#!/bin/bash
# FIXED backup script v3 - uses rsync with exclusions for speed

set -e

BACKUP_DIR="$HOME/.openclaw/workspace"
STATE_DIR="$HOME/.openclaw"
REPO_DIR="/tmp/openclaw-backup-cron-$$"
GITEA_TOKEN="ba94c160b97c3a0fa5cf528ecc107eb2c8cddaa7"
REPO_URL="http://git:${GITEA_TOKEN}@gitea.kangaroo-eel.ts.net:3000/Anthony/openclaw-backup.git"
LOG_FILE="$HOME/.openclaw/workspace/logs/backup.log"
GOTIFY_URL="http://runtipi.kangaroo-eel.ts.net:8129"
GOTIFY_TOKEN="AGoV3cAUyUMDbyt"

log() {
    echo "[$(date '+%Y-%m-%d %H:%M:%S')] $1" | tee -a "$LOG_FILE"
}

notify() {
    local title="$1"
    local message="$2"
    local priority="${3:-5}"
    curl -s -X POST \
        -H 'Content-Type: application/json' \
        "${GOTIFY_URL}/message?token=${GOTIFY_TOKEN}" \
        -d "{\"title\": \"${title}\", \"message\": \"${message}\", \"priority\": ${priority}}" > /dev/null || true
}

# Ensure log directory exists
mkdir -p "$(dirname "$LOG_FILE")"

log "Starting backup..."

# Clean up any old temp repo
rm -rf "$REPO_DIR"

# Clone repo fresh
log "Cloning backup repo..."
if ! git clone "$REPO_URL" "$REPO_DIR" 2>> "$LOG_FILE"; then
    log "ERROR: Failed to clone repo"
    notify "🚨 Backup Failed" "Failed to clone Gitea repo" 8
    exit 1
fi

cd "$REPO_DIR"

# Backup workspace files using rsync (respects .gitignore patterns)
log "Backing up workspace..."
if command -v rsync &> /dev/null; then
    # Use rsync with delete and exclusions
    rsync -av --delete \
        --exclude='.git' \
        --exclude='target/' \
        --exclude='*.rlib' \
        --exclude='*.rmeta' \
        --exclude='*.so' \
        --exclude='node_modules/' \
        "$BACKUP_DIR/" "$REPO_DIR/" 2>/dev/null || true
else
    # Fallback to cp but clean up excluded dirs after
    find "$REPO_DIR" -mindepth 1 -maxdepth 1 ! -name '.git' -exec rm -rf {} + 2>/dev/null || true
    cp -r "$BACKUP_DIR"/* "$REPO_DIR/" 2>/dev/null || true
    # Remove build artifacts that shouldn't be backed up
    find "$REPO_DIR" -type d -name 'target' -exec rm -rf {} + 2>/dev/null || true
fi

# Backup state directory to openclaw-state/
log "Backing up state directory..."
rm -rf "$REPO_DIR/openclaw-state"
mkdir -p "$REPO_DIR/openclaw-state/cron" "$REPO_DIR/openclaw-state/devices" "$REPO_DIR/openclaw-state/skills" 2>/dev/null || true

# Copy critical state files
cp "$STATE_DIR/openclaw.json" "$REPO_DIR/openclaw-state/" 2>/dev/null || true
cp -r "$STATE_DIR/cron"/* "$REPO_DIR/openclaw-state/cron/" 2>/dev/null || true
cp "$STATE_DIR/devices/paired.json" "$REPO_DIR/openclaw-state/devices/" 2>/dev/null || true
# Also backup skills metadata if it exists
cp -r "$STATE_DIR/skills"/*.json "$REPO_DIR/openclaw-state/skills/" 2>/dev/null || true

# Update manifest
log "Updating manifest..."
cat > "$REPO_DIR/BACKUP_MANIFEST.md" << EOF
# OpenClaw Backup
Generated: $(date '+%Y-%m-%d %H:%M:%S')

## Contents
- skills/ - All installed skills and configs
- automations/ - Custom automations (morning briefing, etc.)
- memory/ - Long-term memory and daily notes
- *.md - Core configuration files
- openclaw-state/ - CRITICAL: Gateway config, cron jobs, skills metadata
  - openclaw.json - Gateway config (models, plugins, channels)
  - cron/ - All scheduled jobs
  - devices/ - Paired devices
  - skills/ - Skill metadata

## Backup Host
Hostname: $(hostname)
User: $(whoami)

## How to Restore
1. Clone this repo
2. Copy workspace files to ~/.openclaw/workspace/
3. Copy openclaw-state/ files to ~/.openclaw/ preserving structure
4. Restart OpenClaw gateway

See restore-from-gittea.sh in scripts/ for automated restore.
EOF

# Configure git
git config user.email "krillyclaw@gmail.com"
git config user.name "Krilly the Crab"

# CRITICAL FIX: Always stage all changes (including deletions) before checking status
git add -A 2>> "$LOG_FILE"

# Check if there are STAGED changes (not just working tree changes)
if git diff --cached --quiet 2>> "$LOG_FILE"; then
    log "No changes to commit"
    notify "⚠️ Backup" "No changes to backup (already up to date)" 3
    rm -rf "$REPO_DIR"
    exit 0
fi

# Commit the staged changes
log "Committing changes..."
git commit -m "Backup: $(date '+%Y-%m-%d %H:%M:%S')" 2>> "$LOG_FILE"

# Push to remote
log "Pushing changes..."
if ! git push origin main 2>> "$LOG_FILE"; then
    log "ERROR: Failed to push"
    notify "🚨 Backup Failed" "Failed to push to Gitea" 8
    rm -rf "$REPO_DIR"
    exit 1
fi

COMMIT_HASH=$(git rev-parse --short HEAD)
log "Backup complete! ($COMMIT_HASH)"

# VERIFICATION: Confirm the push actually happened by checking remote
log "Verifying push..."
REMOTE_HASH=$(git ls-remote --heads "$REPO_URL" main 2>/dev/null | head -1 | cut -f1 | cut -c1-7)
if [ "$COMMIT_HASH" != "$REMOTE_HASH" ]; then
    log "ERROR: Local commit ($COMMIT_HASH) doesn't match remote ($REMOTE_HASH)"
    notify "🚨 BACKUP FAILED" "Push verification failed - commit not on remote" 8
    rm -rf "$REPO_DIR"
    exit 1
fi

log "✅ Verified: commit $COMMIT_HASH is on remote"
notify "✅ OpenClaw Backup" "Backup to Gitea completed successfully (commit $COMMIT_HASH)" 5

# Clean up
rm -rf "$REPO_DIR"