// Mirrors of the Rust structs in src-tauri/src/models.rs. Field names match
// serde's output exactly so no mapping layer is needed.

export type DownloadState =
  | "queued"
  | "running"
  | "done"
  | "failed"
  | "cancelled";

export interface ChannelWithCount {
  id: string;
  title: string;
  url: string;
  video_count: number;
  downloaded_count: number;
}

export interface FeedItem {
  id: string;
  channel_id: string;
  channel_title: string;
  title: string;
  description: string;
  /** Unix seconds. */
  published: number;
  thumb_url: string;
  thumb_path: string | null;
  views: number;
  is_short: boolean;
  state: DownloadState | null;
  path: string | null;
  pct: number | null;
  error: string | null;
  /** Seconds watched, and the video's length — drives the feed progress bar. */
  position: number | null;
  duration: number | null;
}

export interface FeedFilter {
  channel_id?: string | null;
  search?: string | null;
  downloaded_only: boolean;
  hide_shorts: boolean;
  limit?: number | null;
}

export interface Prereqs {
  yt_dlp: string | null;
  ffmpeg: string | null;
  library_path: string;
}

export interface RefreshSummary {
  channels: number;
  new_videos: number;
  failures: string[];
}

export interface RefreshProgress {
  done: number;
  total: number;
  channel: string;
}

export interface DownloadProgressEvent {
  video_id: string;
  pct: number | null;
  bytes_done: number;
  bytes_total: number | null;
  speed: number | null;
  eta: number | null;
}

export interface DownloadStateEvent {
  video_id: string;
  state: DownloadState;
  error: string | null;
  path: string | null;
}

export interface ImportPreview {
  incoming: number;
  removed_channels: number;
  removed_videos: number;
  removed_downloads: number;
}

export type Quality = "best" | "compatible";