\"HoursOfSnow\":0,\"HoursOfIce\":0,\"CloudCover\":21,\"Evapotranspiration\":{\"Value\":0.15,\"Unit\":\"in\",\"UnitType\":1},\"SolarIrradiance\":{\"Value\":8153.8,\"Unit\":\"W/m²\",\"UnitType\":33},\"RelativeHumidity\":{\"Minimum\":42,\"Maximum\":70,\"Average\":55},\"WetBulbTemperature\":{\"Minimum\":{\"Value\":44,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":57,\"Unit\":\"F\",\"UnitType\":18},\"Average\":{\"Value\":52,\"Unit\":\"F\",\"UnitType\":18}},\"WetBulbGlobeTemperature\":{\"Minimum\":{\"Value\":48,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":64,\"Unit\":\"F\",\"UnitType\":18},\"Average\":{\"Value\":59,\"Unit\":\"F\",\"UnitType\":18}}},\"Night\":{\"Icon\":33,\"IconPhrase\":\"Clear\",\"HasPrecipitation\":false,\"ShortPhrase\":\"Clear and chilly\",\"LongPhrase\":\"Clear and chilly\",\"PrecipitationProbability\":3,\"ThunderstormProbability\":0,\"RainProbability\":3,\"SnowProbability\":0,\"IceProbability\":0,\"Wind\":{\"Speed\":{\"Value\":3.5,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":43,\"Localized\":\"NE\",\"English\":\"NE\"}},\"WindGust\":{\"Speed\":{\"Value\":8.1,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":43,\"Localized\":\"NE\",\"English\":\"NE\"}},\"TotalLiquid\":{\"Value\
	"berlin": "{\"Headline\":{\"EffectiveDate\":\"2025-05-11T20:00:00+02:00\",\"EffectiveEpochDate\":1746986400,\"Severity\":7,\"Text\":\"Cool Sunday night\",\"Category\":\"cold\",\"EndDate\":\"2025-05-12T08:00:00+02:00\",\"EndEpochDate\":1747029600,\"MobileLink\":\"http://www.accuweather.com/en/de/berlin/10178/daily-weather-forecast/178087?lang=en-us\",\"Link\":\"http://www.accuweather.com/en/de/berlin/10178/daily-weather-forecast/178087?lang=en-us\"},\"DailyForecasts\":[{\"Date\":\"2025-05-10T07:00:00+02:00\",\"EpochDate\":1746853200,\"Sun\":{\"Rise\":\"2025-05-10T05:19:00+02:00\",\"EpochRise\":1746847140,\"Set\":\"2025-05-10T20:47:00+02:00\",\"EpochSet\":1746902820},\"Moon\":{\"Rise\":\"2025-05-10T18:46:00+02:00\",\"EpochRise\":1746895560,\"Set\":\"2025-05-11T04:23:00+02:00\",\"EpochSet\":1746930180,\"Phase\":\"WaxingGibbous\",\"Age\":13},\"Temperature\":{\"Minimum\":{\"Value\":44,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":68,\"Unit\":\"F\",\"UnitType\":18}},\"RealFeelTemperature\":{\"Minimum\":{\"Value\":41,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Chilly\"},\"Maximum\":{\"Value\":69,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Pleasant\"}},\"RealFeelTemperatureShade\":{\"Minimum\":{\"Value\":41,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Cold\"},\"Maximum\":{\"Value\":65,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Pleasant\"}},\"HoursOfSun\":6.4,\"DegreeDaySummary\":{\"Heating\":{\"Value\":9,\"Unit\":\"F\",\"UnitType\":18},\"Cooling\":{\"Value\":0,\"Unit\":\"F\",\"UnitType\":18}},\"AirAndPollen\":[{\"Name\":\"AirQuality\",\"Value\":0,\"Category\":\"Good\",\"CategoryValue\":1,\"Type\":\"Ozone\"},{\"Name\":\"Grass\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Mold\",\"Value\":330,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Ragweed\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Tree\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"UVIndex\",\"Value\":3,\"Category\":\"Moderate\",\"CategoryValue\":2}],\"Day\":{\"Icon\":4,\"IconPhrase\":\"Intermittent clouds\",\"HasPrecipitation\":false,\"ShortPhrase\":\"Times of clouds and sun\",\"LongPhrase\":\"Times of clouds and sun\",\"PrecipitationProbability\":25,\"ThunderstormProbability\":0,\"RainProbability\":25,\"SnowProbability\":0,\"IceProbability\":0,\"Wind\":{\"Speed\":{\"Value\":8.1,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":359,\"Localized\":\"N\",\"English\":\"N\"}},\"WindGust\":{\"Speed\":{\"Value\":23,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":79,\"Localized\":\"E\",\"English\":\"E\"}},\"TotalLiquid\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Rain\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Snow\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Ice\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"HoursOfPrecipitation\":0,\"HoursOfRain\":0,\"HoursOfSnow\":0,\"HoursOfIce\":0,\"CloudCover\":72,\"Evapotranspiration\":{\"Value\":0.1,\"Unit\":\"in\",\"UnitType\":1},\"SolarIrradiance\":{\"Value\":4596.7,\"Unit\":\"W/m²\",\"UnitType\":33},\"RelativeHumidity\":{\"Minimum\":49,\"Maximum\":75,\"Average\":61},\"WetBulbTemperature\":{\"Minimum\":{\"Value\":50,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":57,\"Unit\":\"F\",\"UnitType\":18},\"Average\":{\"Value\":54,\"Unit\":\"F\",\"UnitType\":18}},\"WetBulbGlobeTemperature\":{\"Minimum\":{\"Value\":54,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":64,\"Unit\":\"F\",\"UnitType\":18},\"Average\":{\"Value\":59,\"Unit\":\"F\",\"UnitType\":18}}},\"Night\":{\"Icon\":34,\"IconPhrase\":\"Mostly clear\",\"HasPrecipitation\":false,\"ShortPhrase\":\"Mainly clear\",\"LongPhrase\":\"Mainly clear\",\"PrecipitationProbability\":4,\"ThunderstormProbability\":0,\"RainProbability\":4,\"SnowProbability\":0,\"IceProbability\":0,\"Wind\":{\"Speed\":{\"Value\":8.1,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":65,\"Localized\":\"ENE\",\"English\":\"ENE\"}},\"WindGust\":{\"Speed\":{\"Value\":19.6,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":90,\"Localized\":\"E\",\"English\":\"E\"}}
