import {z} from 'zod'

export type GetApiApiV1ExperimentsIdResultsArgs = {id: string};

export type GetApiApiV1ExperimentsIdResultsOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const errorEntity = z.object({errorCode: z.string().optional(), message: z.string().optional(), fieldName: z.string().optional()});

export const totalSession = z.object({total: z.number().int().optional(), variants: z.record(z.string(), z.number().int()).optional()});

export const metric = z.object({name: z.string().optional(), description: z.string().optional(), category: z.enum(["DIFFERENTIATING_FEATURES", "PAID_FEATURES", "PLATFORM_SPECIFIC_CUSTOMIZATION", "SOPHISTICATED_CONTENT_ARCHITECTURE", "POSITIVE_USER_EXPERIENCE", "PLATFORM_SPECIFIC_DEVELOPMENT", "RECENT_ACTIVITY", "HISTORY_LEGACY_DEPRECATED_FEATURES"]).optional(), feature: z.enum(["CONTENTLETS", "LANGUAGES", "CONTENT_TYPES", "SITES", "URL_MAPS", "WORKFLOW", "USERS", "SITE_SEARCH", "IMAGE_API", "LAYOUT", "CONTENT_TYPE_FIELDS", "AI", "EXPERIMENTS"]).optional()});

export const goal = z.object({metric: metric.optional(), type: z.enum(["MINIMIZE", "MAXIMIZE"]).optional()});

export const uniqueBySessionResume = z.object({count: z.number().int().optional(), conversionRate: z.number().optional()});

export const resultResumeItem = z.object({uniqueBySession: z.number().int().optional(), totalSessions: z.number().int().optional(), conversionRate: z.number().optional()});

export const variantResults = z.object({weight: z.number().optional(), variantName: z.string().optional(), variantDescription: z.string().optional(), uniqueBySession: uniqueBySessionResume.optional(), details: z.record(z.string(), resultResumeItem).optional()});

export const goalResults = z.object({goal: goal.optional(), variants: z.record(z.string(), variantResults).optional()});

export const credibilityInterval = z.object({lower: z.number().optional(), upper: z.number().optional()});

export const variantResult = z.object({variant: z.string().optional(), conversionRate: z.number().optional(), probability: z.number().optional(), expectedLoss: z.number().optional(), risk: z.number().optional(), medianGrowth: z.number().optional(), credibilityInterval: credibilityInterval.optional(), isControl: z.boolean().optional()});

export const sampleData = z.object({x: z.number().optional(), y: z.number().optional()});

export const sampleGroup = z.object({samples: z.object({empty: z.boolean().optional()}).and(z.record(z.string(), z.array(sampleData))).optional()});

export const differenceData = z.object({controlData: z.array(z.number()).optional(), testData: z.array(z.number()).optional(), differences: z.array(z.number()).optional(), relativeDifference: z.number().optional()});

export const quantilePair = z.object({quantile: z.number().optional(), formatted: z.number().optional()});

export const bayesianResult = z.object({value: z.number().optional(), results: z.array(variantResult).optional(), distributionPdfs: sampleGroup.optional(), differenceData: differenceData.optional(), quantiles: z.object({empty: z.boolean().optional()}).and(z.record(z.string(), quantilePair)).optional(), suggestedWinner: z.string().optional()});

export const experimentResults = z.object({sessions: totalSession.optional(), goals: z.record(z.string(), goalResults).optional(), bayesianResult: bayesianResult.optional()});

export const messageEntity = z.object({message: z.string().optional()});

export const pagination = z.object({currentPage: z.number().int().optional(), perPage: z.number().int().optional(), totalEntries: z.number().int().optional()});

export const responseEntityExperimentResults = z.object({errors: z.array(errorEntity).optional(), entity: experimentResults.optional(), messages: z.array(messageEntity).optional(), i18nMessagesMap: z.record(z.string(), z.string()).optional(), permissions: z.array(z.string()).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 /api/v1/experiments/{id}/results
 */
export const getApiApiV1ExperimentsIdResults = async (args: GetApiApiV1ExperimentsIdResultsArgs, options: GetApiApiV1ExperimentsIdResultsOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/experiments/${encodeURIComponent(String(args.id))}/results${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(responseEntityExperimentResults, await res.json())
};