import {z} from 'zod'

export type GetApiEntitiesJourneysJourneyIdConversionSankeyChartsArgs = {journeyId: number};

export type GetApiEntitiesJourneysJourneyIdConversionSankeyChartsOptions = {baseUrl?: string | undefined, TdApikeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const journeySankeyChartNode = z.object({label: z.string(), value: z.object({id: z.string().optional(), type: z.enum(["stage", "goal", "exit", "jump", "activation", "milestone"]).optional()})});

export const journeySankeyChartLink = z.object({source: z.string(), target: z.string(), value: z.number(), conversionRate: z.number().optional()});

export const journeySankeyChart = z.object({attributes: z.object({updatedAt: z.string().optional(), journeyStageId: z.string().nullable().optional(), chart: z.object({title: z.string().optional(), chartType: z.literal("sankey").optional(), data: z.array(journeySankeyChartNode).optional(), metaData: z.object({links: z.array(journeySankeyChartLink).optional()}).optional()}).optional()}).optional()});

export const journeySankeyCharts = z.array(journeySankeyChart);

export const entitiesGetJourneyConversionSankeyChartsJsonApiResponse = z.object({data: journeySankeyCharts});

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
};

/**
 * Retrieve the list of conversion sankey chart source data
 * 
 * GET /entities/journeys/{journeyId}/conversion_sankey_charts
 */
export const getApiEntitiesJourneysJourneyIdConversionSankeyCharts = async (args: GetApiEntitiesJourneysJourneyIdConversionSankeyChartsArgs, options?: GetApiEntitiesJourneysJourneyIdConversionSankeyChartsOptions) => {
const {baseUrl = "https://api-cdp.treasuredata.com", fetch: fetchFn = fetch, TdApikeyAuth} = options ?? {}

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

if (TdApikeyAuth !== undefined) headers.set("Authorization", TdApikeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/entities/journeys/${encodeURIComponent(String(args.journeyId))}/conversion_sankey_charts${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(entitiesGetJourneyConversionSankeyChartsJsonApiResponse, await res.json())
};