#!/bin/bash
set -e

# Deploy script for My Weekly To-Do List
# Usage: ./deploy.sh [version]
# Example: ./deploy.sh 1.1.0

APP_NAME="my-weekly-todo"
COMPOSE_FILE="docker-compose.yml"

# Colors
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
RED='\033[0;31m'
NC='\033[0m'

echo -e "${GREEN}=== $APP_NAME Deploy ===${NC}"

# Ensure we're on main branch
BRANCH=$(git rev-parse --abbrev-ref HEAD)
if [ "$BRANCH" != "main" ]; then
    echo -e "${RED}Error: Must deploy from main branch (currently on '$BRANCH')${NC}"
    echo "Run: git checkout main && git merge dev"
    exit 1
fi

# Check for uncommitted changes
if [ -n "$(git status --porcelain)" ]; then
    echo -e "${RED}Error: Uncommitted changes detected. Commit or stash first.${NC}"
    git status --short
    exit 1
fi

# Optional: bump version
VERSION=$1
if [ -n "$VERSION" ]; then
    echo -e "${YELLOW}Bumping version to $VERSION...${NC}"
    npm version "$VERSION" --no-git-tag-version
    git add package.json package-lock.json
    git commit -m "chore: bump version to v$VERSION"
    git tag -a "v$VERSION" -m "Release v$VERSION"
    echo -e "${GREEN}Tagged v$VERSION${NC}"
fi

# Run database migrations
echo -e "${YELLOW}Running database migrations...${NC}"
docker compose -f "$COMPOSE_FILE" run --rm app npx prisma migrate deploy 2>/dev/null || true

# Build and deploy
echo -e "${YELLOW}Building production image...${NC}"
docker compose -f "$COMPOSE_FILE" build --no-cache

echo -e "${YELLOW}Starting services...${NC}"
docker compose -f "$COMPOSE_FILE" up -d

# Wait for health check
echo -e "${YELLOW}Waiting for health check...${NC}"
sleep 10
if docker compose -f "$COMPOSE_FILE" ps | grep -q "healthy"; then
    echo -e "${GREEN}Deployment successful!${NC}"
else
    echo -e "${YELLOW}Services started (health check may still be warming up)${NC}"
    docker compose -f "$COMPOSE_FILE" ps
fi

CURRENT_VERSION=$(node -p "require('./package.json').version")
echo -e "${GREEN}=== Deployed v$CURRENT_VERSION ===${NC}"