import {z} from 'zod'

export type GetApiV1AmazonProductsAsinReviewsArgs = {asin: string, domain?: string | undefined, page?: number | undefined, sort_by?: ('helpful' | 'recent') | undefined, star?: ('one_star' | 'two_star' | 'three_star' | 'four_star' | 'five_star' | 'positive' | 'critical') | undefined, verified_only?: boolean | undefined, media_only?: boolean | undefined};

export type GetApiV1AmazonProductsAsinReviewsOptions = {baseUrl?: string | undefined, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const review = z.object({id: z.string().optional(), title: z.string().optional(), body: z.string().optional(), rating: z.number().int().optional(), date_raw: z.string().nullable().optional(), date_utc: z.number().nullable().optional(), date_at: z.string().nullable().optional(), review_country: z.string().nullable().optional(), is_global_review: z.boolean().optional(), profile: z.object({}).optional(), verified_purchase: z.boolean().optional(), vine_program: z.boolean().optional(), helpful_votes: z.number().int().nullable().optional(), variant: z.string().nullable().optional(), images: z.array(z.string()).optional()});

export const pagination = z.object({current: z.union([z.number().int(), z.string()]).optional(), next: z.string().nullable().optional(), total_results: z.number().int().nullable().optional(), total_pages: z.number().int().nullable().optional(), page_no: z.record(z.string(), z.string()).optional()});

export const getApiV1AmazonProductsAsinReviewsResponse = z.object({asin: z.string().optional(), domain: z.string().optional(), rating: z.number().optional(), ratings_total: z.number().int().optional(), rating_breakdown: z.object({five_star: z.number().int().optional(), four_star: z.number().int().optional(), three_star: z.number().int().optional(), two_star: z.number().int().optional(), one_star: z.number().int().optional()}).optional(), reviews: z.array(review).optional(), pagination: pagination.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
};

/**
 * Get Reviews
 * 
 * GET /v1/amazon/products/{asin}/reviews
 */
export const getApiV1AmazonProductsAsinReviews = async (args: GetApiV1AmazonProductsAsinReviewsArgs, options?: GetApiV1AmazonProductsAsinReviewsOptions) => {
const {baseUrl = "https://scrapebadger.com", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (args.domain != null) query.append("domain", String(args.domain))
if (args.page != null) query.append("page", String(args.page))
if (args.sort_by != null) query.append("sort_by", String(args.sort_by))
if (args.star != null) query.append("star", String(args.star))
if (args.verified_only != null) query.append("verified_only", String(args.verified_only))
if (args.media_only != null) query.append("media_only", String(args.media_only))
if (apiKey !== undefined) headers.set("x-api-key", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/amazon/products/${encodeURIComponent(String(args.asin))}/reviews${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(getApiV1AmazonProductsAsinReviewsResponse, await res.json())
};