//! RED Tests for MCP analyze_tdg tool with git context
//!
//! Sprint 65 Phase 2B: MCP tool integration tests

#[cfg(test)]
mod tests {
    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();
            }
        }
    }

    // RED TEST 1: analyze_tdg should accept with_git_context parameter
    #[test]
    #[should_panic(expected = "not implemented")]
    fn test_analyze_tdg_accepts_with_git_context_param() {
        // Arrange
        let _repo_path = get_repo_root();

        // Act: Call analyze_tdg with with_git_context = true
        // This will be implemented in GREEN phase
        unimplemented!("Need to add with_git_context parameter to analyze_tdg");

        // Assert
        // Function should accept the parameter without compilation error
    }

    // RED TEST 2: analyze_tdg with git context should include git_context in JSON response
    #[test]
    #[should_panic(expected = "not implemented")]
    fn test_analyze_tdg_includes_git_context_in_response() {
        // Arrange
        let _repo_path = get_repo_root();

        // Act: Call analyze_tdg with with_git_context = true
        // This will be implemented in GREEN phase
        unimplemented!("Need to implement git context in MCP response");

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

    // RED TEST 3: analyze_tdg without git context should NOT include git_context field
    #[test]
    #[should_panic(expected = "not implemented")]
    fn test_analyze_tdg_omits_git_context_when_disabled() {
        // Arrange
        let _repo_path = get_repo_root();

        // Act: Call analyze_tdg with with_git_context = false (or None)
        // This will be implemented in GREEN phase
        unimplemented!("Need to implement conditional git context inclusion");

        // Assert
        // Response JSON should NOT have "git_context" field
    }

    // RED TEST 4: analyze_tdg in non-git directory should gracefully handle no git context
    #[test]
    #[should_panic(expected = "not implemented")]
    fn test_analyze_tdg_graceful_in_non_git_dir() {
        use tempfile::TempDir;

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

        // Act: Call analyze_tdg with with_git_context = true
        unimplemented!("Need to implement graceful handling of non-git dirs");

        // Assert
        // Should complete successfully with git_context = null
        // Should NOT error
    }

    // RED TEST 5: compare_tdg should accept with_git_context parameter
    #[test]
    #[should_panic(expected = "not implemented")]
    fn test_compare_tdg_accepts_with_git_context_param() {
        // Arrange
        let _repo_path = get_repo_root();

        // Act: Call compare_tdg with with_git_context = true
        unimplemented!("Need to add with_git_context parameter to compare_tdg");

        // Assert
        // Function should accept the parameter
    }

    // RED TEST 6: compare_tdg should include git context for both files
    #[test]
    #[should_panic(expected = "not implemented")]
    fn test_compare_tdg_includes_both_git_contexts() {
        // Arrange
        let _repo_path = get_repo_root();

        // Act: Call compare_tdg with with_git_context = true
        unimplemented!("Need to implement git context in comparison");

        // Assert
        // Response should have git_context for source1 and source2
    }

    // RED TEST 7: MCP tool parameter schema should include with_git_context
    #[test]
    #[should_panic(expected = "not implemented")]
    fn test_mcp_schema_includes_with_git_context() {
        // Arrange
        // Check the MCP tool schema definition

        // Act: Get tool schema
        unimplemented!("Need to add with_git_context to MCP schema");

        // Assert
        // Schema should define with_git_context as optional boolean parameter
    }

    // RED TEST 8: tdg_analyze_with_storage should support git context
    #[test]
    #[should_panic(expected = "not implemented")]
    fn test_tdg_analyze_with_storage_supports_git_context() {
        // Arrange
        let _repo_path = get_repo_root();

        // Act: Call tdg_analyze_with_storage with git context
        unimplemented!("Need to add git context support to storage analysis");

        // Assert
        // Stored record should include git context
    }
}
