#!/bin/bash
# Release automation script for obm CLI
# Usage: ./scripts/release.sh <version>
# Example: ./scripts/release.sh v0.2.0

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
VERSION_FILE="$PROJECT_ROOT/VERSION"

# Colors
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m' # No Color

log_info() {
    echo -e "${GREEN}[INFO]${NC} $1"
}

log_warn() {
    echo -e "${YELLOW}[WARN]${NC} $1"
}

log_error() {
    echo -e "${RED}[ERROR]${NC} $1"
}

# Validate version argument
if [ -z "$1" ]; then
    log_error "Version argument required"
    echo "Usage: $0 <version>"
    echo "Example: $0 v0.2.0"
    exit 1
fi

NEW_VERSION="$1"

# Strip 'v' prefix if present
VERSION_NUM="${NEW_VERSION#v}"

# Validate version format (semver)
if ! [[ "$VERSION_NUM" =~ ^[0-9]+\.[0-9]+\.[0-9]+(-[a-zA-Z0-9.]+)?$ ]]; then
    log_error "Invalid version format: $NEW_VERSION"
    echo "Expected format: vX.Y.Z or X.Y.Z (semver)"
    exit 1
fi

cd "$PROJECT_ROOT"

# Check for uncommitted changes
if ! git diff-index --quiet HEAD --; then
    log_error "Uncommitted changes detected. Please commit or stash first."
    git status --short
    exit 1
fi

# Check for unpushed commits
LOCAL=$(git rev-parse @)
REMOTE=$(git rev-parse @{u} 2>/dev/null || echo "")

if [ "$LOCAL" != "$REMOTE" ]; then
    log_warn "Unpushed commits detected. Push before release?"
    read -p "Push now? (y/N) " -n 1 -r
    echo
    if [[ $REPLY =~ ^[Yy]$ ]]; then
        git push
    else
        log_error "Please push changes before releasing"
        exit 1
    fi
fi

# Run tests
log_info "Running tests..."
make test || {
    log_error "Tests failed. Fix before releasing."
    exit 1
}

# Update VERSION file
log_info "Updating VERSION file to $VERSION_NUM"
echo "$VERSION_NUM" > "$VERSION_FILE"

# Update version in main.go
MAIN_GO="$PROJECT_ROOT/cmd/obm/main.go"
if [ -f "$MAIN_GO" ]; then
    log_info "Updating version in main.go"
    sed -i "s/^const version = \".*\"/const version = \"$VERSION_NUM\"/" "$MAIN_GO"
fi

# Commit version bump
log_info "Committing version bump"
git add "$VERSION_FILE" "$MAIN_GO"
git commit -m "chore: release v$VERSION_NUM"

# Create and push tag
TAG="v$VERSION_NUM"
log_info "Creating tag $TAG"
git tag -a "$TAG" -m "Release $TAG"

log_info "Pushing tag to remote..."
git push origin "$TAG"

log_info "Release process initiated!"
echo ""
echo "Version: $VERSION_NUM"
echo "Tag: $TAG"
echo ""
echo "Next steps:"
echo "  1. GitHub Actions will build and create the release automatically"
echo "  2. Monitor at: https://github.com/openboatmobile/obm/actions"
echo "  3. Draft release will be created at: https://github.com/openboatmobile/obm/releases"
echo ""
echo "To manually build binaries:"
echo "  make cross-compile VERSION=$VERSION_NUM"
echo ""