// package system
// @Link  https://github.com/xiujiecn/xiu-admin
// @Copyright  Copyright (c) 2025 LiXiujie
// @Author  Lxj <xxx@example.com>
// @License  https://github.com/xiujiecn/xiu-admin/blob/master/LICENSE
package system

import (
	"context"
	"errors"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/consts"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/dao"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/library/contexts"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/library/event"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/library/rolepolicy"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/library/rolesync"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/library/xgorm/handler"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/model"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/model/do"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/model/entity"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/service"

	"github.com/gogf/gf/v2/database/gdb"
	"github.com/gogf/gf/v2/frame/g"
	"github.com/gogf/gf/v2/os/gtime"
	"github.com/gogf/gf/v2/util/gconv"
)

type sSysConfig struct {
}

func NewSysConfig() *sSysConfig {
	return &sSysConfig{}
}

func init() {
	service.RegisterSysConfig(NewSysConfig())
}

func (l *sSysConfig) Model(ctx context.Context, option ...*handler.Option) *gdb.Model {
	if len(option) == 0 {
		option = append(option, &handler.Option{
			FilterTenant: true,
			FilterAuth:   false,
		})
	}
	return handler.Model(dao.SysConfig.Ctx(ctx), option...)
}

func (l *sSysConfig) ModelQuery(ctx context.Context, option ...*handler.Option) *gdb.Model {
	if len(option) == 0 {
		option = append(option, &handler.Option{
			FilterTenant: true,
			FilterAuth:   false,
		})
	}
	return handler.Model(service.MemoryDB().DB(ctx).Ctx(ctx).Model(dao.SysConfig.Table()), option...)
}

func (s *sSysConfig) List(ctx context.Context, param *model.SysConfigListParam) (items []*model.SysConfigListModel, total int, err error) {
	m := s.ModelQuery(ctx)

	if param.ConfigName != "" {
		m = m.WhereLike(dao.SysConfig.Columns().ConfigName, "%"+param.ConfigName+"%")
	}

	if param.ConfigKey != "" {
		m = m.WhereLike(dao.SysConfig.Columns().ConfigKey, "%"+param.ConfigKey+"%")
	}

	if param.ConfigType != "" {
		m = m.Where(dao.SysConfig.Columns().ConfigType, param.ConfigType)
	}

	if param.ConfigValue != "" {
		m = m.WhereLike(dao.SysConfig.Columns().ConfigValue, "%"+param.ConfigValue+"%")
	}

	if len(param.CreatedAt) > 0 {
		startTime := gtime.NewFromStr(param.CreatedAt[0])
		endTime := gtime.NewFromStr(param.CreatedAt[1])
		m = m.WhereBetween(dao.SysConfig.Columns().CreatedAt, startTime, endTime.EndOfDay())
	}

	total, err = m.Count()
	if err != nil {
		return nil, 0, err
	}

	err = m.Page(param.Page, param.PageSize).Order(dao.SysConfig.Columns().ConfigId, "ASC").Scan(&items)
	if err != nil {
		return nil, 0, err
	}
	return
}

func (s *sSysConfig) Add(ctx context.Context, param *model.SysConfigAddParam) (output *model.SysConfigAddModel, err error) {
	if param == nil || param.ConfigName == "" {
		return nil, errors.New("配置名称不能为空")
	}
	if param.ConfigKey == rolepolicy.TemplateConfigKey {
		if !contexts.IsSuperAdmin(ctx) || contexts.GetTenantId(ctx) != consts.DefaultSystemTenantCode {
			return nil, errors.New("仅平台超级管理员可配置代理模板")
		}
		if _, err := rolepolicy.ValidateTemplate(ctx, param.ConfigValue); err != nil {
			return nil, err
		}
		count, err := dao.SysConfig.Ctx(ctx).Where("tenant_id", consts.DefaultSystemTenantCode).Where("config_key", rolepolicy.TemplateConfigKey).Count()
		if err != nil {
			return nil, err
		}
		if count > 0 {
			return nil, errors.New("代理模板参数已存在")
		}
	}
	m := s.Model(ctx)

	data := &do.SysConfig{}
	gconv.Struct(param, data)
	data.TenantId = contexts.GetTenantId(ctx)
	data.CreatedDept = contexts.GetDeptId(ctx)
	data.CreatedBy = contexts.GetUserId(ctx)
	data.CreatedAt = gtime.Now()
	data.UpdatedBy = contexts.GetUserId(ctx)
	data.UpdatedAt = gtime.Now()

	var lastInsertId int64
	err = g.DB().Transaction(ctx, func(ctx context.Context, tx gdb.TX) error {
		var insertErr error
		lastInsertId, insertErr = m.Ctx(ctx).Data(data).InsertAndGetId()
		if insertErr != nil {
			return insertErr
		}
		return nil
	})
	if err != nil {
		return nil, err
	}
	event.EventsInstance().Emit(ctx, consts.EventKeyDBSysConfigCreate, lastInsertId, data.TenantId, data.ConfigKey)
	if param.ConfigKey == rolepolicy.TemplateConfigKey {
		template, resolveErr := rolepolicy.Template(ctx)
		if resolveErr != nil {
			return nil, resolveErr
		}
		if err := rolesync.EnqueueRole(ctx, template.RoleId, contexts.GetUserId(ctx)); err != nil {
			return nil, err
		}
	}

