1. <?php
  3. /**
  4. * Dry-run metadata assertion with verbose logging.
  5. *
  6. * @param array $metadata The metadata array to validate.
  7. * @param array $conditions An array of conditions to assert. Each condition is an associative array with keys:
  8. * 'key' (metadata key), 'operator' (e.g., 'exists', 'is', 'not_is', 'array_key_exists', 'is_array'),
  9. * 'value' (expected value or array).
  10. * @return bool True if all conditions are met, false otherwise.
  11. */
  12. function dryRunMetadataAssert(array $metadata, array $conditions): bool
  13. {
  14. $allConditionsMet = true;
  16. foreach ($conditions as $condition) {
  17. $key = $condition['key'];
  18. $operator = $condition['operator'];
  19. $value = $condition['value'];
  21. // Log the condition being checked.
  22. $logMessage = "Checking condition: Key={$key}, Operator={$operator}, Value={$value}\n";
  23. error_log($logMessage); // Use error_log for consistent logging
  25. switch ($operator) {
  26. case 'exists':
  27. if (!array_key_exists($key, $metadata)) {
  28. $logMessage = "Condition failed: Key '$key' does not exist.\n";
  29. error_log($logMessage);
  30. $allConditionsMet = false;
  31. break;
  32. }
  33. break;
  35. case 'is':
  36. if ($metadata[$key] !== $value) {
  37. $logMessage = "Condition failed: Key '$key' is not equal to '$value'.\n";
  38. error_log($logMessage);
  39. $allConditionsMet = false;
  40. break;
  41. }
  42. break;
  44. case 'not_is':
  45. if ($metadata[$key] === $value) {
  46. $logMessage = "Condition failed: Key '$key' is equal to '$value' (not 'not_is').\n";
  47. error_log($logMessage);
  48. $allConditionsMet = false;
  49. break;
  50. }
  51. break;
  53. case 'array_key_exists':
  54. if (!array_key_exists($key, $metadata)) {
  55. $logMessage = "Condition failed: Key '$key' does not exist.\n";
  56. error_log($logMessage);
  57. $allConditionsMet = false;
  58. break;
  59. }
  60. break;
  62. case 'is_array':
  63. if (!is_array($metadata[$key])) {
  64. $logMessage = "Condition failed: Key '$key' is not an array.\n";
  65. error_log($logMessage);
  66. $allConditionsMet = false;
  67. break;
  68. }
  69. break;
  72. default:
  73. $logMessage = "Unknown operator: {$operator}\n";
  74. error_log($logMessage);
  75. $allConditionsMet = false;
  76. break;
  77. }
  78. }
  80. return $allConditionsMet;
  81. }
  83. // Example usage (for testing)
  84. /*
  85. $metadata = [
  86. 'name' => 'Example',
  87. 'version' => '1.0',
  88. 'dependencies' => ['library1', 'library2'],
  89. 'enabled' => true
  90. ];
  92. $conditions = [
  93. ['key' => 'name', 'operator' => 'exists'],
  94. ['key' => 'version', 'operator' => 'is', 'value' => '1.0'],
  95. ['key' => 'dependencies', 'operator' => 'is_array'],
  96. ['key' => 'enabled', 'operator' => 'is'],
  97. ['key' => 'nonexistent_key', 'operator' => 'exists'] //This will fail
  98. ];
  100. $result = dryRunMetadataAssert($metadata, $conditions);
  102. if ($result) {
  103. echo "All conditions met.\n";
  104. } else {
  105. echo "One or more conditions failed.\n";
  106. }
  107. */
  109. ?>

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