import {z} from 'zod'

export type GetApiLocaleMeetingsJsonArgs = {locale: 'ar' | 'zh' | 'en' | 'fr' | 'ru' | 'es', q?: string | undefined, ft?: '1' | undefined, category?: string | undefined, date?: string | undefined, from?: string | undefined, to?: string | undefined, sort?: ('date_desc' | 'date_asc' | 'title_asc' | 'title_desc') | undefined, page?: number | undefined, text?: (Array<'transcript' | 'pv' | 'sr'>) | undefined, xlang?: '1' | undefined};

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

export const meetingsResponse = z.object({meetings: z.array(z.object({title: z.string().nullable(), date: z.string().nullable(), body: z.string().nullable(), category: z.string().nullable(), slug: z.string(), duration: z.number().nullable(), hasTranscript: z.boolean(), pageUrl: z.string(), jsonUrl: z.string(), textUrl: z.string().nullable(), matches: z.object({count: z.number().int().gte(-9007199254740991).lte(9007199254740991), statements: z.array(z.object({speaker: z.object({affiliation: z.string().nullable(), affiliation_full: z.string().nullable(), group: z.string().nullable(), function: z.string().nullable()}).nullable(), text: z.string(), start: z.number().int().gte(-9007199254740991).lte(9007199254740991), pageUrl: z.string()}))}).optional()})), total: z.number().int().gte(-9007199254740991).lte(9007199254740991), totalIncludingOther: z.number().int().gte(-9007199254740991).lte(9007199254740991), hasMore: z.boolean(), page: z.number().int().gte(-9007199254740991).lte(9007199254740991), pageSize: z.number().int().gte(-9007199254740991).lte(9007199254740991), statementTotal: z.number().int().gte(-9007199254740991).lte(9007199254740991).optional()});

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
};

/**
 * Browse or search meetings (JSON)
 * 
 * GET /{locale}/meetings.json
 */
export const getApiLocaleMeetingsJson = async (args: GetApiLocaleMeetingsJsonArgs, options: GetApiLocaleMeetingsJsonOptions) => {
const {baseUrl, 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.ft != null) query.append("ft", String(args.ft))
if (args.category != null) query.append("category", String(args.category))
if (args.date != null) query.append("date", String(args.date))
if (args.from != null) query.append("from", String(args.from))
if (args.to != null) query.append("to", String(args.to))
if (args.sort != null) query.append("sort", String(args.sort))
if (args.page != null) query.append("page", String(args.page))
for (const item of args.text ?? []) query.append("text", String(item))
if (args.xlang != null) query.append("xlang", String(args.xlang))

const url = `${baseUrl.replace(/\/+$/, '')}/${encodeURIComponent(String(args.locale))}/meetings.json${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(meetingsResponse, await res.json())
};