	output = &model.SysConfigAddModel{
		ConfigId: lastInsertId,
	}
	return
}

func (s *sSysConfig) Edit(ctx context.Context, param *model.SysConfigEditParam) (output *model.SysConfigEditModel, err error) {
	if param == nil || param.ConfigId == 0 {
		return nil, errors.New("配置ID不能为空")
	}

	var current *entity.SysConfig
	if err := s.Model(ctx).Where("config_id", param.ConfigId).Scan(&current); err != nil {
		return nil, err
	}
	if current == nil {
		return nil, errors.New("参数不存在")
	}
	nextKey, nextValue := current.ConfigKey, current.ConfigValue
	if param.ConfigKey != nil {
		nextKey = *param.ConfigKey
	}
	if param.ConfigValue != nil {
		nextValue = *param.ConfigValue
	}
	if current.ConfigKey == rolepolicy.TemplateConfigKey || nextKey == rolepolicy.TemplateConfigKey {
		if !contexts.IsSuperAdmin(ctx) || current.TenantId != consts.DefaultSystemTenantCode {
			return nil, errors.New("仅平台超级管理员可配置代理模板")
		}
		if current.ConfigKey != nextKey {
			return nil, errors.New("代理模板参数键不允许更改，请修改角色ID")
		}
		nextTemplate, err := rolepolicy.ValidateTemplate(ctx, nextValue)
		if err != nil {
			return nil, err
		}
		previousTemplate, previousErr := rolepolicy.ValidateTemplate(ctx, current.ConfigValue)
		if previousErr == nil && previousTemplate.DeptId != nextTemplate.DeptId {
			return nil, errors.New("模板角色必须属于同一机构，跨机构切换需要迁移下级授权")
		}
	}
	data := &do.SysConfig{}
	gconv.Struct(param, data)
	data.UpdatedBy = contexts.GetUserId(ctx)
	data.UpdatedAt = gtime.Now()
	data.ConfigId = nil

	m := s.Model(ctx)
	err = g.DB().Transaction(ctx, func(ctx context.Context, tx gdb.TX) error {
		if _, updateErr := m.Ctx(ctx).Data(data).Where(dao.SysConfig.Columns().ConfigId, param.ConfigId).Update(); updateErr != nil {
			return updateErr
		}
		return nil
	})
	if err != nil {
		return nil, err
	}
	event.EventsInstance().Emit(ctx, consts.EventKeyDBSysConfigUpdate, param.ConfigId, contexts.GetTenantId(ctx), nextKey)
	if nextKey == rolepolicy.TemplateConfigKey {
		template, resolveErr := rolepolicy.Template(ctx)
		if resolveErr != nil {
			return nil, resolveErr
		}
		if err := rolesync.EnqueueRole(ctx, template.RoleId, contexts.GetUserId(ctx)); err != nil {
			return nil, err
		}
	}

	output = &model.SysConfigEditModel{
		ConfigId: param.ConfigId,
	}
	return
}

func (s *sSysConfig) Delete(ctx context.Context, param *model.SysConfigDeleteParam) (output *model.SysConfigDeleteModel, err error) {
	m := s.Model(ctx)

	if len(param.ConfigIds) == 0 {
		return nil, errors.New("请选择要删除的配置")
	}
	count, checkErr := dao.SysConfig.Ctx(ctx).WhereIn("config_id", param.ConfigIds).Where("tenant_id", consts.DefaultSystemTenantCode).Where("config_key", rolepolicy.TemplateConfigKey).Count()
	if checkErr != nil {
		return nil, checkErr
	}
	if count > 0 {
		return nil, errors.New("代理模板参数不能删除，请通过修改角色ID切换模板")
	}
	m = m.WhereIn(dao.SysConfig.Columns().ConfigId, param.ConfigIds)
	data := make([]entity.SysConfig, 0)
	err = m.Scan(&data)
	if err != nil {
		return nil, err
	}
	for _, v := range data {
		if v.ConfigType == "Y" {
			return nil, errors.New("系统内置配置不能删除")
		}
	}

	_, err = m.Delete()
	if err != nil {
		return nil, err
	}
	event.EventsInstance().Emit(ctx, consts.EventKeyDBSysConfigDelete, param.ConfigIds, contexts.GetTenantId(ctx))
	return &model.SysConfigDeleteModel{
		ConfigIds: param.ConfigIds,
	}, nil
}

func (s *sSysConfig) View(ctx context.Context, param *model.SysConfigViewParam) (output *model.SysConfigViewModel, err error) {
	m := s.ModelQuery(ctx)

	err = m.Where(dao.SysConfig.Columns().ConfigId, param.ConfigId).Scan(&output)
	if err != nil {
		return nil, err
	}

	return
}

func (s *sSysConfig) GetConfigByKey(ctx context.Context, configKey string) (config *entity.SysConfig, err error) {
	m := s.ModelQuery(ctx)
	err = m.Where(dao.SysConfig.Columns().ConfigKey, configKey).Scan(&config)
	if err != nil {
		return nil, err
	}
	return
}