// Package sys
// @Link  https://github.com/bufanyun/hotgo
// @Copyright  Copyright (c) 2026 HotGo
// @Author  Ms <133814250@qq.com>
// @License  https://github.com/bufanyun/hotgo/blob/master/LICENSE
package sys

import (
	"context"
	"hotgo/internal/consts"
	"hotgo/internal/library/contexts"
	"hotgo/internal/library/imkafka"
	"hotgo/internal/library/imtenant"
	"hotgo/internal/model/input/sysin"
	"hotgo/internal/service"
	"strings"

	"github.com/gogf/gf/v2/errors/gerror"
	"github.com/gogf/gf/v2/util/gconv"
)

type sSysImKafkaCommand struct{}

func NewSysImKafkaCommand() *sSysImKafkaCommand {
	return &sSysImKafkaCommand{}
}

func init() {
	service.RegisterSysImKafkaCommand(NewSysImKafkaCommand())
}

func (s *sSysImKafkaCommand) List(ctx context.Context, in *sysin.ImKafkaCommandListInp) (list []*sysin.ImKafkaCommandListModel, totalCount int, err error) {
	if err = in.Filter(ctx); err != nil {
		return
	}
	// 强制租户范围：商户绑定账号忽略前端所选租户，平台管理员使用所选租户
	scope, err := resolveImAdminScope(ctx, in.TenantId)
	if err != nil {
		return
	}
	where, args := buildImKafkaCommandWhere(in, scope.TenantId)
	db := imtenant.RegistryDB()
	totalValue, err := db.GetValue(ctx, "SELECT COUNT(*) FROM im_admin_commands "+where, args...)
	if err != nil {
		err = gerror.Wrap(err, "获取IM后台命令总数失败，请稍后重试！")
		return
	}
	totalCount = totalValue.Int()
	page := in.Page
	if page <= 0 {
		page = 1
	}
	perPage := in.PerPage
	if perPage <= 0 {
		perPage = 20
	}
	offset := (page - 1) * perPage
	query := `SELECT id,command_id,tenant_id,tenant_code,event_id,event_type,biz_type,biz_id,idempotency_key,
		status,reason,message,sent_at,completed_at,created_by,created_at,updated_at
		FROM im_admin_commands ` + where + ` ORDER BY id DESC LIMIT ? OFFSET ?`
	queryArgs := append(append([]any{}, args...), perPage, offset)
	rows, err := db.GetAll(ctx, query, queryArgs...)
	if err != nil {
		err = gerror.Wrap(err, "获取IM后台命令列表失败，请稍后重试！")
		return
	}
	if err = rows.Structs(&list); err != nil {
		err = gerror.Wrap(err, "解析IM后台命令列表失败，请稍后重试！")
	}
	return
}

func (s *sSysImKafkaCommand) View(ctx context.Context, in *sysin.ImKafkaCommandViewInp) (res *sysin.ImKafkaCommandViewModel, err error) {
	if err = in.Filter(ctx); err != nil {
		return nil, err
	}
	query := `SELECT id,command_id,tenant_id,tenant_code,event_id,event_type,biz_type,biz_id,idempotency_key,
		status,reason,message,CAST(payload AS CHAR) payload,CAST(envelope AS CHAR) envelope,CAST(result AS CHAR) result,
		sent_at,completed_at,created_by,created_at,updated_at FROM im_admin_commands WHERE `
	args := []any{}
	if in.Id > 0 {
		query += "id=?"
		args = append(args, in.Id)
	} else {
		query += "command_id=?"
		args = append(args, in.CommandId)
	}
	query += " LIMIT 1"
	row, err := imtenant.RegistryDB().GetOne(ctx, query, args...)
	if err != nil {
		return nil, gerror.Wrap(err, "获取IM后台命令详情失败，请稍后重试！")
	}
	if row.IsEmpty() {
		return nil, nil
	}
	if err = row.Struct(&res); err != nil {
		return nil, gerror.Wrap(err, "解析IM后台命令详情失败，请稍后重试！")
	}
	// 后置校验记录归属租户是否在操作者允许范围内
	if err = ensureImRecordTenantAllowed(ctx, res.TenantId); err != nil {
		return nil, err
	}
	return
}

