import {z} from 'zod'

export type SourceTypeFilter = 'blog' | 'forum' | 'news' | 'social' | 'reviews' | 'messenger';

export type GetApiTopicsTopicIdStatisticsCitiesArgs = {topicId: number, from?: string | undefined, to?: string | undefined, size?: number | undefined, country?: Array<string> | undefined, excludeCountry?: Array<string> | undefined, sourceTypes?: Array<SourceTypeFilter> | undefined, excludeSourceTypes?: Array<SourceTypeFilter> | undefined, sources?: Array<string> | undefined, excludeSources?: Array<string> | undefined, tags?: Array<number> | undefined, excludeTag?: Array<number> | undefined, subcategories?: Array<number> | undefined, excludeSubcategory?: Array<number> | undefined};

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

export const getApiTopicsTopicIdStatisticsCitiesResponse = z.object({cities: z.array(z.object({id: z.string().optional(), name: z.string().optional(), count: z.number().int().optional()})).optional(), missingCount: z.number().int().nullable().optional(), otherCount: z.number().int().optional(), totalCount: z.number().int().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
};

/**
 * Cities
 * 
 * GET /topics/{topicId}/statistics/cities
 * 
 * Also accepts auth: ApiKeyQuery
 */
export const getApiTopicsTopicIdStatisticsCities = async (args: GetApiTopicsTopicIdStatisticsCitiesArgs, options?: GetApiTopicsTopicIdStatisticsCitiesOptions) => {
const {baseUrl = "https://api.youscan.io/api/external", fetch: fetchFn = fetch, ApiKeyHeader} = options ?? {}

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

if (args.from != null) query.append("from", String(args.from))
if (args.to != null) query.append("to", String(args.to))
if (args.size != null) query.append("size", String(args.size))
for (const item of args.country ?? []) query.append("country", String(item))
for (const item of args.excludeCountry ?? []) query.append("excludeCountry", String(item))
for (const item of args.sourceTypes ?? []) query.append("sourceTypes", String(item))
for (const item of args.excludeSourceTypes ?? []) query.append("excludeSourceTypes", String(item))
for (const item of args.sources ?? []) query.append("sources", String(item))
for (const item of args.excludeSources ?? []) query.append("excludeSources", String(item))
for (const item of args.tags ?? []) query.append("tags", String(item))
for (const item of args.excludeTag ?? []) query.append("excludeTag", String(item))
for (const item of args.subcategories ?? []) query.append("subcategories", String(item))
for (const item of args.excludeSubcategory ?? []) query.append("excludeSubcategory", String(item))
if (ApiKeyHeader !== undefined) headers.set("X-API-KEY", ApiKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/topics/${encodeURIComponent(String(args.topicId))}/statistics/cities${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(getApiTopicsTopicIdStatisticsCitiesResponse, await res.json())
};