#!/usr/bin/env bash
# Sync content between local and server
#
# Usage:
#   ./sync.sh pull          # Server → Local (before starting dev)
#   ./sync.sh push          # Local → Server (after local edits)
#   ./sync.sh watch         # Auto-push on local file changes (requires fswatch)
#   ./sync.sh status        # Show diff between local and server

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
cd "$SCRIPT_DIR"

SERVER="root@167.86.74.105"
SSH_KEY="$HOME/.ssh/contabo_rsa"
REMOTE_CONTENT="/opt/rustycms/content"
LOCAL_CONTENT="./content"

SSH_OPTS="-o StrictHostKeyChecking=no -i $SSH_KEY"
RSYNC_OPTS="-avz --delete -e \"ssh $SSH_OPTS\""

# Colors
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m'

pull() {
  echo -e "${BLUE}← Pulling content from server...${NC}"
  rsync -avz --delete \
    -e "ssh $SSH_OPTS" \
    "$SERVER:$REMOTE_CONTENT/" \
    "$LOCAL_CONTENT/"
  echo -e "${GREEN}✓ Pull complete${NC}"
}

push() {
  echo -e "${BLUE}→ Pushing content to server...${NC}"
  rsync -avz --delete \
    -e "ssh $SSH_OPTS" \
    "$LOCAL_CONTENT/" \
    "$SERVER:$REMOTE_CONTENT/"
  echo -e "${GREEN}✓ Push complete${NC}"
}

status() {
  echo -e "${BLUE}~ Comparing local ↔ server...${NC}"
  rsync -avzn --delete \
    -e "ssh $SSH_OPTS" \
    "$LOCAL_CONTENT/" \
    "$SERVER:$REMOTE_CONTENT/" \
    | grep -v "^sending\|^sent\|^total\|^$" || true
  echo -e "${YELLOW}(dry-run, no changes made)${NC}"
}

watch() {
  if ! command -v fswatch &>/dev/null; then
    echo "fswatch not found. Install with: brew install fswatch"
    exit 1
  fi
  echo -e "${BLUE}👁  Watching ./content for changes (Ctrl+C to stop)...${NC}"
  fswatch -o "$LOCAL_CONTENT" | while read -r _; do
    echo -e "${BLUE}→ Change detected, pushing...${NC}"
    rsync -az --delete \
      -e "ssh $SSH_OPTS" \
      "$LOCAL_CONTENT/" \
      "$SERVER:$REMOTE_CONTENT/" \
      && echo -e "${GREEN}✓ Pushed$(date +'  %H:%M:%S')${NC}"
  done
}

case "${1:-}" in
  pull)   pull ;;
  push)   push ;;
  status) status ;;
  watch)  watch ;;
  *)
    echo "Usage: ./sync.sh [pull|push|status|watch]"
    echo ""
    echo "  pull    Server → Local  (fetch latest content before dev)"
    echo "  push    Local → Server  (upload local edits)"
    echo "  status  Show what would change on push (dry-run)"
    echo "  watch   Auto-push on local file changes (requires fswatch)"
    exit 1
    ;;
esac