import {z} from 'zod'

export type GetApiV1SearchCheckinsArgs = {q: string, page?: number | undefined, per_page?: number | undefined};

export type GetApiV1SearchCheckinsOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const checkinSummary = z.object({current_session_elapsed: z.number().int(), total_checkins: z.number().int(), total_times: z.number().int(), average_interval: z.number().int(), median_interval: z.number().int(), longest_interval: z.number().int(), shortest_interval: z.number().int()});

export const user = z.object({name: z.string().max(15), display_name: z.string().max(20), is_protected: z.boolean(), private_likes: z.boolean(), bio: z.string().max(160).optional(), url: z.string().optional(), checkin_summary: checkinSummary.optional()});

export const checkin = z.object({id: z.number().int().optional(), checked_in_at: z.string().optional(), tags: z.array(z.string().max(255)).optional(), link: z.string().max(2000).optional(), note: z.string().max(500).optional(), is_private: z.boolean().optional(), is_too_sensitive: z.boolean().optional(), discard_elapsed_time: z.boolean().optional(), source: z.enum(["web", "csv", "webhook", "api"]).optional(), user: user.optional()});

export const getApiV1SearchCheckinsResponse = z.array(checkin);

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * チェックインの検索
 * 
 * GET /v1/search/checkins
 */
export const getApiV1SearchCheckins = async (args: GetApiV1SearchCheckinsArgs, options?: GetApiV1SearchCheckinsOptions) => {
const {baseUrl = "https://shikorism.net/api", fetch: fetchFn = fetch} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json")

if (args.q != null) query.append("q", String(args.q))
if (args.page != null) query.append("page", String(args.page))
if (args.per_page != null) query.append("per_page", String(args.per_page))

const url = `${baseUrl.replace(/\/+$/, '')}/v1/search/checkins${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(getApiV1SearchCheckinsResponse, await res.json())
};