// api.ts から分割（挙動不変）: User Folder Pets。

// --- User Folder Pets ---
export interface PetSettings {
  enabled: boolean;
  activePetId: string | null;
  size: 32 | 48 | 64 | 80;
  position: 'bottom-right';
  sound: boolean;
  reducedMotion: boolean;
  toolSparkEnabled: boolean;
  workerPets: Record<string, string>;
}

export interface PetSummary {
  id: string;
  name: string;
  description: string | null;
  spriteFile: string | null;
  previewFile: string | null;
  frameWidth: number | null;
  frameHeight: number | null;
  gridCols: number | null;
  gridRows: number | null;
  updatedAt: string;
}

export interface PetDetail extends PetSummary {
  manifest: Record<string, unknown>;
}

export interface PetsResponse {
  pets: PetSummary[];
  settings: PetSettings;
}

const PETS_BASE = '/api/users/me/pets';

export function petAssetUrl(petId: string, file: string): string {
  return `${PETS_BASE}/${encodeURIComponent(petId)}/assets/${encodeURIComponent(file)}`;
}

export async function fetchPets(): Promise<PetsResponse> {
  const res = await fetch(PETS_BASE, { credentials: 'include' });
  const data = await res.json();
  if (!res.ok) throw new Error(data?.error ?? 'Failed to fetch pets');
  return data;
}

export async function fetchPet(petId: string): Promise<PetDetail> {
  const res = await fetch(`${PETS_BASE}/${encodeURIComponent(petId)}`, { credentials: 'include' });
  const data = await res.json();
  if (!res.ok) throw new Error(data?.error ?? 'Failed to fetch pet');
  return data.pet;
}

export async function importPet(file: File, options: { petId?: string; overwrite?: boolean } = {}): Promise<PetDetail> {
  const params = new URLSearchParams();
  params.set('filename', file.name);
  if (options.petId) params.set('petId', options.petId);
  if (options.overwrite) params.set('overwrite', 'true');
  const res = await fetch(`${PETS_BASE}/import?${params.toString()}`, {
    method: 'POST',
    credentials: 'include',
    headers: { 'Content-Type': 'application/zip' },
    body: await file.arrayBuffer(),
  });
  const data = await res.json().catch(() => ({}));
  if (!res.ok) throw new Error(data?.error ?? 'Failed to import pet');
  return data.pet;
}

export async function deletePet(petId: string): Promise<void> {
  const res = await fetch(`${PETS_BASE}/${encodeURIComponent(petId)}`, {
    method: 'DELETE',
    credentials: 'include',
  });
  const data = await res.json().catch(() => ({}));
  if (!res.ok) throw new Error(data?.error ?? 'Failed to delete pet');
}

export async function updatePetSettings(patch: Partial<PetSettings>): Promise<PetSettings> {
  const res = await fetch(`${PETS_BASE}/settings`, {
    method: 'PUT',
    credentials: 'include',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify(patch),
  });
  const data = await res.json();
  if (!res.ok) throw new Error(data?.error ?? 'Failed to update pet settings');
  return data.settings;
}