import {z} from 'zod'

export type ChatPrivacyType = 'Public' | 'Private';

export type CatalogSortField = 'members_count' | 'members_growth7d' | 'members_growth30d' | 'members_growth90d' | 'post_views' | 'post_views24h' | 'er' | 'ads_index' | 'mentions_all' | 'mentions7_d' | 'mentions30_d';

export type SortDirection = 'asc' | 'desc';

export type GetApiV1CatalogSearchArgs = {term?: string | undefined, search_in_about?: boolean | undefined, country?: string | undefined, language?: string | undefined, category?: string | undefined, members_min?: number | undefined, members_max?: number | undefined, views_min?: number | undefined, views_max?: number | undefined, er_min?: number | undefined, er_max?: number | undefined, privacy?: ChatPrivacyType | undefined, verified_only?: boolean | undefined, sort_by?: CatalogSortField | undefined, sort_direction?: SortDirection | undefined, limit?: number | undefined, skip?: number | undefined};

export type GetApiV1CatalogSearchOptions = {baseUrl?: string | undefined, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const chatPrivacyType = z.enum(["Public", "Private"]);

export const membersChange = z.object({tomorrow: z.number().int().nullable().optional(), last_7_days: z.number().int().nullable().optional(), last_30_days: z.number().int().nullable().optional()});

export const adsIndexGrade = z.enum(["D", "D+", "C", "C+", "B", "B+", "A", "A+"]);

export const mentionsStats = z.object({all_time: z.number().int().gte(0).nullable().optional(), last_7_days: z.number().int().gte(0).nullable().optional(), last_30_days: z.number().int().gte(0).nullable().optional()});

export const catalogItem = z.object({internal_id: z.string(), title: z.string(), description: z.string().nullable().optional(), members_count: z.number().int().gte(0), privacy: chatPrivacyType, photo_url: z.string().nullable().optional(), country: z.string().nullable().optional(), language: z.string().nullable().optional(), category: z.string().nullable().optional(), verified: z.boolean(), members_change: membersChange.nullable().optional(), post_views: z.number().int().gte(0).nullable().optional(), post_views_24h: z.number().int().gte(0).nullable().optional(), er: z.number().nullable().optional(), ads_index: adsIndexGrade.nullable().optional(), mentions: mentionsStats.nullable().optional()});

export const catalogSearchResponse = z.object({items: z.array(catalogItem), count: z.number().int(), audience_count: z.number().int()});

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
};

/**
 * Catalog Search
 * 
 * GET /v1/catalog/search
 */
export const getApiV1CatalogSearch = async (args: GetApiV1CatalogSearchArgs, options?: GetApiV1CatalogSearchOptions) => {
const {baseUrl = "https://api.tlmtr.io", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (args.term != null) query.append("term", String(args.term))
if (args.search_in_about != null) query.append("search_in_about", String(args.search_in_about))
if (args.country != null) query.append("country", String(args.country))
if (args.language != null) query.append("language", String(args.language))
if (args.category != null) query.append("category", String(args.category))
if (args.members_min != null) query.append("members_min", String(args.members_min))
if (args.members_max != null) query.append("members_max", String(args.members_max))
if (args.views_min != null) query.append("views_min", String(args.views_min))
if (args.views_max != null) query.append("views_max", String(args.views_max))
if (args.er_min != null) query.append("er_min", String(args.er_min))
if (args.er_max != null) query.append("er_max", String(args.er_max))
if (args.privacy != null) query.append("privacy", String(args.privacy))
if (args.verified_only != null) query.append("verified_only", String(args.verified_only))
if (args.sort_by != null) query.append("sort_by", String(args.sort_by))
if (args.sort_direction != null) query.append("sort_direction", String(args.sort_direction))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.skip != null) query.append("skip", String(args.skip))
if (apiKey !== undefined) headers.set("x-api-key", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/catalog/search${query.size > 0 ? `?${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(catalogSearchResponse, await res.json())
};