/**
 * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

import type {AggregatedResult, SerializableError, TestResult} from './types';

export const makeEmptyAggregatedTestResult = (): AggregatedResult => ({
  numFailedTestSuites: 0,
  numFailedTests: 0,
  numPassedTestSuites: 0,
  numPassedTests: 0,
  numPendingTestSuites: 0,
  numPendingTests: 0,
  numRuntimeErrorTestSuites: 0,
  numTodoTests: 0,
  numTotalTestSuites: 0,
  numTotalTests: 0,
  openHandles: [],
  snapshot: {
    added: 0,
    didUpdate: false, // is set only after the full run
    failure: false,
    filesAdded: 0,
    // combines individual test results + removed files after the full run
    filesRemoved: 0,
    filesRemovedList: [],
    filesUnmatched: 0,
    filesUpdated: 0,
    matched: 0,
    total: 0,
    unchecked: 0,
    uncheckedKeysByFile: [],
    unmatched: 0,
    updated: 0,
  },
  startTime: 0,
  success: true,
  testResults: [],
  wasInterrupted: false,
});

export const buildFailureTestResult = (
  testPath: string,
  err: SerializableError,
): TestResult => ({
  console: undefined,
  displayName: undefined,
  failureMessage: null,
  leaks: false,
  numFailingTests: 0,
  numPassingTests: 0,
  numPendingTests: 0,
  numTodoTests: 0,
  openHandles: [],
  perfStats: {
    end: 0,
    runtime: 0,
    slow: false,
    start: 0,
  },
  skipped: false,
  snapshot: {
    added: 0,
    fileDeleted: false,
    matched: 0,
    unchecked: 0,
    uncheckedKeys: [],
    unmatched: 0,
    updated: 0,
  },
  testExecError: err,
  testFilePath: testPath,
  testResults: [],
});

// Add individual test result to an aggregated test result
export const addResult = (
  aggregatedResults: AggregatedResult,
  testResult: TestResult,
): void => {
  // `todos` are new as of Jest 24, and not all runners return it.
  // Set it to `0` to avoid `NaN`
  if (!testResult.numTodoTests) {
    testResult.numTodoTests = 0;
  }

  aggregatedResults.testResults.push(testResult);
  aggregatedResults.numTotalTests +=
    testResult.numPassingTests +
    testResult.numFailingTests +
    testResult.numPendingTests +
    testResult.numTodoTests;
  aggregatedResults.numFailedTests += testResult.numFailingTests;
  aggregatedResults.numPassedTests += testResult.numPassingTests;
  aggregatedResults.numPendingTests += testResult.numPendingTests;
  aggregatedResults.numTodoTests += testResult.numTodoTests;

  if (testResult.testExecError) {
    aggregatedResults.numRuntimeErrorTestSuites++;
  }

  if (testResult.skipped) {
    aggregatedResults.numPendingTestSuites++;
  } else if (testResult.numFailingTests > 0 || testResult.testExecError) {
    aggregatedResults.numFailedTestSuites++;
  } else {
    aggregatedResults.numPassedTestSuites++;
  }

  // Snapshot data
  if (testResult.snapshot.added) {
    aggregatedResults.snapshot.filesAdded++;
  }
  if (testResult.snapshot.fileDeleted) {
    aggregatedResults.snapshot.filesRemoved++;
  }
  if (testResult.snapshot.unmatched) {
    aggregatedResults.snapshot.filesUnmatched++;
  }
  if (testResult.snapshot.updated) {
    aggregatedResults.snapshot.filesUpdated++;
  }

  aggregatedResults.snapshot.added += testResult.snapshot.added;
  aggregatedResults.snapshot.matched += testResult.snapshot.matched;
  aggregatedResults.snapshot.unchecked += testResult.snapshot.unchecked;
  if (
    testResult.snapshot.uncheckedKeys != null &&
    testResult.snapshot.uncheckedKeys.length > 0
  ) {
    aggregatedResults.snapshot.uncheckedKeysByFile.push({
      filePath: testResult.testFilePath,
      keys: testResult.snapshot.uncheckedKeys,
    });
  }

  aggregatedResults.snapshot.unmatched += testResult.snapshot.unmatched;
  aggregatedResults.snapshot.updated += testResult.snapshot.updated;
  aggregatedResults.snapshot.total +=
    testResult.snapshot.added +
    testResult.snapshot.matched +
    testResult.snapshot.unmatched +
    testResult.snapshot.updated;
};

export const createEmptyTestResult = (): TestResult => ({
  leaks: false, // That's legacy code, just adding it as needed for typing
  numFailingTests: 0,
  numPassingTests: 0,
  numPendingTests: 0,
  numTodoTests: 0,
  openHandles: [],
  perfStats: {
    end: 0,
    runtime: 0,
    slow: false,
    start: 0,
  },
  skipped: false,
  snapshot: {
    added: 0,
    fileDeleted: false,
    matched: 0,
    unchecked: 0,
    uncheckedKeys: [],
    unmatched: 0,
    updated: 0,
  },
  testFilePath: '',
  testResults: [],
});
