import { getHeaders, useClient } from 'hooks/useClient';

// Every call the panels make to this plugin's own sidecar, through `/api/atelier`.
//
// `useClient('/api/atelier')` gives typed verbs for JSON; `fileUrl` below is the one thing a client
// call cannot do — put a bearer token on an `<img src>`.

const ATELIER_API = '/api/atelier';

/** A configured connection: adapter + model + key. Several may share one adapter. */
export type ProviderStatus = {
  id: string;
  name: string;
  adapter: string;
  model: string;
  enabled: boolean;
  is_default: boolean;
  configured: boolean;
  key_source: 'database' | 'environment' | null;
  env_var: string;
  created_at: string;
  updated_at: string;
};

/** The code side — what a new provider can be built on. */
export type Adapter = {
  name: string;
  label: string;
  models: string[];
  default_model: string;
  env_var: string;
  supports_edit: boolean;
};

/** Snake case, matching the server — one spelling per field across every endpoint. */
export type GenerationRow = {
  id: string;
  request_id: string;
  index: number;
  operation: 'generate' | 'edit';
  status: 'queued' | 'running' | 'succeeded' | 'failed';
  provider: string;
  model: string;
  prompt: string;
  options: Record<string, unknown> | null;
  input_images: string[] | null;
  mask_image: string | null;
  image_path: string | null;
  url: string | null;
  width: number | null;
  height: number | null;
  has_alpha: boolean | null;
  opaque: boolean | null;
  cost_usd: string | null;
  duration_ms: number | null;
  error: string | null;
  created_at: string;
};

export type JobResponse = {
  id?: string;
  status?: string;
  created?: number;
  data?: { url: string; revised_prompt?: string; b64_json?: string }[];
  atelier?: {
    id: string;
    status: 'queued' | 'running' | 'succeeded' | 'failed' | 'partial';
    cost_usd: string | null;
    duration_ms: number;
    images: { id: string; status: string; url: string | null; error: string | null }[];
  };
  error?: { message: string; param?: string | null };
};

export type Collection = {
  id: string;
  name: string;
  description: string | null;
  created_at: string;
  updated_at: string;
};

export type CollectionSummary = Collection & { item_count: number; cover_image_path: string | null; cover_url: string | null };
export type CollectionDetail = Collection & { images: GenerationRow[] };

/**
 * `row.url` (e.g. `/files/<name>`) with this session's bearer token appended, for an `<img src>`.
 *
 * Browsers cannot set an `Authorization` header on an `<img>` request, so the token travels in the
 * query string instead — the same escape hatch `FileViewer/file-types.ts` and the music plugin's
 * `MusicPlayerHost` already use for exactly this reason (`permission-gate.ts` and `user-middleware.ts`
 * both read `?token=` as well as the header).
 */
export function fileUrl(path: string | null): string | null {
  if (!path) return null;
  const token = getHeaders()['Authorization']?.replace('Bearer ', '') ?? '';
  return `${ATELIER_API}${path}?token=${encodeURIComponent(token)}`;
}

export function useAtelierClient() {
  const client = useClient(ATELIER_API);

  return {
    ...client,

    listProviders: () => client.get<{ data: ProviderStatus[] }>('providers').then((r) => r.data),
    listAdapters: () => client.get<{ data: Adapter[] }>('providers/adapters').then((r) => r.data),

    listGenerations: (limit = 60) => client.get<{ data: GenerationRow[] }>(`images?limit=${limit}`).then((r) => r.data),

    startGeneration: (body: Record<string, unknown>) => client.post<{ id: string }>('images/generations', body),

    /** Long-polls up to `waitSeconds` server-side, so the panel does not run its own retry loop. */
    awaitGeneration: (id: string, waitSeconds = 30) => client.get<JobResponse>(`images/generations/${id}?wait=${waitSeconds}`),

    listCollections: () => client.get<{ data: CollectionSummary[] }>('collections').then((r) => r.data),
    getCollection: (id: string) => client.get<{ data: CollectionDetail }>(`collections/${id}`).then((r) => r.data),
    createCollection: (name: string) =>
      client.post<{ data: Collection }>('collections', { name }).then((r) => r.data),
    deleteCollection: (id: string) => client.delete<{ data: unknown }>(`collections/${id}`),
    addToCollection: (id: string, generationIds: string[]) =>
      client
        .post<{ data: { added: number; images: GenerationRow[] } }>(`collections/${id}/items`, { generationIds })
        .then((r) => r.data),
    removeFromCollection: (id: string, generationId: string) =>
      client.delete<{ data: { images: GenerationRow[] } }>(`collections/${id}/items/${generationId}`).then((r) => r.data),
  };
}

export type UseAtelierClientType = ReturnType<typeof useAtelierClient>;