import {z} from 'zod'

export type GetApiV2InstancesPerformanceArgs = {startDate: string, endDate: string, metrics: Array<string>, instanceIds?: Array<string> | undefined, campaignIds?: Array<number> | undefined, platform?: (Array<'instagram' | 'tiktok' | 'facebook' | 'youtube' | 'twitter' | 'linkedin' | 'pinterest' | 'snapchat' | 'blog' | 'twitch'>) | undefined, contentType?: (Array<'instagram_post' | 'instagram_reel' | 'instagram_story' | 'facebook_post' | 'facebook_live' | 'facebook_group' | 'facebook_reel' | 'tiktok' | 'youtube_video' | 'youtube_shorts' | 'twitter' | 'linkedin' | 'pinterest' | 'snapchat_story' | 'blog' | 'twitch_stream'>) | undefined, dateBasis?: ('post_date' | 'performance_date') | undefined};

export type GetApiV2InstancesPerformanceOptions = {baseUrl?: string | undefined, JWT?: string | undefined, fetch?: typeof fetch | undefined};

export const performanceSummaryMetricsDto = z.object({affiliateLinksClicks: z.number().nullable(), affiliateLinksConversions: z.number().nullable(), affiliateLinksSales: z.number().nullable(), campaignsCost: z.number().nullable(), cpe: z.number().nullable(), cpm: z.number().nullable(), engagementRate: z.number().nullable(), engagements: z.number().nullable(), estimatedContentCost: z.number().nullable(), estimatedValueGenerated: z.number().nullable(), impressions: z.number().nullable(), organicReach: z.number().nullable(), paidAdSpend: z.number().nullable(), paidCpe: z.number().nullable(), paidCpm: z.number().nullable(), paidEngagementRate: z.number().nullable(), paidEngagements: z.number().nullable(), paidImpressions: z.number().nullable(), paidPostsCount: z.number().nullable(), paidReach: z.number().nullable(), paidReturnOnAdSpend: z.number().nullable(), paidViews: z.number().nullable(), postsCount: z.number().nullable(), reach: z.number().nullable(), returnOnInvestment: z.number().nullable(), trackingLinksClicks: z.number().nullable(), trackingLinksConversionValue: z.number().nullable(), trackingLinksConversions: z.number().nullable(), views: z.number().nullable()});

export const performanceSummaryResponseDto = z.object({metrics: performanceSummaryMetricsDto});

export const getApiV2InstancesPerformanceResponse = z.object({data: performanceSummaryResponseDto, nextCursor: z.string().nullable()});

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
};

/**
 * Instance performance summary
 * 
 * GET /v2/instances/performance
 */
export const getApiV2InstancesPerformance = async (args: GetApiV2InstancesPerformanceArgs, options?: GetApiV2InstancesPerformanceOptions) => {
const {baseUrl = "https://reporting.api.later.com", fetch: fetchFn = fetch, JWT} = options ?? {}

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

if (args.startDate != null) query.append("startDate", String(args.startDate))
if (args.endDate != null) query.append("endDate", String(args.endDate))
for (const item of args.metrics ?? []) query.append("metrics", String(item))
for (const item of args.instanceIds ?? []) query.append("instanceIds", String(item))
for (const item of args.campaignIds ?? []) query.append("campaignIds", String(item))
for (const item of args.platform ?? []) query.append("platform", String(item))
for (const item of args.contentType ?? []) query.append("contentType", String(item))
if (args.dateBasis != null) query.append("dateBasis", String(args.dateBasis))
if (JWT !== undefined) headers.set('authorization', `Bearer ${JWT}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/instances/performance${query.size > 0 ? `?${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(getApiV2InstancesPerformanceResponse, await res.json())
};