#!/bin/bash

# Production Deployment Script for CMC Sales
# This script deploys the application to sales.cmctechnologies.com.au
# Based on .gitlab-ci.yml deployment steps

set -e  # Exit on error

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

# Configuration
PRODUCTION_HOST="cmc@sales.cmctechnologies.com.au"
PRODUCTION_DIR="/home/cmc/cmc-sales"
CURRENT_BRANCH=$(git branch --show-current)

echo -e "${GREEN}========================================${NC}"
echo -e "${GREEN}CMC Sales Production Deployment Script${NC}"
echo -e "${GREEN}========================================${NC}"
echo ""

# Check if we're on master branch
if [ "$CURRENT_BRANCH" != "master" ]; then
    echo -e "${YELLOW}Warning: You are not on the master branch.${NC}"
    echo -e "${YELLOW}Current branch: $CURRENT_BRANCH${NC}"
    read -p "Do you want to continue deployment from $CURRENT_BRANCH? (y/N): " confirm
    if [ "$confirm" != "y" ] && [ "$confirm" != "Y" ]; then
        echo -e "${RED}Deployment cancelled.${NC}"
        exit 1
    fi
fi

# Check for uncommitted changes
if ! git diff-index --quiet HEAD --; then
    echo -e "${YELLOW}Warning: You have uncommitted changes.${NC}"
    git status --short
    read -p "Do you want to continue? (y/N): " confirm
    if [ "$confirm" != "y" ] && [ "$confirm" != "Y" ]; then
        echo -e "${RED}Deployment cancelled.${NC}"
        exit 1
    fi
fi

# Get latest commit hash for build arg
COMMIT_HASH=$(git rev-parse --short HEAD)
echo -e "${GREEN}Deploying commit: $COMMIT_HASH${NC}"
echo ""

# Push latest changes to origin
echo -e "${YELLOW}Step 1: Pushing latest changes to origin...${NC}"
git push origin $CURRENT_BRANCH
if [ $? -eq 0 ]; then
    echo -e "${GREEN}✓ Changes pushed successfully${NC}"
else
    echo -e "${RED}✗ Failed to push changes${NC}"
    exit 1
fi
echo ""

# SSH to production and execute deployment
echo -e "${YELLOW}Step 2: Connecting to production server...${NC}"
echo -e "${YELLOW}Executing deployment on $PRODUCTION_HOST${NC}"
echo ""

ssh -T $PRODUCTION_HOST << 'ENDSSH'
set -e

# Color codes for remote output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m'

echo -e "${GREEN}Connected to production server${NC}"
echo ""

# Navigate to project directory
echo -e "${YELLOW}Step 3: Navigating to project directory...${NC}"
cd /home/cmc/cmc-sales
pwd
echo ""

# Pull latest changes
echo -e "${YELLOW}Step 4: Pulling latest changes from Git...${NC}"
git pull origin master
if [ $? -eq 0 ]; then
    echo -e "${GREEN}✓ Git pull successful${NC}"
else
    echo -e "${RED}✗ Git pull failed${NC}"
    exit 1
fi
echo ""

# Get commit hash for build
COMMIT_HASH=$(git rev-parse --short HEAD)
echo -e "${GREEN}Building from commit: $COMMIT_HASH${NC}"

# Copy userpasswd file
echo -e "${YELLOW}Step 5: Copying userpasswd file...${NC}"
cp /home/cmc/cmc-sales/userpasswd /home/cmc/userpasswd
if [ $? -eq 0 ]; then
    echo -e "${GREEN}✓ userpasswd file copied${NC}"
else
    echo -e "${RED}✗ Failed to copy userpasswd file${NC}"
    exit 1
fi
echo ""

