#!/bin/bash
# Solventum Image Metadata — Idempotent Deployment Script
# Usage: ./deploy.sh
#
# First run:
#   cd /opt/oliver-metadata-tool
#   cp .env.example .env   # edit with your secrets
#   chmod +x deploy.sh
#   ./deploy.sh
#
# Subsequent updates:
#   cd /opt/oliver-metadata-tool && ./deploy.sh

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
COMPOSE_PROJECT="solventum-image-metadata"

# Use sudo for docker if current user can't access docker socket
DOCKER_CMD="docker"
if ! docker info > /dev/null 2>&1; then
    DOCKER_CMD="sudo docker"
fi

cd "$SCRIPT_DIR"

echo "=== Solventum Image Metadata — Deploy ==="
echo "Directory: $SCRIPT_DIR"
echo ""

# 1. Pull latest code from Bitbucket (runs as current user — needs SSH key)
echo ">>> Pulling latest code..."
git pull

# 2. Check .env exists (first-run guard)
if [ ! -f .env ]; then
    echo ""
    echo "ERROR: .env file not found!"
    echo ""
    echo "  cp .env.example .env"
    echo "  Then edit .env with your secrets (AZURE_CLIENT_SECRET, SECRET_KEY, etc.)"
    echo ""
    exit 1
fi

# 3. Build Docker image (uses layer cache, picks up code changes via COPY . .)
echo ">>> Building Docker image..."
$DOCKER_CMD compose -p "$COMPOSE_PROJECT" build

# 4. Start or restart containers (idempotent — creates if missing, restarts if running)
echo ">>> Starting containers..."
$DOCKER_CMD compose -p "$COMPOSE_PROJECT" up -d

# 5. Wait for health check
#    Database auto-initializes on first container startup:
#    - Tables created via CREATE TABLE IF NOT EXISTS
#    - Migrations run in-code (check-before-act pattern)
#    - Superadmin created if SUPERADMIN_EMAIL is set
echo ">>> Waiting for app to be healthy..."
HEALTHY=false
for i in $(seq 1 20); do
    if curl -sf http://127.0.0.1:5001/login > /dev/null 2>&1; then
        echo ">>> App is healthy!"
        HEALTHY=true
        break
    fi
    echo "  Waiting... ($i/20)"
    sleep 3
done

if [ "$HEALTHY" = false ]; then
    echo ""
    echo "WARNING: App may not be healthy after 60 seconds."
    echo "Check logs:"
    echo "  $DOCKER_CMD compose -p $COMPOSE_PROJECT logs --tail 50"
    echo ""
    exit 1
fi

# 6. Deploy static files for Apache to serve directly
WEB_DIR="/var/www/html/solventum-image-metadata"
echo ">>> Deploying static files to $WEB_DIR..."
sudo rm -rf "$WEB_DIR/static"
sudo mkdir -p "$WEB_DIR"
sudo cp -r "$SCRIPT_DIR/static" "$WEB_DIR/static"
sudo chown -R www-data:www-data "$WEB_DIR"

echo ""
echo "=== Deploy complete ==="
echo "URL: https://ai-sandbox.oliver.solutions/solventum-image-metadata/"
echo ""
$DOCKER_CMD compose -p "$COMPOSE_PROJECT" ps