package system

import (
	"context"
	"time"

	"kra/app/system/biz"
	"kra/pkg/database/pagination"

	"gorm.io/gorm"
)

type loginLogPO struct {
	ID                  uint `gorm:"primaryKey"`
	CreatedAt           time.Time
	UpdatedAt           time.Time
	DeletedAt           gorm.DeletedAt `gorm:"index"`
	Username, IP        string
	Status              bool
	ErrorMessage, Agent string
	UserID              uint
}

func (loginLogPO) TableName() string { return "sys_login_logs" }

func (r *auditRecorderRepo) RecordLogin(ctx context.Context, v *biz.LoginLog) error {
	if !r.data.DatabaseReady() {
		// The login endpoint remains reachable before database initialization;
		// skip the audit write until storage is ready.
		return nil
	}
	return r.data.DB().WithContext(ctx).Create(&loginLogPO{Username: v.Username, IP: v.IP, Status: v.Status, ErrorMessage: v.ErrorMessage, Agent: v.Agent, UserID: v.UserID}).Error
}
func loginFromPO(v loginLogPO) *biz.LoginLog {
	return &biz.LoginLog{ID: v.ID, CreatedAt: v.CreatedAt, UpdatedAt: v.UpdatedAt, Username: v.Username, IP: v.IP, Status: v.Status, ErrorMessage: v.ErrorMessage, Agent: v.Agent, UserID: v.UserID}
}
func (r *auditQueryRepo) ListLogins(ctx context.Context, page, size int, q *biz.LoginLog) ([]*biz.LoginLog, int64, error) {
	db := r.data.DB().WithContext(ctx).Model(&loginLogPO{})
	if q != nil {
		if q.Username != "" {
			db = db.Where("username LIKE ?", "%"+q.Username+"%")
		}
		if q.FilterByStatus {
			db = db.Where("status = ?", q.Status)
		}
	}
	var total int64
	if err := db.Count(&total).Error; err != nil {
		return nil, 0, err
	}
	var pos []loginLogPO
	if err := pagination.ApplyRequired(db.Order("id desc"), page, size, 100).Find(&pos).Error; err != nil {
		return nil, 0, err
	}
	ids := make([]uint, 0, len(pos))
	for _, value := range pos {
		if value.UserID != 0 {
			ids = append(ids, value.UserID)
		}
	}
	users := auditUsers(ctx, r.data.DB().WithContext(ctx), ids)
	out := make([]*biz.LoginLog, 0, len(pos))
	for _, po := range pos {
		value := loginFromPO(po)
		value.User = users[po.UserID]
		out = append(out, value)
	}
	return out, total, nil
}
func (r *auditQueryRepo) FindLogin(ctx context.Context, id uint) (*biz.LoginLog, error) {
	var po loginLogPO
	if err := r.data.DB().WithContext(ctx).First(&po, id).Error; err != nil {
		return nil, err
	}
	return loginFromPO(po), nil
}
func (r *auditQueryRepo) DeleteLogins(ctx context.Context, ids []int) error {
	if len(ids) == 1 && ids[0] == 0 {
		return r.data.DB().WithContext(ctx).Delete(&loginLogPO{}).Error
	}
	return r.data.DB().WithContext(ctx).Delete(&loginLogPO{}, "id IN ?", ids).Error
}