#!/usr/bin/env bash
# hugo-blog deploy script
# Runs on UC server: git pull -> hugo -> docker build+push -> kubectl rollout
set -euo pipefail

REPO_DIR="/root/hugo-blog"
REGISTRY="git.luochen570.cn"
IMAGE="luochen570/hugo-blog"
NAMESPACE="hugo"
DEPLOYMENT="hugo-blog"

cd "$REPO_DIR"

# 1. Pull latest
echo "=== Pull latest ==="
git fetch origin main
LOCAL=$(git rev-parse HEAD)
REMOTE=$(git rev-parse origin/main)
if [ "$LOCAL" = "$REMOTE" ]; then
  echo "Already up to date ($LOCAL). Nothing to do."
  exit 0
fi
git merge --ff-only origin/main

SHA=$(git rev-parse --short HEAD)
echo "New commit: $SHA"

# 2. Hugo build
echo "=== Hugo build ==="
hugo --minify -d public/

# 3. Docker build and push
echo "=== Docker build ==="
docker build -t $REGISTRY/$IMAGE:$SHA -t $REGISTRY/$IMAGE:latest .

echo "=== Docker push ==="
docker login $REGISTRY -u luochen570 --password-stdin < ~/.config/gitea/token
docker push $REGISTRY/$IMAGE:$SHA
docker push $REGISTRY/$IMAGE:latest

# 4. Deploy to k3s
echo "=== k3s rollout ==="
kubectl set image deployment/$DEPLOYMENT -n $NAMESPACE \
  nginx=$REGISTRY/$IMAGE:$SHA
kubectl rollout status deployment/$DEPLOYMENT -n $NAMESPACE --timeout=120s

echo "=== Done: $SHA ==="