package systemconfig

import (
	"context"
	"strconv"
	"strings"

	"hfb_sys/backend/internal/modules/rentergrowth"
)

func (s *Service) Update(ctx context.Context, actorID uint64, key string, req UpdateRequest, meta AuditMeta) (*ConfigDTO, error) {
	if s.repo == nil {
		return nil, ErrDependencyUnavailable
	}
	// 备份定时只能通过独立接口修改，避免拥有普通系统配置权限的管理员改变备份策略。
	if strings.HasPrefix(key, "backup.") {
		return nil, ErrInvalidConfig
	}
	if key == "" || (req.Value == "" && key != "integration.paddle_ocr_token") {
		return nil, ErrInvalidConfig
	}
	if key == "listing.publish_cooldown_minutes" {
		minutes, err := strconv.Atoi(strings.TrimSpace(req.Value))
		if err != nil || minutes < 0 {
			return nil, ErrInvalidConfig
		}
	}
	if key == rentergrowth.ConfigKey {
		cfg, err := rentergrowth.ParseConfigValue(req.Value)
		if err != nil {
			return nil, ErrInvalidConfig
		}
		value, err := rentergrowth.MarshalConfig(cfg)
		if err != nil {
			return nil, ErrInvalidConfig
		}
		req.Value = value
	}
	return s.repo.Update(ctx, actorID, key, req, meta)
}

func (s *Service) UpdateBackupSchedule(ctx context.Context, actorID uint64, req BackupScheduleDTO, meta AuditMeta) (*BackupScheduleDTO, error) {
	if s.repo == nil || req.FullHour < 0 || req.FullHour > 23 || req.FullMinute < 0 || req.FullMinute > 59 || req.BinlogIntervalMinutes < 1 || req.BinlogIntervalMinutes > 5 {
		return nil, ErrInvalidConfig
	}
	updates := []struct {
		key         string
		value       string
		description string
	}{
		{"backup.schedule_enabled", strconv.FormatBool(req.Enabled), "在线备份定时任务是否启用"},
		{"backup.full_hour", strconv.Itoa(req.FullHour), "每日全量备份小时（Asia/Shanghai）"},
		{"backup.full_minute", strconv.Itoa(req.FullMinute), "每日全量备份分钟（Asia/Shanghai）"},
		{"backup.binlog_interval_minutes", strconv.Itoa(req.BinlogIntervalMinutes), "binlog 归档间隔分钟（1-5）"},
	}
	for _, item := range updates {
		if _, err := s.repo.Update(ctx, actorID, item.key, UpdateRequest{Value: item.value, Description: item.description}, meta); err != nil {
			return nil, err
		}
	}
	return &req, nil
}