#!/bin/bash
# ─────────────────────────────────────────────────────────────
# deploy.sh — Skrip deploy produksi (Ubuntu)
# Sistem Pemantauan Kemampanan Pusat Data MBIP
#
# Penggunaan:
#   ./deploy.sh            # deploy / kemas kini (pull, build, up, migrate)
#   ./deploy.sh --build    # paksa bina semula imej Docker
#   ./deploy.sh --fresh    # migrate:fresh --seed (AMARAN: kosongkan data)
#   ./deploy.sh --logs     # ikut log container
#   ./deploy.sh --down     # hentikan container
# ─────────────────────────────────────────────────────────────
set -euo pipefail

cd "$(dirname "$0")"

# Guna `docker compose` (v2) atau `docker-compose` (v1) — auto kesan.
if docker compose version >/dev/null 2>&1; then
    DC="docker compose"
else
    DC="docker-compose"
fi

# Hanya fail produksi (abaikan docker-compose.override.yml untuk dev).
COMPOSE_FILES="-f docker-compose.yml"

log()  { echo -e "\033[0;32m==>\033[0m $*"; }
warn() { echo -e "\033[0;33m[!]\033[0m $*"; }
die()  { echo -e "\033[0;31m[x]\033[0m $*" >&2; exit 1; }

# ── Semakan prasyarat ────────────────────────────────────────
command -v docker >/dev/null 2>&1 || die "Docker tidak dipasang."

if [ ! -f .env ]; then
    warn ".env tidak dijumpai — menyalin daripada .env.docker"
    cp .env.docker .env
    die "Sila edit .env (APP_KEY, DB_USERNAME, DB_PASSWORD, APP_URL) kemudian jalankan semula ./deploy.sh"
fi

# ── Kendalikan flag ──────────────────────────────────────────
case "${1:-}" in
    --logs)  exec $DC $COMPOSE_FILES logs -f --tail=100 ;;
    --down)  log "Menghentikan container..."; $DC $COMPOSE_FILES down; exit 0 ;;
esac

FORCE_BUILD=false
FRESH=false
for arg in "$@"; do
    case "$arg" in
        --build) FORCE_BUILD=true ;;
        --fresh) FRESH=true ;;
    esac
done

# ── 1. Tarik kod terkini (jika repo git) ─────────────────────
if [ -d .git ]; then
    log "Menarik kod terkini (git pull)..."
    git pull --ff-only || warn "git pull gagal / dilangkau."
fi

# ── 2. Bina aset frontend pada host (Vite) ───────────────────
# Nota: nginx melekap ./public (read-only) terus daripada host,
# jadi aset dibina di sini, bukan dalam imej.
if command -v npm >/dev/null 2>&1; then
    log "Membina aset frontend (npm ci && npm run build)..."
    npm ci --silent || npm install --silent
    npm run build
else
    warn "npm tidak dijumpai pada host — pastikan public/build sudah dibina."
fi

# ── 3. Bina / mulakan container ──────────────────────────────
if [ "$FORCE_BUILD" = true ]; then
    log "Membina semula imej Docker..."
    $DC $COMPOSE_FILES build --pull
fi

log "Memulakan container..."
$DC $COMPOSE_FILES up -d --remove-orphans

# ── 4. Tunggu container app sihat ────────────────────────────
log "Menunggu container app sihat..."
for i in $(seq 1 30); do
    if $DC $COMPOSE_FILES exec -T app php-fpm -t >/dev/null 2>&1; then
        break
    fi
    sleep 2
done

# ── 5. Migrasi & optimisasi Laravel ──────────────────────────
if [ "$FRESH" = true ]; then
    warn "Menjalankan migrate:fresh --seed (semua data akan dikosongkan)..."
    $DC $COMPOSE_FILES exec -T --user www-data app php artisan migrate:fresh --seed --force --no-interaction
else
    log "Menjalankan migrasi..."
    $DC $COMPOSE_FILES exec -T --user www-data app php artisan migrate --force --no-interaction
fi

log "Memastikan storage symlink..."
$DC $COMPOSE_FILES exec -T --user www-data app php artisan storage:link --force || true

log "Membina semula cache Laravel..."
$DC $COMPOSE_FILES exec -T --user www-data app php artisan optimize:clear
$DC $COMPOSE_FILES exec -T --user www-data app php artisan optimize

# ── 6. Status ────────────────────────────────────────────────
log "Selesai!"
$DC $COMPOSE_FILES ps

PORT=$(grep -E '^NGINX_HTTP_PORT=' .env | cut -d= -f2 || echo 8010)
log "Aplikasi tersedia pada port ${PORT:-8010} (cth: http://<server-ip>:${PORT:-8010})"