#!/usr/bin/env bash
set -euo pipefail

# WetGIT Forgejo backup — managed by Ansible
# Uses Forgejo's built-in dump command (no downtime).

BACKUP_DIR="{{ app_dir }}/backups"
TIMESTAMP=$(date +%Y%m%d_%H%M%S)
RETENTION_DAYS=14
LOG_PREFIX="[$(date '+%Y-%m-%d %H:%M:%S')]"

echo "$LOG_PREFIX Starting WetGit backup..."

# Forgejo dump (runs inside container, no service stop needed)
docker exec wetgit-forgejo forgejo dump \
    --type tar.gz \
    --file /data/backup-${TIMESTAMP}.tar.gz \
    2>&1 || {
    echo "$LOG_PREFIX ERROR: Forgejo dump failed"
    exit 1
}

# Move dump from container volume to backup dir
mv "{{ forgejo_data_dir }}/backup-${TIMESTAMP}.tar.gz" \
    "$BACKUP_DIR/wetgit-forgejo-${TIMESTAMP}.tar.gz"

# Also backup Redis AOF
docker exec wetgit-redis redis-cli BGSAVE 2>/dev/null || true
sleep 2
cp "{{ data_dir }}/redis/dump.rdb" \
    "$BACKUP_DIR/wetgit-redis-${TIMESTAMP}.rdb" 2>/dev/null || true

# Clean old backups
find "$BACKUP_DIR" -name "wetgit-forgejo-*.tar.gz" -mtime +${RETENTION_DAYS} -delete
find "$BACKUP_DIR" -name "wetgit-redis-*.rdb" -mtime +${RETENTION_DAYS} -delete

echo "$LOG_PREFIX Backup complete: wetgit-forgejo-${TIMESTAMP}.tar.gz"