	"dubai":  "{\"Headline\":{\"EffectiveDate\":\"2025-05-11T01:00:00+04:00\",\"EffectiveEpochDate\":1746910800,\"Severity\":7,\"Text\":\"Warm late Saturday night\",\"Category\":\"heat\",\"EndDate\":\"2025-05-11T07:00:00+04:00\",\"EndEpochDate\":1746932400,\"MobileLink\":\"http://www.accuweather.com/en/ae/dubai/323091/daily-weather-forecast/323091?lang=en-us\",\"Link\":\"http://www.accuweather.com/en/ae/dubai/323091/daily-weather-forecast/323091?lang=en-us\"},\"DailyForecasts\":[{\"Date\":\"2025-05-10T07:00:00+04:00\",\"EpochDate\":1746846000,\"Sun\":{\"Rise\":\"2025-05-10T05:37:00+04:00\",\"EpochRise\":1746841020,\"Set\":\"2025-05-10T18:54:00+04:00\",\"EpochSet\":1746888840},\"Moon\":{\"Rise\":\"2025-05-10T17:04:00+04:00\",\"EpochRise\":1746882240,\"Set\":\"2025-05-11T04:28:00+04:00\",\"EpochSet\":1746923280,\"Phase\":\"WaxingGibbous\",\"Age\":13},\"Temperature\":{\"Minimum\":{\"Value\":81,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":100,\"Unit\":\"F\",\"UnitType\":18}},\"RealFeelTemperature\":{\"Minimum\":{\"Value\":88,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Very Warm\"},\"Maximum\":{\"Value\":108,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Dangerous Heat\"}},\"RealFeelTemperatureShade\":{\"Minimum\":{\"Value\":88,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Very Warm\"},\"Maximum\":{\"Value\":103,\"Unit\":\"F\",\"UnitType\":18,\"Phrase\":\"Very Hot\"}},\"HoursOfSun\":11.5,\"DegreeDaySummary\":{\"Heating\":{\"Value\":0,\"Unit\":\"F\",\"UnitType\":18},\"Cooling\":{\"Value\":26,\"Unit\":\"F\",\"UnitType\":18}},\"AirAndPollen\":[{\"Name\":\"AirQuality\",\"Value\":0,\"Category\":\"Good\",\"CategoryValue\":1,\"Type\":\"Ozone\"},{\"Name\":\"Grass\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Mold\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Ragweed\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"Tree\",\"Value\":0,\"Category\":\"Low\",\"CategoryValue\":1},{\"Name\":\"UVIndex\",\"Value\":12,\"Category\":\"Extreme\",\"CategoryValue\":5}],\"Day\":{\"Icon\":2,\"IconPhrase\":\"Mostly sunny\",\"HasPrecipitation\":false,\"ShortPhrase\":\"Mostly sunny and very warm\",\"LongPhrase\":\"Mostly sunny and very warm\",\"PrecipitationProbability\":0,\"ThunderstormProbability\":0,\"RainProbability\":0,\"SnowProbability\":0,\"IceProbability\":0,\"Wind\":{\"Speed\":{\"Value\":8.1,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":29,\"Localized\":\"NNE\",\"English\":\"NNE\"}},\"WindGust\":{\"Speed\":{\"Value\":29.9,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":340,\"Localized\":\"NNW\",\"English\":\"NNW\"}},\"TotalLiquid\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Rain\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Snow\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"Ice\":{\"Value\":0,\"Unit\":\"in\",\"UnitType\":1},\"HoursOfPrecipitation\":0,\"HoursOfRain\":0,\"HoursOfSnow\":0,\"HoursOfIce\":0,\"CloudCover\":15,\"Evapotranspiration\":{\"Value\":0.26,\"Unit\":\"in\",\"UnitType\":1},\"SolarIrradiance\":{\"Value\":8508.5,\"Unit\":\"W/m²\",\"UnitType\":33},\"RelativeHumidity\":{\"Minimum\":40,\"Maximum\":74,\"Average\":52},\"WetBulbTemperature\":{\"Minimum\":{\"Value\":75,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":80,\"Unit\":\"F\",\"UnitType\":18},\"Average\":{\"Value\":78,\"Unit\":\"F\",\"UnitType\":18}},\"WetBulbGlobeTemperature\":{\"Minimum\":{\"Value\":82,\"Unit\":\"F\",\"UnitType\":18},\"Maximum\":{\"Value\":90,\"Unit\":\"F\",\"UnitType\":18},\"Average\":{\"Value\":86,\"Unit\":\"F\",\"UnitType\":18}}},\"Night\":{\"Icon\":33,\"IconPhrase\":\"Clear\",\"HasPrecipitation\":false,\"ShortPhrase\":\"Clear and very warm\",\"LongPhrase\":\"Clear and very warm\",\"PrecipitationProbability\":0,\"ThunderstormProbability\":0,\"RainProbability\":0,\"SnowProbability\":0,\"IceProbability\":0,\"Wind\":{\"Speed\":{\"Value\":4.6,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":25,\"Localized\":\"NNE\",\"English\":\"NNE\"}},\"WindGust\":{\"Speed\":{\"Value\":11.5,\"Unit\":\"mi/h\",\"UnitType\":9},\"Direction\":{\"Degrees\":340
}

