#!/usr/bin/env bash
# Deploy the full stack to ambrosio.
#
# Usage:  infra/scripts/deploy-erosi.sh
# Env:    DEPLOY_HOST=ambrosio (override if needed)
#         DEPLOY_PATH=/opt/colectivo
#
# First run:
#   1. rsyncs repo → ambrosio:/opt/colectivo/
#   2. if .env doesn't exist on server, generates secrets and writes it
#   3. patches realm-export.erosi.json with the generated Keycloak client secret
#   4. docker compose build + up -d
#   5. applies DB migrations
#   6. installs the Caddyfile snippet into host Caddy and reloads
#
# Subsequent runs: rsync + rebuild app + rolling restart.

set -euo pipefail

DEPLOY_HOST="${DEPLOY_HOST:-ambrosio}"
DEPLOY_PATH="${DEPLOY_PATH:-/opt/colectivo}"
REPO_ROOT="$(cd "$(dirname "$0")/../.." && pwd)"

echo "==> Deploying to $DEPLOY_HOST:$DEPLOY_PATH"

# ── 1. Ensure target dir exists ────────────────────────────────────────────
ssh "$DEPLOY_HOST" "sudo mkdir -p $DEPLOY_PATH && sudo chown \$(id -u):\$(id -g) $DEPLOY_PATH"

# ── 2. rsync repo (excluding node_modules / build artefacts / local env) ──
rsync -az --delete \
	--exclude '.git' \
	--exclude 'node_modules' \
	--exclude '.svelte-kit' \
	--exclude 'apps/web/build' \
	--exclude 'apps/web/.vite' \
	--exclude '**/*.log' \
	--exclude '**/.env' \
	--exclude '**/.env.development' \
	--exclude '**/.env.local' \
	--exclude 'lighthouse-report.html' \
	--exclude 'coverage' \
	--exclude 'test-results' \
	--exclude 'playwright-report' \
	"$REPO_ROOT/" "$DEPLOY_HOST:$DEPLOY_PATH/"

# ── 3. Bootstrap secrets on first run ──────────────────────────────────────
ssh "$DEPLOY_HOST" bash -s << 'REMOTE'
set -euo pipefail
cd /opt/colectivo

if [ ! -f .env ]; then
	echo "--- First deploy: generating secrets"

	# JWT triplet (anon + service_role)
	JWT_OUT=$(bash infra/scripts/rotate-jwt.sh)
	SUPABASE_JWT_SECRET=$(echo "$JWT_OUT" | awk -F= '/^SUPABASE_JWT_SECRET=/{print substr($0, index($0,$2))}')
	PUBLIC_SUPABASE_ANON_KEY=$(echo "$JWT_OUT" | awk -F= '/^PUBLIC_SUPABASE_ANON_KEY=/{print substr($0, index($0,$2))}')
	SUPABASE_SERVICE_ROLE_KEY=$(echo "$JWT_OUT" | awk -F= '/^SUPABASE_SERVICE_ROLE_KEY=/{print substr($0, index($0,$2))}')

	# Other passwords + keys
	POSTGRES_PASSWORD=$(openssl rand -hex 24)
	KEYCLOAK_ADMIN_PASSWORD=$(openssl rand -hex 24)
	KEYCLOAK_CLIENT_SECRET=$(openssl rand -hex 24)
	REALTIME_ENC_KEY=$(openssl rand -hex 8)       # 16 chars
	REALTIME_SECRET_KEY_BASE=$(openssl rand -hex 48) # 96 chars

	cat > .env <<EOF
# Generated on $(date -u +%Y-%m-%dT%H:%M:%SZ). Keep this file mode 600.
PUBLIC_APP_URL=https://erosi.oier.ovh
PUBLIC_SUPABASE_URL=https://erosi.oier.ovh
PUBLIC_KEYCLOAK_URL=https://auth.oier.ovh
PUBLIC_KEYCLOAK_REALM=colectivo
PUBLIC_KEYCLOAK_CLIENT_ID=colectivo-web
KEYCLOAK_HOSTNAME=auth.oier.ovh

POSTGRES_PASSWORD=$POSTGRES_PASSWORD

SUPABASE_JWT_SECRET=$SUPABASE_JWT_SECRET
PUBLIC_SUPABASE_ANON_KEY=$PUBLIC_SUPABASE_ANON_KEY
SUPABASE_SERVICE_ROLE_KEY=$SUPABASE_SERVICE_ROLE_KEY

