import { toApiUrl } from './runtime'

async function request(path, { method = 'GET', body, headers } = {}) {
  const res = await fetch(toApiUrl(path), {
    method,
    credentials: 'include',
    headers: {
      ...(body ? { 'Content-Type': 'application/json' } : {}),
      ...(headers || {}),
    },
    body: body ? JSON.stringify(body) : undefined,
  })

  const contentType = res.headers.get('content-type') || ''
  const data = contentType.includes('application/json') ? await res.json() : await res.text()

  if (!res.ok) {
    const err = new Error('request_failed')
    err.status = res.status
    err.data = data
    throw err
  }
  return data
}

export const api = {
  me: () => request('/api/auth/me'),
  authMeta: () => request('/api/auth/meta'),
  signup: ({ email, password }) => request('/api/auth/signup', { method: 'POST', body: { email, password } }),
  login: ({ email, password }) => request('/api/auth/login', { method: 'POST', body: { email, password } }),
  logout: () => request('/api/auth/logout', { method: 'POST' }),

  listGames: () => request('/api/games'),
  getGame: (gameId) => request(`/api/games/${encodeURIComponent(gameId)}`),
  updateAdminGameDisplayOrder: (payload) => request('/api/admin/games/display-order', { method: 'PATCH', body: payload }),
  updateAdminGameItem: (gameId, itemId, payload) =>
    request(`/api/admin/games/${encodeURIComponent(gameId)}/items/${encodeURIComponent(itemId)}`, { method: 'PATCH', body: payload }),
  listAdminCustomItems: ({ q = '', page = 1, limit = 50, orphanOnly = false } = {}) =>
    request(
      `/api/admin/custom-items?q=${encodeURIComponent(q)}&page=${encodeURIComponent(page)}&limit=${encodeURIComponent(limit)}&orphanOnly=${encodeURIComponent(orphanOnly)}`
    ),
  listAdminTierLists: ({ q = '', page = 1, limit = 50 } = {}) =>
    request(`/api/admin/tierlists?q=${encodeURIComponent(q)}&page=${encodeURIComponent(page)}&limit=${encodeURIComponent(limit)}`),
  listAdminTemplateRequests: () => request('/api/admin/template-requests'),
  promoteAdminCustomItem: (itemId, payload) =>
    request(`/api/admin/custom-items/${encodeURIComponent(itemId)}/promote`, { method: 'POST', body: payload }),
  promoteAdminTierListItems: (tierListId, payload) =>
    request(`/api/admin/tierlists/${encodeURIComponent(tierListId)}/promote-items`, { method: 'POST', body: payload }),
  createAdminGameTemplateFromTierList: (tierListId, payload) =>
    request(`/api/admin/tierlists/${encodeURIComponent(tierListId)}/create-game-template`, { method: 'POST', body: payload }),
  approveAdminTemplateRequest: (requestId, payload) =>
    request(`/api/admin/template-requests/${encodeURIComponent(requestId)}/approve`, { method: 'POST', body: payload || {} }),
  rejectAdminTemplateRequest: (requestId) => request(`/api/admin/template-requests/${encodeURIComponent(requestId)}/reject`, { method: 'POST', body: {} }),
  listAdminUsers: () => request('/api/admin/users'),
  updateAdminUser: (userId, payload) =>
    request(`/api/admin/users/${encodeURIComponent(userId)}`, { method: 'PATCH', body: payload }),
  updateAdminUserPassword: (userId, payload) =>
    request(`/api/admin/users/${encodeURIComponent(userId)}/password`, { method: 'PATCH', body: payload }),
  deleteAdminUser: (userId) => request(`/api/admin/users/${encodeURIComponent(userId)}`, { method: 'DELETE' }),

  listPublicTierLists: (gameId) =>
    request(`/api/tierlists/public?gameId=${encodeURIComponent(gameId || '')}`),
  searchPublicTierLists: (gameId, q = '') =>
    request(`/api/tierlists/public?gameId=${encodeURIComponent(gameId || '')}&q=${encodeURIComponent(q || '')}`),
  listMyTierLists: () => request('/api/tierlists/me'),
  listMyFavoriteTierLists: ({ q = '', sort = 'favorited' } = {}) =>
    request(`/api/tierlists/favorites/me?q=${encodeURIComponent(q)}&sort=${encodeURIComponent(sort)}`),
  getTierList: (id) => request(`/api/tierlists/${encodeURIComponent(id)}`),
  favoriteTierList: (id) => request(`/api/tierlists/${encodeURIComponent(id)}/favorite`, { method: 'POST' }),
  unfavoriteTierList: (id) => request(`/api/tierlists/${encodeURIComponent(id)}/favorite`, { method: 'DELETE' }),
  deleteTierList: (id) => request(`/api/tierlists/${encodeURIComponent(id)}`, { method: 'DELETE' }),
  requestTierListTemplate: (id, payload) => request(`/api/tierlists/${encodeURIComponent(id)}/template-request`, { method: 'POST', body: payload }),
  saveTierList: (payload) => request('/api/tierlists', { method: 'POST', body: payload }),
  uploadTierListThumbnail: async (file) => {
    const fd = new FormData()
    fd.append('thumbnail', file)
    const res = await fetch(toApiUrl('/api/tierlists/thumbnail'), {
      method: 'POST',
      credentials: 'include',
      body: fd,
    })
    const data = await res.json()
    if (!res.ok) {
      const err = new Error('request_failed')
      err.status = res.status
      err.data = data
      throw err
    }
    return data
  },
  deleteAdminCustomItem: (itemId) => request(`/api/admin/custom-items/${encodeURIComponent(itemId)}`, { method: 'DELETE' }),
  deleteAdminUnusedCustomItems: ({ q = '' } = {}) =>
    request(`/api/admin/custom-items?q=${encodeURIComponent(q)}`, { method: 'DELETE' }),
}