var supportedLocations = map[string]location{
	"london": {nil, 51.507351, -0.127758, "Europe/London", "London"},
	"sf":     {nil, 37.774929, -122.419418, "America/Los_Angeles", "San Francisco"},
	"sj":     {nil, 37.338207, -121.886330, "America/Los_Angeles", "San Jose"},
	"la":     {nil, 34.052235, -118.243683, "America/Los_Angeles", "Los Angeles"},
	"nyc":    {nil, 40.712776, -74.005974, "America/New_York", "New York City"},
	"tokyo":  {nil, 35.689487, 139.691711, "Asia/Tokyo", "Tokyo"},
	"warsaw": {nil, 52.229675, 21.012230, "Europe/Warsaw", "Warsaw"},
	"zurich": {nil, 47.369019, 8.538030, "Europe/Zurich", "Zurich"},
	"berlin": {nil, 52.520008, 13.404954, "Europe/Berlin", "Berlin"},
	"dubai":  {nil, 25.204849, 55.270782, "Asia/Dubai", "Dubai"},
}

func main() {
	port := flag.Int("port", 8080, "the port that the server should listen on")
	genKeys := flag.Bool("generate-vapid-keys", false, "generate a new vapid key pair, which will be outputted to stdout.")
	usePlaceholder := flag.Bool("use-placeholder", false, "use placeholder data instead of real API data.")

