import {z} from 'zod'

export type MockCreate = {slug: string, name: string, description?: (string | null) | undefined, default_status?: number | undefined, default_response_body?: ({[key: string]: unknown} | Array<unknown> | null) | undefined, is_enabled?: boolean | undefined};

export type CreateApiV1MocksArgs = {body: MockCreate};

export type CreateApiV1MocksOptions = {baseUrl: string, APIKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const mockScenarioResponse = z.object({id: z.string(), mock_id: z.string(), name: z.string(), priority: z.number().int(), match_method: z.string(), match_path_pattern: z.string().nullable(), match_headers: z.record(z.string(), z.unknown()), match_query: z.record(z.string(), z.unknown()), match_body: z.record(z.string(), z.unknown()), response_status: z.number().int(), response_headers: z.record(z.string(), z.unknown()), response_body: z.union([z.record(z.string(), z.unknown()), z.array(z.unknown())]), delay_ms: z.number().int(), is_enabled: z.boolean(), created_at: z.string(), updated_at: z.string()});

export const mockResponse = z.object({id: z.string(), organization_id: z.string(), slug: z.string(), name: z.string(), description: z.string().nullable(), default_status: z.number().int(), default_response_body: z.union([z.record(z.string(), z.unknown()), z.array(z.unknown())]).nullable(), is_enabled: z.boolean(), created_by: z.string().nullable(), created_at: z.string(), updated_at: z.string(), public_url_path: z.string(), scenarios: z.array(mockScenarioResponse).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
};

/**
 * Create a mock
 * 
 * POST /v1/mocks
 */
export const createApiV1Mocks = async (args: CreateApiV1MocksArgs, options: CreateApiV1MocksOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

if (APIKeyHeader !== undefined) headers.set("x-api-key", APIKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/mocks${query.size > 0 ? `?${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(mockResponse, await res.json())
};