package sync

import (
	"context"
	"time"

	"gitea.redpowerfuture.com/red-future/common/db/gfdb"
	"github.com/sirupsen/logrus"
)

// InsertRows 批量写入数据
func InsertRows(ctx context.Context, tableName string, conflictKeys []string, rows []map[string]interface{}) (int, error) {
	if len(rows) == 0 {
		return 0, nil
	}

	now := time.Now()
	for i := range rows {
		if rows[i] == nil {
			rows[i] = make(map[string]interface{})
		}
		// 始终覆盖 updated_at；不设置 created_at 让数据库维护首次值（upsert 时不会覆盖）
		rows[i]["updated_at"] = now
	}

	batchSize := 100
	total := 0
	for i := 0; i < len(rows); i += batchSize {
		end := i + batchSize
		if end > len(rows) {
			end = len(rows)
		}
		batch := rows[i:end]

		m := gfdb.DB(ctx).Model(ctx, tableName).Data(batch)
		if len(conflictKeys) > 0 {
			keys := make([]interface{}, len(conflictKeys))
			for j, k := range conflictKeys {
				keys[j] = k
			}
			m = m.OnConflict(keys...)
		}
		_, err := m.Save()
		if err != nil {
			logrus.Errorf("批量写入 %s 失败: %v", tableName, err)
			for _, row := range batch {
				mm := gfdb.DB(ctx).Model(ctx, tableName).Data(row)
				if len(conflictKeys) > 0 {
					keys := make([]interface{}, len(conflictKeys))
					for j, k := range conflictKeys {
						keys[j] = k
					}
					mm = mm.OnConflict(keys...)
				}
				if _, e := mm.Save(); e != nil {
					logrus.Errorf("逐条写入失败: %v", e)
				} else {
					total++
				}
			}
		} else {
			total += len(batch)
		}
	}
	return total, nil
}