import {z} from 'zod'

export type CreateApiV1AdsKeywordsArgs = {body: {accountId: string, adSetId: string, keywords: Array<string | {text: string, matchType?: ('exact' | 'phrase' | 'broad') | undefined}>, negative?: boolean | undefined}};

export type CreateApiV1AdsKeywordsOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const adKeyword = z.object({id: z.string().optional(), platformCriterionId: z.string().optional(), resourceName: z.string().optional(), accountId: z.string().optional(), profileId: z.string().optional(), platform: z.literal("google").optional(), adAccountId: z.string().optional(), campaignId: z.string().optional(), campaignName: z.string().nullable().optional(), campaignStatus: z.string().nullable().optional(), adSetId: z.string().optional(), adSetName: z.string().nullable().optional(), adSetStatus: z.string().nullable().optional(), keyword: z.string().optional(), matchType: z.enum(["exact", "phrase", "broad", "unknown"]).optional(), status: z.enum(["active", "paused"]).optional(), negative: z.boolean().optional(), qualityScore: z.number().int().nullable().optional(), quality: z.object({score: z.number().int().nullable().optional(), expectedCtr: z.enum(["BELOW_AVERAGE", "AVERAGE", "ABOVE_AVERAGE", "null"]).nullable().optional(), adRelevance: z.enum(["BELOW_AVERAGE", "AVERAGE", "ABOVE_AVERAGE", "null"]).nullable().optional(), landingPageExperience: z.enum(["BELOW_AVERAGE", "AVERAGE", "ABOVE_AVERAGE", "null"]).nullable().optional()}).optional(), syncedAt: z.string().nullable().optional(), metrics: z.object({windowDays: z.number().int().optional(), clicks: z.number().int().optional(), impressions: z.number().int().optional(), cost: z.number().optional(), conversions: z.number().optional(), firstPageCpc: z.number().nullable().optional(), firstPositionCpc: z.number().nullable().optional()}).nullable().optional()});

export const createApiV1AdsKeywordsResponse = z.object({keywords: z.array(adKeyword).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
};

/**
 * Add Search ad-group keywords
 * 
 * POST /v1/ads/keywords
 */
export const createApiV1AdsKeywords = async (args: CreateApiV1AdsKeywordsArgs, options?: CreateApiV1AdsKeywordsOptions) => {
const {baseUrl = "https://zernio.com/api", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/ads/keywords${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(createApiV1AdsKeywordsResponse, await res.json())
};