import {z} from 'zod'

export type CreateApiAppAnalyzeGHealthArgs = {body: {linking_id: number, period_days?: (30 | 60 | 90) | undefined, channel?: ('PERFORMANCE_MAX' | 'SEARCH' | 'DEMAND_GEN') | undefined}};

export type CreateApiAppAnalyzeGHealthOptions = {baseUrl: string, token?: string | undefined, fetch?: typeof fetch | undefined};

export const appAnalyzeGoogleAdsHealthMetricsSchema = z.object({cost: z.number(), clicks: z.number().int(), impressions: z.number().int(), conversions: z.number(), conversionValue: z.number(), cpa: z.number(), roas: z.number(), ctr: z.number(), cpc: z.number(), convRate: z.number()});

export const appAnalyzeGoogleAdsHealthAccountSchema = z.object({campaignCount: z.number().int(), hasConversionValue: z.boolean(), totals: appAnalyzeGoogleAdsHealthMetricsSchema});

export const appAnalyzeGoogleAdsHealthDeltasSchema = z.object({cost: z.number().nullable(), conversions: z.number().nullable(), conversionValue: z.number().nullable(), cpa: z.number().nullable(), roas: z.number().nullable(), convRate: z.number().nullable(), ctr: z.number().nullable(), cpc: z.number().nullable()});

export const appAnalyzeGoogleAdsHealthFlagSchema = z.object({level: z.enum(["GREEN", "YELLOW", "RED", "INSUFFICIENT_DATA"]), area: z.string(), message: z.string()});

export const appAnalyzeGoogleAdsHealthCampaignSchema = z.object({campaignId: z.number().int(), campaignName: z.string(), goalType: z.enum(["LEADGEN", "ECOMMERCE"]), status: z.enum(["GOOD", "STABLE", "NEEDS_ATTENTION", "ISSUE", "INSUFFICIENT_DATA"]), trend: z.enum(["IMPROVING", "STABLE", "DECLINING", "INSUFFICIENT_DATA"]), score: z.number().int().nullable(), topIssue: z.string().nullable(), current: appAnalyzeGoogleAdsHealthMetricsSchema, previous: appAnalyzeGoogleAdsHealthMetricsSchema, deltas: appAnalyzeGoogleAdsHealthDeltasSchema, flags: z.array(appAnalyzeGoogleAdsHealthFlagSchema)});

export const appAnalyzeGoogleAdsHealthReportSchema = z.object({linkingId: z.number().int(), linkingCustomerId: z.number().int(), linkingName: z.string(), periodDays: z.number().int(), account: appAnalyzeGoogleAdsHealthAccountSchema, campaigns: z.array(appAnalyzeGoogleAdsHealthCampaignSchema)});

export const createApiAppAnalyzeGHealthResponse = z.object({data: appAnalyzeGoogleAdsHealthReportSchema});

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
};

/**
 * POST /app/analyze/g/health
 */
export const createApiAppAnalyzeGHealth = async (args: CreateApiAppAnalyzeGHealthArgs, options: CreateApiAppAnalyzeGHealthOptions) => {
const {baseUrl, fetch: fetchFn = fetch, token} = options ?? {}

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

if (token !== undefined) headers.set("authorization", token)

const url = `${baseUrl.replace(/\/+$/, '')}/app/analyze/g/health${query.size > 0 ? `?${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(createApiAppAnalyzeGHealthResponse, await res.json())
};