	flag.Parse()

	if *genKeys {
		generateKeys()
		return
	}

	slog.Info("starting 7am...")

	_ = godotenv.Load()
	err := checkEnv()
	if err != nil {
		log.Fatal(err)
	}

	wd, err := os.Getwd()
	if err != nil {
		log.Fatal(err)
	}

	p := filepath.Join(wd, "data")
	err = os.MkdirAll(p, os.ModePerm)
	if err != nil {
		log.Fatal(err)
	}
	slog.Info("data directory created", "path", p)

	db, err := initDB()
	if err != nil {
		log.Fatalf("failed to initialize db: %e\n", err)
	}

	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()

	genaiClient, err := genai.NewClient(ctx, &genai.ClientConfig{
		APIKey:  os.Getenv("GEMINI_API_KEY"),
		Backend: genai.BackendGeminiAPI,
	})
	if err != nil {
		log.Fatalf("failed to initialize gemini client: %e\n", err)
	}

	summaryHTML, _ := webDir.ReadFile("web/summary.html")
	summaryPageTemplate, _ := template.New("summary.html").Parse(string(summaryHTML))

	state := state{
		ctx:             ctx,
		db:              db,
		metAPIUserAgent: os.Getenv("MET_API_USER_AGENT"),
		template: pageTemplate{
			summary: summaryPageTemplate,
		},
		summaries:    sync.Map{},
		summaryChans: map[string]chan string{},
		genai:        genaiClient,

		usePlaceholder: *usePlaceholder,

		subscriptions: map[string][]*registeredSubscription{},

		vapidSubject:    os.Getenv("VAPID_SUBJECT"),
		vapidPublicKey:  os.Getenv("VAPID_PUBLIC_KEY_BASE64"),
		vapidPrivateKey: os.Getenv("VAPID_PRIVATE_KEY_BASE64"),
	}

	var schedulers []gocron.Scheduler

	// schedule periodic updates of weather summary for each supported location
	for locKey, loc := range supportedLocations {
		l, err := time.LoadLocation(loc.ianaName)
		if err != nil {
			log.Fatal(err)
		}

		loc.tz = l

		s, err := gocron.NewScheduler(gocron.WithLocation(l))
		if err != nil {
			log.Fatal(err)
		}

		_, err = s.NewJob(
			gocron.DailyJob(1, gocron.NewAtTimes(gocron.NewAtTime(7, 0, 0))),
			gocron.NewTask(updateSummary, &state, locKey, &loc),
			gocron.WithStartAt(gocron.WithStartImmediately()),
		)
		if err != nil {
			log.Fatal(err)
		}

		schedulers = append(schedulers, s)
		c := make(chan string)

		state.subscriptions[locKey] = []*registeredSubscription{}
		state.summaryChans[locKey] = c

