export interface DaySummary {
  date: string
  count: number
  first_ts?: string
  last_ts?: string
}

export interface Trackpoint {
  event_id: string
  device_id: string
  trip_id: string
  timestamp: string
  lat: number
  lon: number
  source: 'gps' | 'manual'
  note?: string
}

export interface Stop {
  stop_id: string
  device_id: string
  trip_id: string
  start_ts: string
  end_ts: string
  center_lat: number
  center_lon: number
  duration_s: number
  place_label?: string
}

export interface Suggestion {
  suggestion_id: string
  stop_id: string
  type: 'highlight' | 'name_place' | 'add_note'
  title: string
  text: string
  created_at: string
  dismissed_at?: string
}

async function get<T>(path: string): Promise<T> {
  const res = await fetch(path, { credentials: 'include' })
  if (res.status === 401) {
    window.location.href = '/login'
    throw new Error('unauthenticated')
  }
  if (!res.ok) throw new Error(`${res.status} ${res.statusText}`)
  return res.json() as Promise<T>
}

export const api = {
  getDays(from?: string, to?: string): Promise<DaySummary[]> {
    const now = new Date()
    const defaultTo = now.toISOString().slice(0, 10)
    const past = new Date(now)
    past.setDate(past.getDate() - 90)
    const defaultFrom = past.toISOString().slice(0, 10)
    const params = new URLSearchParams({
      from: from ?? defaultFrom,
      to: to ?? defaultTo,
    })
    return get<DaySummary[]>(`/v1/days?${params}`)
  },
  getTrackpoints(date: string): Promise<Trackpoint[]> {
    return get<Trackpoint[]>(`/v1/trackpoints?date=${date}`)
  },
  getStops(date: string): Promise<Stop[]> {
    return get<Stop[]>(`/v1/stops?date=${date}`)
  },
  getSuggestions(date: string): Promise<Suggestion[]> {
    return get<Suggestion[]>(`/v1/suggestions?date=${date}`)
  },
}