import {z} from 'zod'

export type GetApiCiOwnerRepositoriesRepositoryTestsStatsStatArgs = {stat: 'total_tests' | 'healthy_tests' | 'broken_tests' | 'flaky_tests' | 'failed_executions' | 'median_test_run_duration', repository: string, owner: string, test_name?: (Array<string> | null) | undefined, test_name_exclude?: (Array<string> | null) | undefined, job_name?: (Array<string> | null) | undefined, job_name_exclude?: (Array<string> | null) | undefined, pipeline_name?: (Array<string> | null) | undefined, pipeline_name_exclude?: (Array<string> | null) | undefined, failed_executions_impact?: (Array<'low' | 'medium' | 'high'> | null) | undefined, failed_executions_impact_exclude?: (Array<'low' | 'medium' | 'high'> | null) | undefined, branch_name?: (string | null) | undefined};

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

export const testStatBucket = z.object({start: z.string(), end: z.string(), value: z.number().int()});

export const getTestStatResponse = z.object({stat: z.enum(["total_tests", "healthy_tests", "broken_tests", "flaky_tests", "failed_executions", "median_test_run_duration"]), value: z.number().int(), value_over_time: z.array(testStatBucket)});

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 a single test stat as a time series
 * 
 * GET /ci/{owner}/repositories/{repository}/tests/stats/{stat}
 * 
 * Also accepts auth: MergifyTokenBearerAuth, GitHubTokenBearerAuth
 */
export const getApiCiOwnerRepositoriesRepositoryTestsStatsStat = async (args: GetApiCiOwnerRepositoriesRepositoryTestsStatsStatArgs, options: GetApiCiOwnerRepositoriesRepositoryTestsStatsStatOptions) => {
const {baseUrl, fetch: fetchFn = fetch, AdminApplicationKey} = options ?? {}

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

for (const item of args.test_name ?? []) query.append("test_name", String(item))
for (const item of args.test_name_exclude ?? []) query.append("test_name_exclude", String(item))
for (const item of args.job_name ?? []) query.append("job_name", String(item))
for (const item of args.job_name_exclude ?? []) query.append("job_name_exclude", String(item))
for (const item of args.pipeline_name ?? []) query.append("pipeline_name", String(item))
for (const item of args.pipeline_name_exclude ?? []) query.append("pipeline_name_exclude", String(item))
for (const item of args.failed_executions_impact ?? []) query.append("failed_executions_impact", String(item))
for (const item of args.failed_executions_impact_exclude ?? []) query.append("failed_executions_impact_exclude", String(item))
if (args.branch_name != null) query.append("branch_name", String(args.branch_name))
if (AdminApplicationKey !== undefined) headers.set('authorization', `Bearer ${AdminApplicationKey}`)

const url = `${baseUrl.replace(/\/+$/, '')}/ci/${encodeURIComponent(String(args.owner))}/repositories/${encodeURIComponent(String(args.repository))}/tests/stats/${encodeURIComponent(String(args.stat))}${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(getTestStatResponse, await res.json())
};