import {z} from 'zod'

export type GetApiProcessInstancesIdArgs = {processInstanceId: string, detailed?: boolean | undefined};

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

export const exceptionDTO = z.object({scopeId: z.string().optional(), scopeType: z.string().optional(), timestamp: z.string().optional(), message: z.string().optional(), stacktrace: z.string().optional()});

export const exceptionInfoDTO = z.object({exceptions: z.array(exceptionDTO).optional()});

export const request = z.object({url: z.string().optional(), method: z.string().optional(), headers: z.record(z.string(), z.array(z.string())).optional(), body: z.string().optional()});

export const response = z.object({statusCode: z.number().int().optional(), headers: z.record(z.string(), z.array(z.string())).optional(), body: z.string().optional()});

export const service = z.object({key: z.string().optional(), operation: z.string().optional()});

export const restExecutionDTO = z.object({scopeId: z.string().optional(), scopeType: z.string().optional(), timestamp: z.string().optional(), request: request.optional(), response: response.optional(), service: service.optional(), mocked: z.boolean().optional()});

export const restExecutionInfoDTO = z.object({restExecutions: z.array(restExecutionDTO).optional()});

export const processInstanceInfoDTO = z.object({id: z.string().optional(), name: z.string().optional(), description: z.string().optional(), tenantId: z.string().optional(), startTime: z.string().optional(), startUserId: z.string().optional(), startUserName: z.string().optional(), definitionId: z.string().optional(), definitionName: z.string().optional(), definitionKey: z.string().optional(), definitionVersion: z.number().int().optional(), latestDefinition: z.boolean().optional(), exceptionInfo: exceptionInfoDTO.optional(), restExecutionInfo: restExecutionInfoDTO.optional(), applicationName: z.string().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 process instance information
 * 
 * GET /process-instances/{id}
 */
export const getApiProcessInstancesId = async (args: GetApiProcessInstancesIdArgs, options?: GetApiProcessInstancesIdOptions) => {
const {baseUrl = "http://localhost:8090/inspect-api", fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

if (args.detailed != null) query.append("detailed", String(args.detailed))
if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/process-instances/${encodeURIComponent(String(args.id))}${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(processInstanceInfoDTO, await res.json())
};