#!/bin/bash

# Release script for FlexLove
# Usage: ./release <version>
# Example: ./release 0.2.0

set -e

if [ -z "$1" ]; then
    echo "Error: Version number required"
    echo "Usage: ./release <version>"
    echo "Example: ./release 0.2.0"
    exit 1
fi

VERSION="$1"

# Validate version format (basic semver check)
if ! [[ "$VERSION" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
    echo "Error: Invalid version format. Use semantic versioning (e.g., 0.2.0)"
    exit 1
fi

echo "Preparing release v$VERSION..."

# Update version in README.md
echo "Updating README.md..."
sed -i.bak "s/^# FlexLöve v[0-9]\+\.[0-9]\+\.[0-9]\+/# FlexLöve v$VERSION/" README.md
rm README.md.bak

# Update version in FlexLove.lua
echo "Updating FlexLove.lua..."
sed -i.bak "s/FlexLove\._VERSION = \"[0-9]\+\.[0-9]\+\.[0-9]\+\"/FlexLove._VERSION = \"$VERSION\"/" FlexLove.lua
rm FlexLove.lua.bak

# Show the changes
echo ""
echo "Changes made:"
git diff README.md FlexLove.lua

# Ask for confirmation
echo ""
read -p "Do you want to commit these changes and create a release? (y/n) " -n 1 -r
echo
if [[ ! $REPLY =~ ^[Yy]$ ]]; then
    echo "Release cancelled. Restoring original files..."
    git checkout README.md FlexLove.lua
    exit 1
fi

# Commit the changes
echo "Committing version bump..."
git add README.md FlexLove.lua
git commit -m "Bump version to v$VERSION"

# Create git tag
echo "Creating git tag v$VERSION..."
git tag -a "v$VERSION" -m "Release v$VERSION"

# Push changes and tags
echo "Pushing to remote..."
git push origin main
git push origin "v$VERSION"

# Create GitHub release
echo "Creating GitHub release..."
gh release create "v$VERSION" \
    --title "v$VERSION" \
    --generate-notes

echo ""
echo "✅ Release v$VERSION completed successfully!"
echo "   - README.md and FlexLove.lua updated"
echo "   - Git tag v$VERSION created"
echo "   - GitHub release created"