#!/bin/bash
# Extract release notes from CHANGELOG for a specific version
# Usage: ./extract-release-notes.sh <app> <version> <environment> <tag_name> <output_file>

set -e

APP=$1
VERSION=$2
ENV=$3
TAG_NAME=$4
OUTPUT_FILE=$5

if [ -z "$APP" ] || [ -z "$VERSION" ] || [ -z "$ENV" ] || [ -z "$TAG_NAME" ] || [ -z "$OUTPUT_FILE" ]; then
  echo "❌ Error: Missing required parameters"
  echo "Usage: ./extract-release-notes.sh <app> <version> <environment> <tag_name> <output_file>"
  exit 1
fi

# Determine CHANGELOG path and app name
if [ "$APP" = "worker" ]; then
  CHANGELOG_PATH="apps/mobile/apps/staff/CHANGELOG.md"
  APP_NAME="Staff Product (Worker)"
else
  CHANGELOG_PATH="apps/mobile/apps/client/CHANGELOG.md"
  APP_NAME="Client Product"
fi

# Try to extract release notes for this version
if [ -f "$CHANGELOG_PATH" ]; then
  echo "📝 Found CHANGELOG at $CHANGELOG_PATH"
  
  # Extract section for this version
  # Look for ## [VERSION] and collect until next ## [ or end of file
  NOTES=$(awk "/## \[${VERSION}\]/,/^## \[/" "$CHANGELOG_PATH" | sed '1d;$d' | sed '/^$/d')
  
  if [ -z "$NOTES" ]; then
    echo "⚠️ Warning: No CHANGELOG entry found for version $VERSION"
    NOTES="Release $VERSION for $APP_NAME

⚠️ No CHANGELOG entry found for this version. Please update the CHANGELOG manually.

**Environment:** $ENV
**Tag:** $TAG_NAME"
  else
    echo "✅ Extracted release notes for version $VERSION"
    NOTES="# $APP_NAME - Release $VERSION

$NOTES

---

**Environment:** $ENV
**Tag:** $TAG_NAME"
  fi
else
  echo "⚠️ Warning: CHANGELOG not found at $CHANGELOG_PATH"
  NOTES="Release $VERSION for $APP_NAME

**Environment:** $ENV
**Tag:** $TAG_NAME"
fi

# Save to output file
echo "$NOTES" > "$OUTPUT_FILE"
echo "✅ Release notes saved to $OUTPUT_FILE"