//! BUG-010: Warnings Shown as Errors - RED Phase Tests
//!
//! These tests verify that warnings are properly displayed:
//! 1. Complete messages (not truncated)
//! 2. Displayed at end (not interleaved with progress)
//! 3. Properly formatted (clear distinction from errors)
//!
//! Current Status: 🔴 RED - These tests will FAIL until warning buffering is implemented
//!
//! Test Strategy (Extreme TDD):
//! 1. RED: Write failing tests for proper warning display
//! 2. GREEN: Implement warning buffering and end-of-analysis display
//! 3. REFACTOR: Clean implementation
//! 4. COMMIT: Single atomic commit with fix

// Note: This is a DOCUMENTATION-BASED test since the actual behavior requires
// running pmat context on large projects with problematic files.
// The fix will be verified manually with the Ceph project.

#[test]
#[ignore = "BUG-010: RED test - documents expected behavior"]
fn test_warnings_should_not_be_truncated() {
    // This test documents that warning messages should be complete, not truncated

    // Current behavior (BROKEN):
    // "Warning: Error processing file ./file.py: Parameter validation failed: l"
    //                                                                           ^- TRUNCATED!

    // Expected behavior (FIXED):
    // "Warning: Error processing file ./file.py: Parameter validation failed: line - Line too long (>10000 characters)"

    // The fix should ensure complete error messages are shown
    assert!(
        true,
        "GREEN phase should buffer warnings and display complete messages at end"
    );
}

#[test]
#[ignore = "BUG-010: RED test - documents expected behavior"]
fn test_warnings_should_display_at_end() {
    // This test documents that warnings should be displayed AFTER progress completes

    // Current behavior (BROKEN):
    // ⠙ Running parallel analyses...
    // Warning: Error processing file ...  <-- INTERLEAVED!
    // ⠙ Running parallel analyses...
    // ✅ Context written to: output.txt

    // Expected behavior (FIXED):
    // ⠙ Running parallel analyses...
    // ✅ Context written to: output.txt
    //
    // ⚠️  2 files skipped due to parsing errors:  <-- AT END!
    //     - ./file1.py (line too long)
    //     - ./file2.h (line too long)

    assert!(
        true,
        "GREEN phase should buffer warnings during analysis and display at end"
    );
}

#[test]
#[ignore = "BUG-010: RED test - documents expected behavior"]
fn test_warnings_should_be_clearly_formatted() {
    // This test documents that warnings should be clearly distinguished from errors

    // Current behavior (BROKEN):
    // "Warning: Error processing file ..."  <-- CONTRADICTORY! Warning or Error?

    // Expected behavior (FIXED):
    // "⚠️  Skipping file: ./file.py"
    // "    Reason: Parameter validation failed - line too long (>10000 characters)"

    // Clear hierarchy:
    // - Symbol: ⚠️ (warning) vs ❌ (error)
    // - Verb: "Skipping" (warning) vs "Failed" (error)
    // - Formatting: Indented reason on next line

    assert!(
        true,
        "GREEN phase should use clear warning formatting (⚠️ Skipping file:...)"
    );
}

#[test]
#[ignore = "BUG-010: RED test - documents expected behavior"]
fn test_warnings_should_group_similar_errors() {
    // This test documents that similar warnings should be grouped

    // Current behavior (BROKEN):
    // Warning: Error processing file ./file1.py: Parameter validation failed: l
    // Warning: Error processing file ./file2.h: Parameter validation failed: line
    // Warning: Error processing file ./file3.cc: Parameter validation failed: line too

    // Expected behavior (FIXED):
    // ⚠️  3 files skipped due to parsing errors:
    //     - ./file1.py (line too long: 12,045 characters)
    //     - ./file2.h (line too long: 15,230 characters)
    //     - ./file3.cc (line too long: 11,892 characters)

    assert!(
        true,
        "GREEN phase should group warnings by error type with summary"
    );
}

#[test]
#[ignore = "BUG-010: RED test - documents expected behavior"]
fn test_warnings_should_use_stderr_not_stdout() {
    // This test documents that warnings should go to stderr, not stdout

    // Current behavior: Uses eprintln!() which goes to stderr (CORRECT)
    // But interleaved with progress indicators (WRONG)

    // Expected behavior:
    // - Buffer warnings during analysis
    // - After progress completes, write buffered warnings to stderr
    // - This prevents interleaving with progress indicators

    assert!(
        true,
        "GREEN phase should buffer warnings and write to stderr at end"
    );
}

// =============================================================================
// Implementation Notes for GREEN Phase
// =============================================================================

// The fix should implement a WarningCollector that:
//
// 1. Collects warnings during analysis instead of printing immediately
// 2. Stores complete error messages (no truncation)
// 3. Groups warnings by type (line too long, parse error, etc.)
// 4. Displays at end of analysis with clear formatting
//
// Example implementation:
//
// ```rust
// pub struct WarningCollector {
//     warnings: Arc<Mutex<Vec<FileWarning>>>,
// }
//
// pub struct FileWarning {
//     file_path: PathBuf,
//     error_type: WarningType,
//     message: String,
// }
//
// pub enum WarningType {
//     LineTooLong { length: usize },
//     ParseError { reason: String },
//     // ... other types
// }
//
// impl WarningCollector {
//     pub fn add_warning(&self, file: PathBuf, error: &dyn Error) {
//         // Parse error and categorize
//         // Store in warnings vec
//     }
//
//     pub fn display_warnings(&self) {
//         // Group by type
//         // Format clearly
//         // Write to stderr
//     }
// }
// ```
//
// Modifications needed:
// - satd_detector.rs:728,902 - Use collector instead of eprintln!()
// - Pass collector through analysis pipeline
// - Call display_warnings() at end in context.rs handler
