import {z} from 'zod'

export type GetApiRedditCryptoV1SearchArgs = {q: string, limit?: number | undefined};

export type GetApiRedditCryptoV1SearchOptions = {baseUrl?: string | undefined, ApiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const cryptoSearchSummary = z.object({mentions: z.number().int().gte(0), buzz_score: z.number().gte(0).lte(100).nullable(), trend: z.enum(["rising", "falling", "stable"]).nullable().optional(), sentiment_score: z.number().gte(-1).lte(1).nullable().optional()});

export const cryptoSearchItem = z.object({symbol: z.string(), name: z.string(), market_cap_rank: z.number().int().nullable().optional(), market_cap_usd: z.number().nullable().optional(), aliases: z.array(z.string()).optional(), summary: cryptoSearchSummary});

export const cryptoSearchResponse = z.object({query: z.string(), count: z.number().int(), period_days: z.number().int().gte(1), results: z.array(cryptoSearchItem)});

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
};

/**
 * Search tokens
 * 
 * GET /reddit/crypto/v1/search
 */
export const getApiRedditCryptoV1Search = async (args: GetApiRedditCryptoV1SearchArgs, options?: GetApiRedditCryptoV1SearchOptions) => {
const {baseUrl = "https://api.adanos.com", fetch: fetchFn = fetch, ApiKeyAuth} = 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.limit != null) query.append("limit", String(args.limit))
if (ApiKeyAuth !== undefined) headers.set("X-API-Key", ApiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/reddit/crypto/v1/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(cryptoSearchResponse, await res.json())
};