#!/usr/bin/env python3
"""
Test progress reporting for deb-bootc-image-builder.

This module tests progress reporting functionality, including:
- Progress tracking
- Status updates
- Error reporting
- Debian-specific progress indicators
"""

import pytest
import os
import tempfile
import shutil
import json
import time
from unittest.mock import Mock, patch
import logging

# Configure logging
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)


class TestProgressReporting:
    """Test cases for progress reporting functionality."""

    def test_progress_initialization(self, work_dir):
        """Test progress tracking initialization."""
        # Initialize progress tracker
        progress = self._create_progress_tracker()
        
        assert progress["total_steps"] > 0
        assert progress["current_step"] == 0
        assert progress["status"] == "initialized"
        assert "start_time" in progress

    def test_progress_step_tracking(self, work_dir):
        """Test progress step tracking."""
        # Create progress tracker
        progress = self._create_progress_tracker()
        
        # Simulate step progression
        steps = [
            "filesystem_setup",
            "package_installation",
            "ostree_integration",
            "bootloader_configuration",
            "image_generation"
        ]
        
        for i, step in enumerate(steps):
            self._update_progress(progress, step, i + 1)
            
            assert progress["current_step"] == i + 1
            assert progress["current_operation"] == step
            assert progress["status"] == "in_progress"
            
            # Check progress percentage
            expected_percentage = ((i + 1) / len(steps)) * 100
            assert abs(progress["percentage"] - expected_percentage) < 0.1

    def test_progress_status_updates(self, work_dir):
        """Test progress status updates."""
        # Create progress tracker
        progress = self._create_progress_tracker()
        
        # Test status transitions
        statuses = ["initialized", "in_progress", "completed", "failed"]
        
        for status in statuses:
            self._set_progress_status(progress, status)
            assert progress["status"] == status
            
            # Check status-specific properties
            if status == "completed":
                assert progress["end_time"] is not None
                assert progress["percentage"] == 100.0
            elif status == "failed":
                assert progress["error"] is not None

    def test_debian_specific_progress_indicators(self, work_dir):
        """Test Debian-specific progress indicators."""
        # Create progress tracker
        progress = self._create_progress_tracker()
        
        # Test Debian-specific operations
        debian_operations = [
            "apt_update",
            "package_download",
            "package_installation",
            "initramfs_generation",
            "grub_configuration"
        ]
        
        for operation in debian_operations:
            self._add_debian_operation(progress, operation)
            assert operation in progress["debian_operations"]
        
        # Test Debian package progress
        package_progress = self._track_package_progress(progress, ["linux-image-amd64", "systemd", "ostree"])
        assert package_progress["total_packages"] == 3
        assert package_progress["installed_packages"] == 0

    def test_error_reporting(self, work_dir):
        """Test error reporting in progress tracking."""
        # Create progress tracker
        progress = self._create_progress_tracker()
        
        # Test error reporting
        error_message = "Package installation failed: network error"
        self._report_progress_error(progress, error_message)
        
        assert progress["status"] == "failed"
        assert progress["error"] == error_message
        assert progress["error_time"] is not None
        
        # Test error details
        error_details = {
            "operation": "package_installation",
            "step": 2,
            "timestamp": time.time()
        }
        self._add_error_details(progress, error_details)
        
        assert "error_details" in progress
        assert progress["error_details"]["operation"] == "package_installation"

    def test_progress_persistence(self, work_dir):
        """Test progress persistence and recovery."""
        # Create progress tracker
        progress = self._create_progress_tracker()
        
        # Update progress
        self._update_progress(progress, "filesystem_setup", 1)
        self._update_progress(progress, "package_installation", 2)
        
        # Save progress
        progress_file = os.path.join(work_dir, "progress.json")
        self._save_progress(progress, progress_file)
        
        # Load progress
        loaded_progress = self._load_progress(progress_file)
        
        # Verify persistence
        assert loaded_progress["current_step"] == 2
        assert loaded_progress["current_operation"] == "package_installation"
        assert loaded_progress["percentage"] == 40.0

    def test_progress_cleanup(self, work_dir):
        """Test progress cleanup and finalization."""
        # Create progress tracker
        progress = self._create_progress_tracker()
        
        # Complete all steps
        steps = ["filesystem_setup", "package_installation", "ostree_integration", "bootloader_configuration", "image_generation"]
        for i, step in enumerate(steps):
            self._update_progress(progress, step, i + 1)
        
        # Finalize progress
        self._finalize_progress(progress)
        
        assert progress["status"] == "completed"
        assert progress["end_time"] is not None
        assert progress["duration"] > 0
        assert progress["percentage"] == 100.0

    def _create_progress_tracker(self):
        """Create a progress tracker instance."""
        return {
            "total_steps": 5,
            "current_step": 0,
            "current_operation": None,
            "status": "initialized",
            "start_time": time.time(),
            "end_time": None,
            "percentage": 0.0,
            "error": None,
            "error_time": None,
            "debian_operations": [],
            "package_progress": {}
        }

    def _update_progress(self, progress, operation, step):
        """Update progress tracking."""
        progress["current_step"] = step
        progress["current_operation"] = operation
        progress["status"] = "in_progress"
        progress["percentage"] = (step / progress["total_steps"]) * 100

    def _set_progress_status(self, progress, status):
        """Set progress status."""
        progress["status"] = status
        
        if status == "completed":
            progress["end_time"] = time.time()
            progress["percentage"] = 100.0
        elif status == "failed":
            progress["error_time"] = time.time()

    def _add_debian_operation(self, progress, operation):
        """Add Debian-specific operation to progress."""
        if "debian_operations" not in progress:
            progress["debian_operations"] = []
        progress["debian_operations"].append(operation)

    def _track_package_progress(self, progress, packages):
        """Track package installation progress."""
        package_progress = {
            "total_packages": len(packages),
            "installed_packages": 0,
            "failed_packages": [],
            "current_package": None
        }
        progress["package_progress"] = package_progress
        return package_progress

    def _report_progress_error(self, progress, error_message):
        """Report progress error."""
        progress["status"] = "failed"
        progress["error"] = error_message
        progress["error_time"] = time.time()

    def _add_error_details(self, progress, error_details):
        """Add detailed error information."""
        progress["error_details"] = error_details

    def _save_progress(self, progress, file_path):
        """Save progress to file."""
        with open(file_path, 'w') as f:
            json.dump(progress, f, indent=2)

    def _load_progress(self, file_path):
        """Load progress from file."""
        with open(file_path, 'r') as f:
            return json.load(f)

    def _finalize_progress(self, progress):
        """Finalize progress tracking."""
        progress["status"] = "completed"
        progress["end_time"] = time.time()
        progress["duration"] = progress["end_time"] - progress["start_time"]
        progress["percentage"] = 100.0


if __name__ == "__main__":
    pytest.main([__file__])
