import {z} from 'zod'

export type GetApiV1SettingsSettingIdPredefinedVariationsArgs = {settingId: number};

export type GetApiV1SettingsSettingIdPredefinedVariationsOptions = {baseUrl?: string | undefined, Basic?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const settingType = z.enum(["boolean", "string", "int", "double"]);

export const predefinedVariationValueModel = z.object({boolValue: z.boolean().nullable(), stringValue: z.string().nullable(), intValue: z.number().int().nullable(), doubleValue: z.number().nullable()});

export const predefinedVariationUsageModel = z.object({settingId: z.number().int(), environmentId: z.string()});

export const predefinedVariationChangeRequestUsageModel = z.object({changeRequestId: z.number().int(), changeRequestTitle: z.string(), settingId: z.number().int(), environmentId: z.string()});

export const predefinedVariationWithUsagesModel = z.object({value: predefinedVariationValueModel, name: z.string().max(255).nullable(), hint: z.string().max(1000).nullable(), predefinedVariationId: z.string(), usages: z.array(predefinedVariationUsageModel), usagesInOtherEnvironments: z.number().int(), changeRequestUsages: z.array(predefinedVariationChangeRequestUsageModel), changeRequestUsagesInOtherEnvironments: z.number().int()});

export const environmentAccessType = z.enum(["full", "readOnly", "none"]);

export const predefinedVariationEnvironmentModel = z.object({environmentId: z.string(), name: z.string(), accessType: environmentAccessType});

export const predefinedVariationsWithUsagesModel = z.object({settingKey: z.string(), settingType: settingType, predefinedVariations: z.array(predefinedVariationWithUsagesModel), environments: z.array(predefinedVariationEnvironmentModel), maxPredefinedVariations: z.number().int()});

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 predefined variations
 * 
 * GET /v1/settings/{settingId}/predefined-variations
 */
export const getApiV1SettingsSettingIdPredefinedVariations = async (args: GetApiV1SettingsSettingIdPredefinedVariationsArgs, options?: GetApiV1SettingsSettingIdPredefinedVariationsOptions) => {
const {baseUrl = "https://api.configcat.com", fetch: fetchFn = fetch, Basic} = options ?? {}

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

if (Basic !== undefined) headers.set('authorization', `Basic ${btoa(`${Basic.username}:${Basic.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/settings/${encodeURIComponent(String(args.settingId))}/predefined-variations${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(predefinedVariationsWithUsagesModel, await res.json())
};