# Build Docker image
echo -e "${YELLOW}Step 6: Building Docker image...${NC}"
docker build --build-arg=COMMIT=$COMMIT_HASH . -t "cmc:latest"
if [ $? -eq 0 ]; then
    echo -e "${GREEN}✓ Docker image built successfully${NC}"
else
    echo -e "${RED}✗ Docker build failed${NC}"
    exit 1
fi
echo ""

# Stop existing container
echo -e "${YELLOW}Step 7: Stopping existing container...${NC}"
export ID=$(docker ps -q --filter ancestor=cmc:latest)
if [ ! -z "$ID" ]; then
    docker kill $ID
    echo -e "${GREEN}✓ Existing container stopped${NC}"
    sleep 1
else
    echo -e "${YELLOW}No existing container found${NC}"
fi
echo ""

# Run new container
echo -e "${YELLOW}Step 8: Starting new container...${NC}"
docker run -d --restart always -p 127.0.0.1:8888:80 \
       --mount type=bind,source=/mnt/vault/pdf,target=/var/www/cmc-sales/app/webroot/pdf \
       --mount type=bind,source=/mnt/vault/attachments_files,target=/var/www/cmc-sales/app/webroot/attachments_files \
       --mount type=bind,source=/mnt/vault/emails,target=/var/www/emails \
       --mount type=bind,source=/mnt/vault/vaultmsgs,target=/var/www/vaultmsgs \
       cmc:latest

if [ $? -eq 0 ]; then
    echo -e "${GREEN}✓ New container started successfully${NC}"
else
    echo -e "${RED}✗ Failed to start new container${NC}"
    exit 1
fi
echo ""

# Verify container is running
echo -e "${YELLOW}Step 9: Verifying deployment...${NC}"
sleep 2
NEW_ID=$(docker ps -q --filter ancestor=cmc:latest)
if [ ! -z "$NEW_ID" ]; then
    echo -e "${GREEN}✓ Container is running with ID: $NEW_ID${NC}"
    docker ps --filter ancestor=cmc:latest --format "table {{.ID}}\t{{.Image}}\t{{.Status}}\t{{.Ports}}"
else
    echo -e "${RED}✗ Container is not running!${NC}"
    exit 1
fi
echo ""

# Show recent logs
echo -e "${YELLOW}Step 10: Recent container logs:${NC}"
docker logs --tail 20 $NEW_ID
echo ""

echo -e "${GREEN}========================================${NC}"
echo -e "${GREEN}✓ Deployment completed successfully!${NC}"
echo -e "${GREEN}========================================${NC}"

ENDSSH

if [ $? -eq 0 ]; then
    echo ""
    echo -e "${GREEN}========================================${NC}"
    echo -e "${GREEN}✓ Production deployment successful!${NC}"
    echo -e "${GREEN}========================================${NC}"
    echo ""
    echo -e "${GREEN}Application is running at:${NC}"
    echo -e "${GREEN}  Internal: http://127.0.0.1:8888${NC}"
    echo -e "${GREEN}  External: https://sales.cmctechnologies.com.au${NC}"
    echo ""
    echo -e "${YELLOW}To view live logs:${NC}"
    echo "  ssh $PRODUCTION_HOST 'docker logs -f \$(docker ps -q --filter ancestor=cmc:latest)'"
    echo ""
    echo -e "${YELLOW}To rollback if needed:${NC}"
    echo "  ssh $PRODUCTION_HOST 'docker run -d --restart always -p 127.0.0.1:8888:80 [previous-image-id]'"
else
    echo ""
    echo -e "${RED}========================================${NC}"
    echo -e "${RED}✗ Deployment failed!${NC}"
    echo -e "${RED}========================================${NC}"
    echo ""
    echo -e "${YELLOW}To check the status:${NC}"
    echo "  ssh $PRODUCTION_HOST 'docker ps -a'"
    echo ""
    echo -e "${YELLOW}To view logs:${NC}"
    echo "  ssh $PRODUCTION_HOST 'docker logs \$(docker ps -aq | head -1)'"
    exit 1
fi