#!/bin/bash

# apt-layer C Implementation Test Script
# Tests the C binary functionality

set -e

echo "=== apt-layer C Implementation Tests ==="
echo ""

# Get the directory where this script is located
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_DIR="$(dirname "$SCRIPT_DIR")"
BUILD_DIR="$PROJECT_DIR/build"

echo "Project directory: $PROJECT_DIR"
echo "Build directory: $BUILD_DIR"
echo ""

# Create build directory if it doesn't exist
mkdir -p "$BUILD_DIR"

# Change to project directory
cd "$PROJECT_DIR"

# Test 1: Build the C binary
echo "Test 1: Building C binary..."
if make clean && make; then
    echo "✓ Build successful"
else
    echo "✗ Build failed"
    exit 1
fi

# Test 2: Check if binary exists and is executable
echo ""
echo "Test 2: Binary verification..."
if [ -x "./bin/apt-layer" ]; then
    echo "✓ Binary exists and is executable"
    ls -la ./bin/apt-layer
else
    echo "✗ Binary not found or not executable"
    exit 1
fi

# Test 3: Help command
echo ""
echo "Test 3: Help command..."
if ./bin/apt-layer --help > /dev/null 2>&1; then
    echo "✓ Help command works"
else
    echo "✗ Help command failed"
    exit 1
fi

# Test 4: Version command
echo ""
echo "Test 4: Version command..."
if ./bin/apt-layer --version > /dev/null 2>&1; then
    echo "✓ Version command works"
else
    echo "✗ Version command failed"
    exit 1
fi

# Test 5: Invalid command handling
echo ""
echo "Test 5: Invalid command handling..."
if ! ./bin/apt-layer --invalid-option > /dev/null 2>&1; then
    echo "✓ Invalid command properly rejected"
else
    echo "✗ Invalid command not properly handled"
    exit 1
fi

# Test 6: OSTree availability
echo ""
echo "Test 6: OSTree availability..."
if command -v ostree > /dev/null 2>&1; then
    echo "✓ OSTree is available"
    ostree --version
else
    echo "⚠ OSTree not found (some features may not work)"
fi

# Test 7: Container tools availability
echo ""
echo "Test 7: Container tools availability..."
if command -v podman > /dev/null 2>&1; then
    echo "✓ Podman is available"
elif command -v docker > /dev/null 2>&1; then
    echo "✓ Docker is available"
else
    echo "⚠ No container tools found (container features may not work)"
fi

# Test 8: Basic OSTree operations
echo ""
echo "Test 8: Basic OSTree operations..."
if command -v ostree > /dev/null 2>&1; then
    # Test OSTree repo initialization
    TEST_REPO="$BUILD_DIR/test-repo"
    if [ -d "$TEST_REPO" ]; then
        rm -rf "$TEST_REPO"
    fi
    
    if ostree init --repo="$TEST_REPO" --mode=archive-z2; then
        echo "✓ OSTree repo initialization works"
        rm -rf "$TEST_REPO"
    else
        echo "✗ OSTree repo initialization failed"
    fi
else
    echo "⚠ Skipping OSTree tests (ostree not available)"
fi

echo ""
echo "=== Test Summary ==="
echo "✓ All basic functionality tests passed"
echo ""
echo "Next steps:"
echo "1. Test with actual package installations"
echo "2. Test layer creation with OSTree"
echo "3. Test container-based builds"
echo "4. Test error handling and edge cases"
echo ""
echo "To run more advanced tests, use the Docker testing environment:"
echo "  ./scripts/start-testing.sh"