//! Integration Tests for APT-OSTree
//! 
//! This module contains integration tests that validate the interaction
//! between different components of the system.

use std::path::PathBuf;
use std::fs;
use std::io;
use tracing::{info, error};
use apt_ostree::{TestResult, TestConfig};
use apt_ostree::AptOstreeResult;
use apt_ostree::AptOstreeError;

/// Test end-to-end package installation workflow
pub async fn test_package_installation_workflow(config: &TestConfig) -> TestResult {
    let test_name = "Package Installation Workflow Test".to_string();
    
    info!("🧪 Running package installation workflow test...");
    
    let success = match run_package_installation_workflow(config).await {
        Ok(_) => {
            info!("✅ Package installation workflow test passed");
            true
        }
        Err(e) => {
            error!("❌ Package installation workflow test failed: {}", e);
            false
        }
    };
    
    TestResult {
        test_name,
        success,
        message: if success { "Package installation workflow test passed".to_string() } else { "Package installation workflow test failed".to_string() },
    }
}

/// Test end-to-end system upgrade workflow
pub async fn test_system_upgrade_workflow(config: &TestConfig) -> TestResult {
    let test_name = "System Upgrade Workflow Test".to_string();
    
    info!("🧪 Running system upgrade workflow test...");
    
    let success = match run_system_upgrade_workflow(config).await {
        Ok(_) => {
            info!("✅ System upgrade workflow test passed");
            true
        }
        Err(e) => {
            error!("❌ System upgrade workflow test failed: {}", e);
            false
        }
    };
    
    TestResult {
        test_name,
        success,
        message: if success { "System upgrade workflow test passed".to_string() } else { "System upgrade workflow test failed".to_string() },
    }
}

/// Test end-to-end deployment management workflow
pub async fn test_deployment_management_workflow(config: &TestConfig) -> TestResult {
    let test_name = "Deployment Management Workflow Test".to_string();
    
    info!("🧪 Running deployment management workflow test...");
    
    let success = match run_deployment_management_workflow(config).await {
        Ok(_) => {
            info!("✅ Deployment management workflow test passed");
            true
        }
        Err(e) => {
            error!("❌ Deployment management workflow test failed: {}", e);
            false
        }
    };
    
    TestResult {
        test_name,
        success,
        message: if success { "Deployment management workflow test passed".to_string() } else { "Deployment management workflow test failed".to_string() },
    }
}

/// Test end-to-end transaction lifecycle workflow
pub async fn test_transaction_lifecycle_workflow(config: &TestConfig) -> TestResult {
    let test_name = "Transaction Lifecycle Workflow Test".to_string();
    
    info!("🧪 Running transaction lifecycle workflow test...");
    
    let success = match run_transaction_lifecycle_workflow(config).await {
        Ok(_) => {
            info!("✅ Transaction lifecycle workflow test passed");
            true
        }
        Err(e) => {
            error!("❌ Transaction lifecycle workflow test failed: {}", e);
            false
        }
    };
    
    TestResult {
        test_name,
        success,
        message: if success { "Transaction lifecycle workflow test passed".to_string() } else { "Transaction lifecycle workflow test failed".to_string() },
    }
}

/// Test end-to-end error recovery workflow
pub async fn test_error_recovery_workflow(config: &TestConfig) -> TestResult {
    let test_name = "Error Recovery Workflow Test".to_string();
    
    info!("🧪 Running error recovery workflow test...");
    
    let success = match run_error_recovery_workflow(config).await {
        Ok(_) => {
            info!("✅ Error recovery workflow test passed");
            true
        }
        Err(e) => {
            error!("❌ Error recovery workflow test failed: {}", e);
            false
        }
    };
    
    TestResult {
        test_name,
        success,
        message: if success { "Error recovery workflow test passed".to_string() } else { "Error recovery workflow test failed".to_string() },
    }
}

// Test implementation functions
async fn run_package_installation_workflow(config: &TestConfig) -> AptOstreeResult<()> {
    // TODO: Implement real package installation workflow test
    // This would test:
    // - Package search and selection
    // - Dependency resolution
    // - Package download
    // - Installation and verification
    // - Transaction completion
    
    // For now, return success
    Ok(())
}

async fn run_system_upgrade_workflow(config: &TestConfig) -> AptOstreeResult<()> {
    // TODO: Implement real system upgrade workflow test
    // This would test:
    // - System status checking
    // - Available updates detection
    // - Upgrade planning
    // - Package updates
    // - System reboot handling
    
    // For now, return success
    Ok(())
}

async fn run_deployment_management_workflow(config: &TestConfig) -> AptOstreeResult<()> {
    // TODO: Implement real deployment management workflow test
    // This would test:
    // - Deployment listing
    // - Deployment switching
    // - Rollback functionality
    // - Deployment cleanup
    
    // For now, return success
    Ok(())
}

async fn run_transaction_lifecycle_workflow(config: &TestConfig) -> AptOstreeResult<()> {
    // TODO: Implement real transaction lifecycle workflow test
    // This would test:
    // - Transaction creation
    // - Transaction execution
    // - Progress monitoring
    // - Transaction completion
    // - Transaction cleanup
    
    // For now, return success
    Ok(())
}

async fn run_error_recovery_workflow(config: &TestConfig) -> AptOstreeResult<()> {
    // TODO: Implement real error recovery workflow test
    // This would test:
    // - Error detection
    // - Error classification
    // - Recovery strategies
    // - System state restoration
    
    // For now, return success
    Ok(())
}

#[cfg(test)]
mod tests {
    use super::*;
    
    #[tokio::test]
    async fn test_package_installation_workflow_integration() {
        let config = TestConfig::new();
        let result = test_package_installation_workflow(&config).await;
        assert!(result.success, "Integration test failed: {}", result.message);
    }
    
    #[tokio::test]
    async fn test_system_upgrade_workflow_integration() {
        let config = TestConfig::new();
        let result = test_system_upgrade_workflow(&config).await;
        assert!(result.success, "Integration test failed: {}", result.message);
    }

    #[tokio::test]
    async fn test_deployment_management_workflow_integration() {
        let config = TestConfig::new();
        let result = test_deployment_management_workflow(&config).await;
        assert!(result.success, "Integration test failed: {}", result.message);
    }

    #[tokio::test]
    async fn test_transaction_lifecycle_workflow_integration() {
        let config = TestConfig::new();
        let result = test_transaction_lifecycle_workflow(&config).await;
        assert!(result.success, "Integration test failed: {}", result.message);
    }

    #[tokio::test]
    async fn test_error_recovery_workflow_integration() {
        let config = TestConfig::new();
        let result = test_error_recovery_workflow(&config).await;
        assert!(result.success, "Integration test failed: {}", result.message);
    }
}