#!/bin/bash
# Auto-deploy script for LXC 139 (nginx proxy manager)
# Handles: landing/index.html
# Triggered by: Gitea webhook on push to main
set -euo pipefail

REPO_DIR="/opt/matrix-config"
LOG="/var/log/matrix-deploy.log"
CLONE_URL="https://code.lotusguild.org/LotusGuild/matrix.git"

exec >> "$LOG" 2>&1
echo "=== $(date) === LXC139 deploy triggered ==="

# Clone or pull
if [ ! -d "$REPO_DIR/.git" ]; then
    git clone "$CLONE_URL" "$REPO_DIR"
    CHANGED="landing/index.html"
else
    cd "$REPO_DIR"
    git fetch --all
    PREV=$(git rev-parse HEAD)
    git reset --hard origin/main
    NEW=$(git rev-parse HEAD)
    CHANGED=$(git diff --name-only "$PREV" "$NEW")
    echo "Changed files: $CHANGED"
fi

if echo "$CHANGED" | grep -q '^landing/index.html'; then
    echo "Deploying landing page..."
    mkdir -p /var/www/matrix-landing
    cp "$REPO_DIR/landing/index.html" /var/www/matrix-landing/index.html
    nginx -s reload
    echo "✓ landing page deployed and nginx reloaded"
fi

echo "=== $(date) === LXC139 deploy complete ==="