//! RED Tests for TDG --with-git-context CLI flag
//!
//! Sprint 65 Phase 2: CLI integration tests

#[cfg(test)]
mod tests {
    use crate::cli::TdgOutputFormat;
    use std::path::PathBuf;

    // Helper: Get repository root
    fn get_repo_root() -> PathBuf {
        let manifest_dir = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
        let mut current = manifest_dir.clone();
        loop {
            let git_dir = current.join(".git");
            if git_dir.exists() && git_dir.join("HEAD").exists() {
                return current;
            }
            if !current.pop() {
                return manifest_dir.parent().unwrap().to_path_buf();
            }
        }
    }

    // GREEN TEST 1: TdgCommandConfig should have with_git_context field
    #[test]
    fn test_tdg_command_config_has_with_git_context_field() {
        // Arrange
        use crate::cli::handlers::tdg_handlers::TdgCommandConfig;

        let config = TdgCommandConfig {
            path: PathBuf::from("."),
            command: None,
            format: TdgOutputFormat::Table,
            config: None,
            quiet: false,
            include_components: false,
            min_grade: None,
            output: None,
            with_git_context: true, // Sprint 65
            explain: false,         // Issue #78
            threshold: 10,          // Issue #78
            baseline: None,         // Issue #78
        };

        // Act & Assert
        assert!(
            config.with_git_context,
            "Should have with_git_context field"
        );
    }

    // GREEN TEST 2: TdgCommandConfig with_git_context defaults to false
    #[test]
    fn test_tdg_command_config_git_context_defaults_false() {
        // Arrange
        use crate::cli::handlers::tdg_handlers::TdgCommandConfig;

        let config = TdgCommandConfig {
            path: PathBuf::from("."),
            command: None,
            format: TdgOutputFormat::Table,
            config: None,
            quiet: false,
            include_components: false,
            min_grade: None,
            output: None,
            with_git_context: false, // Should default to false (backward compat)
            explain: false,          // Issue #78
            threshold: 10,           // Issue #78
            baseline: None,          // Issue #78
        };

        // Act & Assert
        assert!(!config.with_git_context, "Should default to false");
    }

    // RED TEST 3: Analyzer should extract git context when flag enabled
    #[test]
    #[should_panic(expected = "not implemented")]
    fn test_analyzer_extracts_git_context_when_enabled() {
        // Arrange
        let repo_path = get_repo_root();
        let _test_file = repo_path.join("server/src/lib.rs");

        // Act: Analyze with with_git_context = true
        // This will be implemented in GREEN phase
        unimplemented!("Need to implement git context extraction in analyzer");

        // Assert
        // Result should have git_context populated
    }

    // RED TEST 4: Analyzer should NOT extract git context when flag disabled
    #[test]
    #[should_panic(expected = "not implemented")]
    fn test_analyzer_skips_git_context_when_disabled() {
        // Arrange
        let repo_path = get_repo_root();
        let _test_file = repo_path.join("server/src/lib.rs");

        // Act: Analyze with with_git_context = false (default)
        // This will be implemented in GREEN phase
        unimplemented!("Need to implement default behavior (no git context)");

        // Assert
        // Result should have git_context = None
    }

    // RED TEST 5: Git context should be shown in table format output
    #[test]
    #[should_panic(expected = "not implemented")]
    fn test_table_output_shows_git_context() {
        // Arrange
        let _repo_path = get_repo_root();

        // Act: Run pmat tdg with --with-git-context --format table
        // This will be implemented in GREEN phase
        unimplemented!("Need to implement table output with git context");

        // Assert
        // Output should contain:
        // - "Git Context:"
        // - "Commit:"
        // - "Branch:"
        // - "Author:"
    }

    // RED TEST 6: Git context should be included in JSON output
    #[test]
    #[should_panic(expected = "not implemented")]
    fn test_json_output_includes_git_context() {
        // Arrange
        let _repo_path = get_repo_root();

        // Act: Run pmat tdg with --with-git-context --format json
        // This will be implemented in GREEN phase
        unimplemented!("Need to implement JSON output with git context");

        // Assert
        // JSON should have "git_context" field with:
        // - commit_sha
        // - branch
        // - author_name
        // - author_email
    }

    // RED TEST 7: --no-git-context flag should explicitly disable
    #[test]
    #[should_panic(expected = "not implemented")]
    fn test_no_git_context_flag_disables_extraction() {
        // Arrange
        let _repo_path = get_repo_root();

        // Act: Run pmat tdg with --no-git-context
        // This will be implemented in GREEN phase
        unimplemented!("Need to implement --no-git-context flag");

        // Assert
        // Result should have git_context = None even in git repo
    }

    // RED TEST 8: Git context extraction should be fast (<100ms overhead)
    #[test]
    #[should_panic(expected = "not implemented")]
    fn test_git_context_extraction_performance() {
        // Arrange
        let repo_path = get_repo_root();
        let _test_file = repo_path.join("server/src/lib.rs");

        // Act: Time the git context extraction
        unimplemented!("Need to implement performance test");

        // Assert
        // Git context extraction should add <100ms overhead
    }

    // RED TEST 9: Git context should work with non-git directories
    #[test]
    #[should_panic(expected = "not implemented")]
    fn test_git_context_graceful_in_non_git_dir() {
        use tempfile::TempDir;

        // Arrange: Create temp directory (not a git repo)
        let _temp_dir = TempDir::new().unwrap();

        // Act: Run pmat tdg with --with-git-context in non-git dir
        unimplemented!("Need to implement graceful handling of non-git dirs");

        // Assert
        // Should complete successfully with git_context = None
        // Should NOT error
    }

    // RED TEST 10: Git context in dirty working directory
    #[test]
    #[should_panic(expected = "not implemented")]
    fn test_git_context_in_dirty_working_dir() {
        // Arrange
        let _repo_path = get_repo_root();

        // Act: Run pmat tdg with --with-git-context
        // (Working directory may have uncommitted changes)
        unimplemented!("Need to implement dirty dir handling");

        // Assert
        // Git context should still be extracted
        // is_clean field should reflect actual state
    }
}
