import { getServerUrl } from "./server-url"

function apiBase() {
  return `${getServerUrl()}/api/admin`
}

function serverBase() {
  return `${getServerUrl()}/api`
}

export interface ConfigFieldDef {
  type: "string" | "number" | "select" | "multiselect"
  label: string
  required?: boolean
  description?: string
  secret?: boolean
  defaultValue?: string | number | string[]
  options?: { label: string; value: string }[]
}

export interface SourceDefinition {
  id: string
  name: string
  description: string
  alwaysEnabled?: boolean
  fields: Record<string, ConfigFieldDef>
}

export interface SourceConfig {
  sourceId: string
  enabled: boolean
  config: Record<string, unknown>
}

const sourceDefinitions: SourceDefinition[] = [
  {
    id: "aelis.location",
    name: "Location",
    description: "Device location provider. Always enabled as a dependency for other sources.",
    alwaysEnabled: true,
    fields: {},
  },
  {
    id: "aelis.weather",
    name: "WeatherKit",
    description: "Apple WeatherKit weather data. Requires Apple Developer credentials.",
    fields: {
      privateKey: { type: "string", label: "Private Key", required: true, secret: true, description: "Apple WeatherKit private key (PEM format)" },
      keyId: { type: "string", label: "Key ID", required: true, secret: true },
      teamId: { type: "string", label: "Team ID", required: true, secret: true },
      serviceId: { type: "string", label: "Service ID", required: true, secret: true },
      units: { type: "select", label: "Units", options: [{ label: "Metric", value: "metric" }, { label: "Imperial", value: "imperial" }], defaultValue: "metric" },
      hourlyLimit: { type: "number", label: "Hourly Forecast Limit", defaultValue: 12, description: "Number of hourly forecasts to include" },
      dailyLimit: { type: "number", label: "Daily Forecast Limit", defaultValue: 7, description: "Number of daily forecasts to include" },
    },
  },
  {
    id: "aelis.tfl",
    name: "TfL",
    description: "Transport for London tube line status alerts.",
    fields: {
      lines: {
        type: "multiselect",
        label: "Lines",
        description: "Lines to monitor. Leave empty for all lines.",
        defaultValue: [],
        options: [
          { label: "Bakerloo", value: "bakerloo" },
          { label: "Central", value: "central" },
          { label: "Circle", value: "circle" },
          { label: "District", value: "district" },
          { label: "Hammersmith & City", value: "hammersmith-city" },
          { label: "Jubilee", value: "jubilee" },
          { label: "Metropolitan", value: "metropolitan" },
          { label: "Northern", value: "northern" },
          { label: "Piccadilly", value: "piccadilly" },
          { label: "Victoria", value: "victoria" },
          { label: "Waterloo & City", value: "waterloo-city" },
          { label: "Lioness", value: "lioness" },
          { label: "Mildmay", value: "mildmay" },
          { label: "Windrush", value: "windrush" },
          { label: "Weaver", value: "weaver" },
          { label: "Suffragette", value: "suffragette" },
          { label: "Liberty", value: "liberty" },
          { label: "Elizabeth", value: "elizabeth" },
        ],
      },
    },
  },
]

export function fetchSources(): Promise<SourceDefinition[]> {
  return Promise.resolve(sourceDefinitions)
}

export async function fetchSourceConfig(
  sourceId: string,
): Promise<SourceConfig | null> {
  const res = await fetch(`${serverBase()}/sources/${sourceId}`, {
    credentials: "include",
  })
  if (res.status === 404) return null
  if (!res.ok) throw new Error(`Failed to fetch source config: ${res.status}`)
  const data = (await res.json()) as { enabled: boolean; config: Record<string, unknown> }
  return { sourceId, enabled: data.enabled, config: data.config }
}

export async function fetchConfigs(): Promise<SourceConfig[]> {
  const results = await Promise.all(
    sourceDefinitions.map((s) => fetchSourceConfig(s.id)),
  )
  return results.filter((c): c is SourceConfig => c !== null)
}

export async function replaceSource(
  sourceId: string,
  body: { enabled: boolean; config: unknown },
): Promise<void> {
  const res = await fetch(`${serverBase()}/sources/${sourceId}`, {
    method: "PUT",
    headers: { "Content-Type": "application/json" },
    credentials: "include",
    body: JSON.stringify(body),
  })
  if (!res.ok) {
    const data = (await res.json()) as { error?: string }
    throw new Error(data.error ?? `Failed to replace source config: ${res.status}`)
  }
}

export async function updateProviderConfig(
  sourceId: string,
  body: Record<string, unknown>,
): Promise<void> {
  const res = await fetch(`${apiBase()}/${sourceId}/config`, {
    method: "PUT",
    headers: { "Content-Type": "application/json" },
    credentials: "include",
    body: JSON.stringify(body),
  })
  if (!res.ok) {
    const data = (await res.json()) as { error?: string }
    throw new Error(data.error ?? `Failed to update provider config: ${res.status}`)
  }
}

export interface LocationInput {
  lat: number
  lng: number
  accuracy: number
}

export async function pushLocation(location: LocationInput): Promise<void> {
  const res = await fetch(`${serverBase()}/location`, {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    credentials: "include",
    body: JSON.stringify({
      ...location,
      timestamp: new Date().toISOString(),
    }),
  })
  if (!res.ok) {
    const data = (await res.json()) as { error?: string }
    throw new Error(data.error ?? `Failed to push location: ${res.status}`)
  }
}

export interface FeedItemSlot {
  description: string
  content: string | null
}

export interface FeedItem {
  id: string
  sourceId: string
  type: string
  timestamp: string
  data: Record<string, unknown>
  signals?: {
    urgency?: number
    timeRelevance?: string
  }
  slots?: Record<string, FeedItemSlot>
  ui?: unknown
}

export interface FeedResponse {
  items: FeedItem[]
  errors: { sourceId: string; error: string }[]
}

export async function fetchFeed(): Promise<FeedResponse> {
  const res = await fetch(`${serverBase()}/feed`, { credentials: "include" })
  if (!res.ok) throw new Error(`Failed to fetch feed: ${res.status}`)
  return res.json() as Promise<FeedResponse>
}