#!/bin/bash
# WAVE 102: Automated Coverage Testing Script
# Switches to coverage-compatible config, runs coverage, then restores production config

set -e

echo "🔧 WAVE 102: Coverage Tool Runner"
echo "================================="
echo ""

# Backup current config
echo "📦 Backing up current config..."
cp .cargo/config.toml .cargo/config.toml.backup

# Switch to coverage config
echo "🔄 Switching to coverage-compatible config..."
cp .cargo/config.toml.coverage .cargo/config.toml

# Clean build artifacts
echo "🧹 Cleaning build artifacts..."
cargo clean

# Run coverage
echo "📊 Running coverage analysis..."
if [ "$1" == "--workspace" ]; then
    echo "   Target: Entire workspace"
    cargo llvm-cov --workspace --html --output-dir target/coverage --ignore-run-fail
elif [ -n "$1" ]; then
    echo "   Target: Package '$1'"
    cargo llvm-cov --package "$1" --html --output-dir target/coverage --ignore-run-fail
else
    echo "   Target: common (default)"
    cargo llvm-cov --package common --html --output-dir target/coverage --ignore-run-fail
fi

# Generate JSON for parsing
echo "📝 Generating JSON coverage data..."
if [ "$1" == "--workspace" ]; then
    cargo llvm-cov --workspace --json --output-path target/coverage/coverage.json --ignore-run-fail 2>/dev/null || echo "   (some tests failed, but coverage generated)"
elif [ -n "$1" ]; then
    cargo llvm-cov --package "$1" --json --output-path target/coverage/"$1".json --ignore-run-fail 2>/dev/null || echo "   (some tests failed, but coverage generated)"
else
    cargo llvm-cov --package common --json --output-path target/coverage/common.json --ignore-run-fail 2>/dev/null || echo "   (some tests failed, but coverage generated)"
fi

# Restore original config
echo "♻️  Restoring production config..."
cp .cargo/config.toml.backup .cargo/config.toml
rm .cargo/config.toml.backup

echo ""
echo "✅ Coverage analysis complete!"
echo "   HTML report: target/coverage/html/index.html"
echo "   JSON data: target/coverage/*.json"
echo ""
echo "To view HTML report:"
echo "   xdg-open target/coverage/html/index.html"
echo ""