func buildImKafkaCommandWhere(in *sysin.ImKafkaCommandListInp, scopeTenantId int64) (string, []any) {
	parts := []string{"tenant_id=?"}
	args := []any{scopeTenantId}
	if in.CommandId != "" {
		parts = append(parts, "command_id LIKE ?")
		args = append(args, "%"+in.CommandId+"%")
	}
	if in.EventId != "" {
		parts = append(parts, "event_id LIKE ?")
		args = append(args, "%"+in.EventId+"%")
	}
	if in.EventType != "" {
		parts = append(parts, "event_type LIKE ?")
		args = append(args, "%"+in.EventType+"%")
	}
	if in.BizType != "" {
		parts = append(parts, "biz_type=?")
		args = append(args, in.BizType)
	}
	if in.BizId != "" {
		parts = append(parts, "biz_id LIKE ?")
		args = append(args, "%"+in.BizId+"%")
	}
	if in.Status != "" {
		parts = append(parts, "status=?")
		args = append(args, in.Status)
	}
	if len(in.CreatedAt) == 2 {
		parts = append(parts, "created_at BETWEEN ? AND ?")
		args = append(args, in.CreatedAt[0], in.CreatedAt[1])
	}
	return "WHERE " + strings.Join(parts, " AND "), args
}

func (s *sSysImKafkaCommand) CacheInvalidate(ctx context.Context, in *sysin.ImKafkaCacheInvalidateInp) (res *sysin.ImKafkaEventModel, err error) {
	if err = in.Filter(ctx); err != nil {
		return nil, err
	}
	// 校验目标租户是否在操作者允许范围内
	tenant, err := lookupImTenantByCode(ctx, in.TenantCode)
	if err != nil {
		return nil, err
	}
	if err = ensureImRecordTenantAllowed(ctx, tenant.Id); err != nil {
		return nil, err
	}
	user := contexts.GetUser(ctx)
	actor := &imkafka.Actor{
		Type: "admin",
		ID:   gconv.String(contexts.GetUserId(ctx)),
	}
	if user != nil {
		actor.DisplayName = user.RealName
	}
	payload := map[string]any{
		"tenant_code": in.TenantCode,
		"namespace":   in.Namespace,
		"keys":        in.Keys,
		"reason":      in.Reason,
	}
	eventID, err := imkafka.PublishEvent(ctx, imkafka.EventInput{
		Topic:      consts.QueueImCacheInvalidateTopic,
		TenantCode: in.TenantCode,
		EventType:  "cache.invalidate",
		BizType:    "cache",
		BizID:      in.Namespace,
		Actor:      actor,
		Payload:    payload,
		CreatedBy:  contexts.GetUserId(ctx),
	})
	if err != nil {
		return nil, err
	}
	return &sysin.ImKafkaEventModel{EventId: eventID}, nil
}

func (s *sSysImKafkaCommand) WorkbenchEvent(ctx context.Context, in *sysin.ImKafkaWorkbenchEventInp) (res *sysin.ImKafkaEventModel, err error) {
	if err = in.Filter(ctx); err != nil {
		return nil, err
	}
	// 校验目标租户是否在操作者允许范围内
	tenant, err := lookupImTenantByCode(ctx, in.TenantCode)
	if err != nil {
		return nil, err
	}
	if err = ensureImRecordTenantAllowed(ctx, tenant.Id); err != nil {
		return nil, err
	}
	user := contexts.GetUser(ctx)
	actor := &imkafka.Actor{
		Type: "admin",
		ID:   gconv.String(contexts.GetUserId(ctx)),
	}
	if user != nil {
		actor.DisplayName = user.RealName
	}
	payload := in.Payload
	payload["tenant_code"] = in.TenantCode
	payload["source"] = "admin"
	eventID, err := imkafka.PublishEvent(ctx, imkafka.EventInput{
		Topic:      consts.QueueImWorkbenchEventTopic,
		TenantCode: in.TenantCode,
		EventType:  in.EventType,
		BizType:    "workbench",
		BizID:      in.BizId,
		Actor:      actor,
		Payload:    payload,
		CreatedBy:  contexts.GetUserId(ctx),
	})
	if err != nil {
		return nil, err
	}
	return &sysin.ImKafkaEventModel{EventId: eventID}, nil
}