		// listen for summary updates, and publish updates to all update subscribers via web push
		go listenForSummaryUpdates(&state, locKey)

		s.Start()

		slog.Info("update job scheduled", "location", locKey)
	}

	err = loadSubscriptions(&state)
	if err != nil {
		log.Fatalf("failed to load existing subscriptions: %e\n", err)
	}

	http.HandleFunc("/", handleHTTPRequest(&state))

	slog.Info("server starting", "port", *port)

	err = http.ListenAndServe(fmt.Sprintf(":%d", *port), nil)
	if err != nil {
		log.Printf("failed to start http server: %e\n", err)
	}

	for _, s := range schedulers {
		s.Shutdown()
	}

	slog.Info("7am shut down")
}

func generateKeys() {
	priv, pub, err := webpush.GenerateVAPIDKeys()
	if err != nil {
		log.Fatal(err)
	}

	fmt.Println("all keys are base64 url encoded.")
	fmt.Printf("public key: %v\n", pub)
	fmt.Printf("private key: %v\n", priv)
}

func checkEnv() error {
	var missing []string
	for _, k := range envKeys {
		v := os.Getenv(k)
		if v == "" {
			missing = append(missing, k)
		}
	}
	if len(missing) > 0 {
		return fmt.Errorf("missing env: %v", strings.Join(missing, ", "))
	}
	return nil
}

func handleHTTPRequest(state *state) http.HandlerFunc {
	return func(writer http.ResponseWriter, request *http.Request) {
		path := strings.TrimPrefix(request.URL.Path, "/")

		if path == "" {
			if request.Method == "" || request.Method == "GET" {
				index, _ := webDir.ReadFile("web/index.html")
				writer.Write(index)
			} else {
				writer.WriteHeader(http.StatusMethodNotAllowed)
			}
		} else if path == "vapid" {
			if request.Method == "" || request.Method == "GET" {
				writer.Write([]byte(state.vapidPublicKey))
			} else {
				writer.WriteHeader(http.StatusMethodNotAllowed)
			}
		} else if strings.HasPrefix(path, "registrations") {
			if path == "registrations" && request.Method == "POST" {
				defer request.Body.Close()

				update := updateSubscription{}
				err := json.NewDecoder(request.Body).Decode(&update)
				if err != nil {
					writer.WriteHeader(http.StatusBadRequest)
					return
				}

				reg, err := registerSubscription(state, &update)
				if err != nil {
					slog.Error("web push subscription registration failed", "error", err)
					writer.WriteHeader(http.StatusBadRequest)
					return
				}

				err = json.NewEncoder(writer).Encode(reg)
				if err != nil {
					writer.WriteHeader(http.StatusBadRequest)
				} else {
					slog.Info("new web push registration", "id", reg.ID)
				}
			} else if request.Method == "PATCH" || request.Method == "DELETE" {
				parts := strings.Split(path, "/")
				if len(parts) < 2 {
					writer.WriteHeader(http.StatusMethodNotAllowed)
					return
				}

				regID, err := uuid.Parse(parts[1])
				if err != nil {
					writer.WriteHeader(http.StatusNotFound)
					return
				}

				switch request.Method {
				case "PATCH":
					defer request.Body.Close()

					update := updateSubscription{}
					err = json.NewDecoder(request.Body).Decode(&update)
					if err != nil {
						writer.WriteHeader(http.StatusBadRequest)
						return
					}

					reg, err := updateRegisteredSubscription(state, regID, &update)
					if err != nil {
						if errors.Is(err, sql.ErrNoRows) {
							writer.WriteHeader(http.StatusNotFound)
						} else {
							writer.WriteHeader(http.StatusInternalServerError)
						}
					} else {
						json.NewEncoder(writer).Encode(reg)
						slog.Info("web push registration updated", "id", reg.ID, "locations", strings.Join(reg.Locations, ","))
					}

				case "DELETE":
					err = deleteSubscription(state, regID)
					if err != nil {
						if errors.Is(err, sql.ErrNoRows) {
							writer.WriteHeader(http.StatusNotFound)
						} else {
							writer.WriteHeader(http.StatusInternalServerError)
						}
					} else {
						writer.WriteHeader(http.StatusNoContent)
						slog.Info("web push registration deleted", "id", regID)
					}
				}