KEYCLOAK_ADMIN=admin
KEYCLOAK_ADMIN_PASSWORD=$KEYCLOAK_ADMIN_PASSWORD
KEYCLOAK_CLIENT_SECRET=$KEYCLOAK_CLIENT_SECRET

REALTIME_ENC_KEY=$REALTIME_ENC_KEY
REALTIME_SECRET_KEY_BASE=$REALTIME_SECRET_KEY_BASE
EOF
	chmod 600 .env
	echo "--- Wrote .env (mode 600). Keycloak admin password stored there."
fi

# Always substitute the client secret placeholder in the realm JSON.
# Keycloak only imports the realm if it doesn't exist yet — on first boot only.
source .env
sed -i "s|__KEYCLOAK_CLIENT_SECRET__|$KEYCLOAK_CLIENT_SECRET|g" keycloak/realm-export.erosi.json
REMOTE

# ── 4. Build + bring up the stack ─────────────────────────────────────────
ssh "$DEPLOY_HOST" bash -s << 'REMOTE'
set -euo pipefail
cd /opt/colectivo

echo "--- Building app image"
docker compose --env-file .env -f infra/docker-compose.erosi.yml build app

echo "--- Bringing stack up (detached)"
docker compose --env-file .env -f infra/docker-compose.erosi.yml up -d

echo "--- Waiting for db to be healthy"
for i in $(seq 1 60); do
	if docker compose --env-file .env -f infra/docker-compose.erosi.yml ps db --format json | grep -q '"Health":"healthy"'; then
		echo "db healthy"; break
	fi
	sleep 2
done

echo "--- Applying migrations"
docker compose --env-file .env -f infra/docker-compose.erosi.yml exec -T db \
	psql -U postgres -d postgres -c "CREATE TABLE IF NOT EXISTS public._applied_migrations (filename TEXT PRIMARY KEY, applied_at TIMESTAMPTZ DEFAULT now());"

for f in supabase/migrations/*.sql; do
	fn=$(basename "$f")
	already=$(docker compose --env-file .env -f infra/docker-compose.erosi.yml exec -T db \
		psql -U postgres -d postgres -tAq -c "SELECT count(*) FROM public._applied_migrations WHERE filename='$fn'")
	if [ "${already:-0}" -gt 0 ]; then
		echo "  skip $fn (applied)"
		continue
	fi
	printf "  apply %s ... " "$fn"
	if docker compose --env-file .env -f infra/docker-compose.erosi.yml exec -T db \
			psql -U postgres -d postgres -v ON_ERROR_STOP=1 -q < "$f"; then
		docker compose --env-file .env -f infra/docker-compose.erosi.yml exec -T db \
			psql -U postgres -d postgres -c "INSERT INTO public._applied_migrations (filename) VALUES ('$fn') ON CONFLICT DO NOTHING;"
		echo "ok"
	else
		echo "FAIL"; exit 1
	fi
done

echo "--- Keycloak may need an extra minute to import the realm on first boot"
REMOTE

# ── 5. Install Caddyfile snippet into host Caddy (idempotent) ─────────────
ssh "$DEPLOY_HOST" bash -s << 'REMOTE'
set -euo pipefail
cd /opt/colectivo

MARKER_START="# BEGIN colectivo-erosi"
MARKER_END="# END colectivo-erosi"

# Strip any previous version of our block from /etc/caddy/Caddyfile, then append fresh.
sudo awk -v start="$MARKER_START" -v end="$MARKER_END" '
	$0 ~ start {skip=1}
	!skip {print}
	$0 ~ end {skip=0}
' /etc/caddy/Caddyfile > /tmp/Caddyfile.new

{
	echo ""
	echo "$MARKER_START"
	cat infra/caddy/erosi.Caddyfile
	echo "$MARKER_END"
} >> /tmp/Caddyfile.new

sudo mv /tmp/Caddyfile.new /etc/caddy/Caddyfile
sudo caddy validate --config /etc/caddy/Caddyfile
sudo systemctl reload caddy
echo "--- Caddy reloaded"
REMOTE

echo "==> Deploy complete."
echo "    App:       https://erosi.oier.ovh"
echo "    Keycloak:  https://auth.oier.ovh"
echo "    Admin pw:  ssh $DEPLOY_HOST 'grep KEYCLOAK_ADMIN_PASSWORD $DEPLOY_PATH/.env'"