// EXTREME TDD: Red Team CLI Handler Tests (RED Phase)
//
// Test-Driven Development for `pmat red-team analyze` command handler
// Specification: Section 4.2 - CLI Interface

use pmat::red_team::{
    ClaimExtractor, CommitInfo, EvidenceGatherer, IntentClassifier, RepositoryContext, TestChanges,
};

// RED Test 1: Handler analyzes commit message and detects hallucination
#[test]
fn test_handler_analyze_commit_message() {
    // Simulate input: commit message
    let commit_message = "feat: All tests passing";

    // Expected flow:
    // 1. Extract claims from message
    // 2. Gather evidence (mock context)
    // 3. Report hallucination if evidence contradicts

    let extractor = ClaimExtractor::new();
    let claims = extractor.extract(commit_message);

    assert_eq!(claims.len(), 1);
    assert_eq!(claims[0].text.to_lowercase(), "all tests passing");

    // Mock: 5 tests are ignored
    let context = RepositoryContext::new_mock().with_test_results(true, 5);

    let gatherer = EvidenceGatherer::new();
    let evidence = gatherer.gather_evidence(&claims[0], &context);

    // Should find contradicting evidence
    assert!(evidence.iter().any(|e| !e.supports_claim));
}

// RED Test 2: Handler analyzes two commits and classifies intent
#[test]
fn test_handler_analyze_commit_pair() {
    let original = CommitInfo {
        message: "feat: Complete feature X".to_string(),
        timestamp_seconds: 1000,
        modified_files: vec!["src/feature_x.rs".to_string()],
        issue_number: None,
        issue_created_timestamp: None,
        branch: "feature/x".to_string(),
        test_changes: TestChanges {
            added_tests: 0,
            fixed_tests: 0,
            modified_test_files: vec![],
        },
    };

    let followup = CommitInfo {
        message: "fix: Bug in feature X".to_string(),
        timestamp_seconds: 1000 + (100 * 3600),
        modified_files: vec!["src/feature_x.rs".to_string()],
        issue_number: Some(42),
        issue_created_timestamp: Some(5000),
        branch: "hotfix/feature-x".to_string(),
        test_changes: TestChanges {
            added_tests: 0,
            fixed_tests: 3,
            modified_test_files: vec!["tests/feature_x_tests.rs".to_string()],
        },
    };

    let classifier = IntentClassifier::new();
    let classification = classifier.classify(&original, &followup);

    assert_eq!(
        classification.intent,
        pmat::red_team::CommitIntent::HallucinationFix
    );
    assert!(classification.confidence > 0.7);
}

// RED Test 3: Handler output formatting (human-readable report)
#[test]
fn test_handler_generates_human_readable_report() {
    let commit_message = "feat: All tests passing";

    let extractor = ClaimExtractor::new();
    let claims = extractor.extract(commit_message);

    // Mock: contradicting evidence
    let context = RepositoryContext::new_mock()
        .with_test_results(false, 5)
        .with_subsequent_commits(vec!["fix: tests".to_string()]);

    let gatherer = EvidenceGatherer::new();
    let evidence = gatherer.gather_evidence(&claims[0], &context);

    // Expected report structure (verified in handler implementation):
    // 🔴 HALLUCINATION DETECTED
    //
    // Claim: "all tests passing"
    // Evidence:
    //   1. Test Execution: 5 tests ignored (confidence: X.XX)
    //   2. Git History: 1 subsequent fix found (confidence: X.XX)
    // Verdict: POTENTIAL HALLUCINATION

    // Verify evidence exists and can be formatted
    assert!(evidence.len() >= 2);
    assert!(evidence.iter().all(|e| !e.details.is_empty()));
    assert!(evidence
        .iter()
        .all(|e| e.confidence >= 0.0 && e.confidence <= 1.0));
}

// RED Test 4: Handler supports multiple output formats
#[test]
fn test_handler_supports_output_formats() {
    // Test that handler can output in different formats
    // Formats: text (default), json, junit

    let commit_message = "feat: Complete migration to libsql";

    let extractor = ClaimExtractor::new();
    let claims = extractor.extract(commit_message);

    assert_eq!(claims.len(), 1);

    // Mock: old system still referenced
    let context = RepositoryContext::new_mock().with_code_grep_results("sled", 15);

    let gatherer = EvidenceGatherer::new();
    let evidence = gatherer.gather_evidence(&claims[0], &context);

    // Should detect migration incompleteness
    assert!(evidence.iter().any(|e| !e.supports_claim));
}

// RED Test 5: Handler respects confidence threshold
#[test]
fn test_handler_respects_confidence_threshold() {
    let commit_message = "fix: Minor improvements";

    let extractor = ClaimExtractor::new();
    let claims = extractor.extract(commit_message);

    // "Minor improvements" should not extract any testable claims
    assert_eq!(claims.len(), 0);

    // Handler should not flag commits with no testable claims
    // (Even if there's no confidence threshold applied)
}

// RED Test 6: Handler can analyze git repository commits
#[test]
#[ignore] // Requires git repository access
fn test_handler_analyzes_git_commits() {
    // This test would analyze real git commits
    // Using git2 or similar library
    //
    // Example flow:
    // 1. Open git repository
    // 2. Get commits since date
    // 3. Analyze each commit message
    // 4. Generate report

    // Placeholder for future implementation
}

// RED Test 7: Handler exit codes
#[test]
fn test_handler_exit_codes() {
    // Handler should return appropriate exit codes:
    // 0 = No hallucinations found
    // 1 = Hallucinations found (if --fail-on-hallucination)
    // 2 = Error in execution

    let commit_message = "test: Add new tests";

    let extractor = ClaimExtractor::new();
    let claims = extractor.extract(commit_message);

    // "Add new tests" is a factual statement, not a claim
    assert_eq!(claims.len(), 0);

    // Handler should exit 0 (no hallucinations)
}

// RED Test 8: Handler configuration loading
#[test]
fn test_handler_loads_configuration() {
    // Handler should support loading config from .pmat/red-team.toml
    // Config options:
    // - semantic_entropy_threshold
    // - categories
    // - validation settings
    // - reporting format

    // This test verifies config structure exists
    // (Implementation will load from file system)
}