			} else {
				writer.WriteHeader(http.StatusMethodNotAllowed)
			}

		} else {
			if request.Method != "" && request.Method != "GET" {
				writer.WriteHeader(http.StatusMethodNotAllowed)
				return
			}

			summary, ok := state.summaries.Load(path)
			if ok {
				loc := supportedLocations[path]
				state.template.summary.Execute(writer, summaryTemplateData{summary.(string), path, loc.displayName})
			} else {
				f, err := webDir.ReadFile("web/" + path)
				if err != nil {
					writer.WriteHeader(http.StatusNotFound)
				} else {
					m := mime.TypeByExtension(filepath.Ext(path))
					if m != "" {
						writer.Header().Set("Content-Type", m)
					}
					writer.Write(f)
				}
			}
		}
	}
}

func initDB() (*sql.DB, error) {
	db, err := sql.Open("sqlite", "file:data/data.sqlite")
	if err != nil {
		log.Fatalln("failed to initialize database")
	}

	_, err = db.Exec(`
		CREATE TABLE IF NOT EXISTS subscriptions(
			id TEXT PRIMARY KEY,
			locations TEXT NOT NULL,
			subscription_json TEXT NOT NULL
		);
	`)
	if err != nil {
		return nil, err
	}

	return db, nil
}

func loadSubscriptions(state *state) error {
	rows, err := state.db.Query(`SELECT id, locations, subscription_json FROM subscriptions;`)
	if err != nil {
		return err
	}
	defer rows.Close()

	for rows.Next() {
		var id string
		var locations string
		var j string

		err := rows.Scan(&id, &locations, &j)
		if err != nil {
			slog.Warn("unable to load a subscription", "error", err)
			continue
		}

		s := webpush.Subscription{}
		err = json.Unmarshal([]byte(j), &s)
		if err != nil {
			slog.Warn("invalid web push subscription json encountered", "id", id, "error", err)
			continue
		}

		reg := &registeredSubscription{
			ID:           uuid.MustParse(id),
			Locations:    strings.Split(locations, ","),
			Subscription: &s,
		}

		for _, l := range reg.Locations {
			state.subscriptions[l] = append(state.subscriptions[l], reg)
		}
	}

	return nil
}

func updateRegisteredSubscription(state *state, id uuid.UUID, update *updateSubscription) (*registeredSubscription, error) {
	j, err := json.Marshal(update.Subscription)
	if err != nil {
		return nil, err
	}

	rows, err := state.db.Query("SELECT locations FROM subscriptions WHERE id = ?", id)
	if err != nil {
		return nil, err
	}

	rows.Next()

	var locStr string
	err = rows.Scan(&locStr)
	if err != nil {
		return nil, err
	}

	rows.Close()

	// not very proud of this one
	// ideally the list of locations should be stored in a separate table
	// but since the list is very small, and im too lazy to bring in a separate table
	// this should be fine for now
	locs := strings.Split(locStr, ",")
	locs = append(locs, update.Locations...)
	locs = slices.DeleteFunc(locs, func(l string) bool {
		return slices.Contains(update.RemoveLocations, l)
	})
	locs = slices.Compact(locs)

	_, err = state.db.Exec(
		"UPDATE subscriptions SET subscription_json = ?, locations = ? WHERE id = ?",
		string(j), strings.Join(locs, ","), id,
	)
	if err != nil {
		return nil, err
	}

	reg := &registeredSubscription{
		ID:           id,
		Subscription: &update.Subscription,
		Locations:    locs,
	}

	state.subscriptionsMutex.Lock()
	for _, l := range update.Locations {
		state.subscriptions[l] = append(state.subscriptions[l], reg)
	}
	for _, l := range update.RemoveLocations {
		state.subscriptions[l] = slices.DeleteFunc(state.subscriptions[l], func(s *registeredSubscription) bool {
			return s.ID == reg.ID
		})
	}
	state.subscriptionsMutex.Unlock()

	return reg, nil
}

func registerSubscription(state *state, sub *updateSubscription) (*registeredSubscription, error) {
	j, err := json.Marshal(sub.Subscription)
	if err != nil {
		return nil, fmt.Errorf("invalid web push subscription object: %w", err)
	}

	id, err := uuid.NewV7()
	if err != nil {
		return nil, fmt.Errorf("unable to generate id for subscription: %w", err)
	}

	locs := slices.Compact(sub.Locations)

