// key = name (Ly !== ly !== ลี่) no sensitive
type Band = Record<srting, {
  name: string
  image_url: string
  promoted_song_1?: string
  promoted_song_2?: string
  song_requested?: boolean
  description?: string
  social_media: {
    facebook_url?: string
    instargram_url?: string
    tiktok_url?: string
    website?: string
  }
  streaming: {
    apple_music_url?: string
    spotify_url?: string
    youtube_music_url?: string
  }
  ringtone: {
    line_melody_url?: string
  }
  payment: {
    qrcode_url?: string
    active?: boolean
  }
  line_beacon: Array<{
    hardware_id: string
    passcode: string
  }>
  updated_by: string // Line UserId
}>

// key = name
type Event = Record<srting, {
  name: string
  date: string // DD-MM-YYYY
  start_time: string // hh:mm
  end_time: string // hh:mm
  available_seats: number
  age_limitation: number
  alcohol_free?: boolean
  song_requested?: boolean
  description?: string
  poster_url?: string
  ticket_type: {
    free: boolean
    price?: number
  }
  social_media: {
    facebook_url?: string
    instargram_url?: string
    tiktok_url?: string
    website?: string
  }
  location: {
    address: string
    gmap_url?: string
  }
  line_beacon: Array<{
    hardware_id: string
    passcode: string
  }>
  line_up: Array<{
    start_time: string // hh:mm
    end_time: string // hh:mm
    band_name: string
  }>
  interested_person: Array<string> // line userid of audiance
  updated_by: string // Line UserID
}>

// key of LineBeacon is hardware_id
type LineBeacon = Record<srting, {
  event?: string // key of Event
  band?: string // key of Band
}>

// auto genarate key
type SongRequest = Record<string,  {
  song_name: string
  note?: string
  requested_by?: string // Line userid
  band_name?: string
  requested_at?: timestamp
}>

// auto genarate key
type Flex = Record<string, {
  user_id: string // Line userid
  band_name: string // Band name
  timestamp: timestamp
}>