package rolesync

import (
	"context"
	"time"

	"github.com/gogf/gf/v2/database/gdb"
	"github.com/gogf/gf/v2/errors/gerror"
	"github.com/gogf/gf/v2/frame/g"
	"github.com/google/uuid"
	"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/rabbitmq"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/library/rolepolicy"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/model"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/model/entity"
)

type deferRecordingContextKey struct{}

func DeferRecording(ctx context.Context) context.Context {
	return context.WithValue(ctx, deferRecordingContextKey{}, true)
}

func EnqueueRole(ctx context.Context, roleID, actorID int64) error {
	if deferred, _ := ctx.Value(deferRecordingContextKey{}).(bool); deferred {
		return nil
	}
	if gdb.TXFromCtx(ctx, g.DB().GetGroup()) != nil {
		return gerror.New("权限下发必须在数据库事务提交后入队")
	}
	ctx, cancel := context.WithTimeout(context.WithoutCancel(ctx), 15*time.Second)
	defer cancel()
	var role *entity.SysRole
	if err := dao.SysRole.Ctx(ctx).Master().Where("role_id", roleID).Scan(&role); err != nil {
		return err
	}
	if role == nil {
		return nil
	}
	target, err := rolepolicy.TemplateForRoles(ctx, roleID)
	if err != nil {
		return gerror.Wrap(err, "角色已保存，但无法识别代理模板，请检查系统参数后重新保存")
	}
	if target == nil {
		if role.IsPass != 1 {
			return nil
		}
		configured, err := dao.SysConfig.Ctx(ctx).Master().Where("tenant_id", consts.DefaultSystemTenantCode).Where("config_key", rolepolicy.TemplateConfigKey).Count()
		if err != nil {
			return gerror.Wrap(err, "角色已保存，但无法识别代理模板，请稍后重新保存")
		}
		if configured > 0 {
			return nil
		}
	}
	template, err := rolepolicy.Template(ctx)
	if err != nil {
		return gerror.Wrap(err, "角色已保存，但代理模板配置异常，无法下发；请修复模板后重新保存")
	}
	message := &model.AgentRoleSyncMessage{
		TaskId: uuid.NewString(), TenantId: role.TenantId, SourceRoleId: role.RoleId,
		SourceDeptId: role.DeptId, ActorId: actorID,
		TemplateRole: template != nil && template.RoleId == role.RoleId,
	}
	if err := publishRoleSync(ctx, message); err != nil {
		return gerror.Wrapf(err, "角色已保存，但下级权限下发任务入队失败，请稍后重新保存（任务ID：%s）", message.TaskId)
	}
	return nil
}

var publishRoleSync = func(ctx context.Context, message *model.AgentRoleSyncMessage) error {
	return rabbitmq.PublishConfirmed(ctx, consts.QueueAgentRoleSync, message)
}