	_, err = state.db.Exec(
		"INSERT INTO subscriptions (id, locations, subscription_json) VALUES (?, ?, ?);",
		id, strings.Join(locs, ","), string(j),
	)
	if err != nil {
		return nil, fmt.Errorf("unable to insert into subscriptions table: %w", err)
	}

	reg := registeredSubscription{
		ID:           id,
		Subscription: &sub.Subscription,
		Locations:    locs,
	}

	state.subscriptionsMutex.Lock()
	for _, l := range sub.Locations {
		state.subscriptions[l] = append(state.subscriptions[l], &reg)
	}
	state.subscriptionsMutex.Unlock()

	return &reg, nil
}

func deleteSubscription(state *state, regID uuid.UUID) error {
	_, err := state.db.Exec("DELETE FROM subscriptions WHERE id = ?", regID)
	return err
}

func updateSummary(state *state, locKey string, loc *location) {
	slog.Info("updating weather summary", "location", locKey)

	var weatherJSON string
	if state.usePlaceholder {
		weatherJSON = placeholderWeather[locKey]
	} else {
		req, err := http.NewRequest("GET", fmt.Sprintf("https://api.met.no/weatherapi/locationforecast/2.0/compact?lat=%v&lon=%v", loc.lat, loc.lon), nil)
		if err != nil {
			slog.Error("failed to query weather data", "location", locKey, "error", err)
			return
		}
		req.Header.Set("User-Agent", state.metAPIUserAgent)

		resp, err := http.DefaultClient.Do(req)
		if err != nil {
			slog.Error("failed to query weather data", "location", locKey, "error", err)
			return
		}

		b, err := io.ReadAll(resp.Body)
		defer resp.Body.Close()
		if err != nil {
			slog.Error("failed to query weather data", "location", locKey, "error", err)
			return
		}

		weatherJSON = string(b)
	}

	date := time.Now().In(loc.tz).Format("2006-02-01")

	result, err := state.genai.Models.GenerateContent(state.ctx, "gemini-2.0-flash", []*genai.Content{{
		Parts: []*genai.Part{
			{Text: fmt.Sprintf(prompt, date, loc.displayName, loc.displayName)},
			{Text: weatherJSON},
		},
	}}, nil)
	if err != nil {
		slog.Error("failed to generate weather summary", "location", locKey, "error", err)
		return
	}

	summary := result.Text()
	c := state.summaryChans[locKey]

	state.summaries.Store(locKey, summary)
	if len(state.subscriptions[locKey]) > 0 {
		c <- summary
	}

	slog.Info("updated weather summary", "location", locKey)
}

func listenForSummaryUpdates(state *state, locKey string) {
	c := state.summaryChans[locKey]

	opts := webpush.Options{
		Subscriber:      state.vapidSubject,
		VAPIDPublicKey:  state.vapidPublicKey,
		VAPIDPrivateKey: state.vapidPrivateKey,
		TTL:             30,
	}

	for {
		select {
		case summary := <-c:
			payload := webpushNotificationPayload{
				Summary:  summary,
				Location: locKey,
			}
			b, err := json.Marshal(&payload)
			if err != nil {
				slog.Error("failed to create web push notification payload", "location", locKey, "error", err)
				continue
			}

			subs := state.subscriptions[locKey]

			slog.Info("pushing weather summary to subscribers", "count", len(subs), "location", locKey)

			var wg sync.WaitGroup
			for _, sub := range subs {
				wg.Add(1)
				go func() {
					defer wg.Done()
					_, err := webpush.SendNotificationWithContext(state.ctx, b, sub.Subscription, &opts)
					if err != nil {
						slog.Warn("unable to send web push to subscription", "id", sub.ID, "location", locKey, "error", err)
					}
				}()
			}

			wg.Wait()

			slog.Info("pushed weather summary to subscribers", "count", len(subs), "location", locKey)

		case <-state.ctx.Done():
			return
		}
	}
}