#!/bin/bash
# Check if a commit or code change has been released (is contained in any version tag)
#
# Usage:
#   ./scripts/check-if-released <commit-hash>
#   ./scripts/check-if-released <commit-hash> --details
#
# Examples:
#   ./scripts/check-if-released f4568be
#   ./scripts/check-if-released HEAD~3 --details

set -e

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

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

# Check if commit hash provided
if [ -z "$1" ]; then
    echo "Usage: $0 <commit-hash> [--details]"
    echo ""
    echo "Examples:"
    echo "  $0 f4568be"
    echo "  $0 HEAD~3 --details"
    exit 1
fi

COMMIT="$1"
DETAILS="${2:-}"

# Validate commit exists
if ! git rev-parse --verify "$COMMIT" >/dev/null 2>&1; then
    echo -e "${RED}Error: Commit '$COMMIT' not found${NC}"
    exit 1
fi

# Get full commit hash
FULL_HASH=$(git rev-parse "$COMMIT")
SHORT_HASH=$(git rev-parse --short "$COMMIT")

# Get commit info
COMMIT_SUBJECT=$(git log -1 --format="%s" "$COMMIT")
COMMIT_DATE=$(git log -1 --format="%ci" "$COMMIT")

echo "Checking commit: $SHORT_HASH"
echo "Subject: $COMMIT_SUBJECT"
echo "Date: $COMMIT_DATE"
echo ""

# Check if commit is in any version tag (v*.*.*)
TAGS=$(git tag --contains "$COMMIT" | grep -E '^v[0-9]+\.[0-9]+\.[0-9]+' || true)

if [ -z "$TAGS" ]; then
    echo -e "${GREEN}✓ NOT RELEASED${NC}"
    echo "This commit is not part of any version tag."
    echo ""
    echo -e "${YELLOW}→ No legacy migration needed for code introduced in this commit${NC}"
    exit 0
else
    echo -e "${RED}✗ ALREADY RELEASED${NC}"
    echo "This commit is included in the following version tags:"
    echo "$TAGS" | sed 's/^/  - /'
    echo ""
    echo -e "${YELLOW}⚠ Breaking Change Decision:${NC}"
    echo "  1. If migration is SIMPLE (e.g., .lower(), key rename) → Add it"
    echo "  2. If migration is COMPLEX → Document in release notes instead"
    echo "  3. Home Assistant style: Prefer breaking changes over code complexity"
    echo ""

    if [ "$DETAILS" = "--details" ]; then
        echo ""
        echo "First release containing this commit:"
        FIRST_TAG=$(echo "$TAGS" | head -1)
        echo "  Tag: $FIRST_TAG"
        git log -1 --format="  Date: %ci" "$FIRST_TAG"

        echo ""
        echo "Latest release:"
        LATEST_TAG=$(git tag -l 'v*.*.*' --sort=-version:refname | head -1)
        echo "  Tag: $LATEST_TAG"
        git log -1 --format="  Date: %ci" "$LATEST_TAG"
    fi

    exit 1
fi