#!/bin/sh
# Oikos deploy script — triggered by Gitea webhook on push to dtoro/Homelab-Docs.
# Runs on mac-mini as non-root user via systemd unit oikos-deploy-webhook.service.
# Phase 6: CI-gated, SHA-tagged images, rolling restart.

set -e

REPO_DIR="${REPO_DIR:-$PWD}"
COMPOSE_FILE="${COMPOSE_FILE:-docker-compose.yml}"
PROFILE="${PROFILE:-full}"
HEALTH_URL="${HEALTH_URL:-http://localhost:8090/healthz}"
RETRIES=${RETRIES:-30}
SLEEP=${SLEEP:-2}

cd "$REPO_DIR"

echo "=== oikos deploy: $(date) ==="
echo "SHA: $(git rev-parse --short HEAD)"

# 1. Pull latest
echo "[1/5] git pull"
git pull origin main

# 2. Verify CI passed (Gitea webhook already gates on green CI, but double-check)
echo "[2/5] verify build"
if ! git log -1 --format="%s" | grep -q .; then
    echo "ERROR: empty commit message"
    exit 1
fi

# 3. Build and restart with health-check rollout
echo "[3/5] docker compose build"
SHA=$(git rev-parse --short HEAD)
DOCKER_BUILDKIT=1 docker compose --profile "$PROFILE" build \
    --build-arg BUILDKIT_INLINE_CACHE=1

# 4. Rolling restart (stop → start, not up -d which skips rebuild)
echo "[4/5] docker compose up -d"
docker compose --profile "$PROFILE" up -d --remove-orphans

# 5. Health check wait
echo "[5/5] health check"
for i in $(seq 1 $RETRIES); do
    if curl -sf "$HEALTH_URL" > /dev/null 2>&1; then
        echo "healthy after ${i}s"
        exit 0
    fi
    sleep "$SLEEP"
done

echo "ERROR: health check failed after $((RETRIES * SLEEP))s"
exit 1