package logic

import (
	"fmt"
	"strconv"

	"lone-services/pkg/modelbase"
	"lone-services/pkg/utils"
	"lone-services/services/wecom/internal/dao"
	"lone-services/services/wecom/internal/model"

	jsoniter "github.com/json-iterator/go"
)

func departmentID() int {
	id := utils.GetConfigInt("wecom.department_id")
	if id < utils.NumberOne {
		return utils.NumberOne
	}
	return id
}

func statusEnable(status uint8) int {
	if status == dao.StatusDisabled {
		return utils.NumberZero
	}
	return utils.NumberOne
}

func typeText(t uint8) string {
	switch t {
	case dao.UserTypeAdmin:
		return "管理员"
	case dao.UserTypeSale:
		return "销售"
	default:
		return utils.StringEmpty
	}
}

func userTypeOptions() []dao.UserTypeOption {
	return []dao.UserTypeOption{
		{ID: dao.UserTypeAdmin, Name: "管理员"},
		{ID: dao.UserTypeSale, Name: "销售"},
	}
}

func resolveStatus(reqStatus uint32, current uint8) uint8 {
	if reqStatus == uint32(dao.StatusEnabled) || reqStatus == uint32(dao.StatusDisabled) {
		return uint8(reqStatus)
	}
	if current > utils.NumberZero {
		return current
	}
	return dao.StatusEnabled
}

func buildAgentsJSON(ids []int64) (string, error) {
	ids = cleanAgentIds(ids)
	if len(ids) == 0 {
		return "", fmt.Errorf("应用不能为空")
	}

	idStrs := make([]string, 0, len(ids))
	for _, id := range ids {
		idStrs = append(idStrs, strconv.FormatInt(id, utils.NumberTen))
	}

	var rows []dao.WecomAgent
	am := model.AgentModel{}.Init()
	if err := am.Items(modelbase.Params{
		In: map[string][]string{"id in ?": idStrs},
	}, &rows); err != nil {
		return "", err
	}

	byID := make(map[int64]dao.WecomAgent, len(rows))
	for _, row := range rows {
		byID[row.Id] = row
	}

	items := make([]dao.UserAgentItem, 0, len(ids))
	for _, id := range ids {
		row, ok := byID[id]
		if !ok {
			return "", fmt.Errorf("应用不存在: %d", id)
		}
		items = append(items, dao.UserAgentItem{
			Id:      row.Id,
			AgentId: row.AgentId,
			Name:    row.Name,
		})
	}

	buf, err := jsoniter.Marshal(items)
	if err != nil {
		return "", err
	}
	return string(buf), nil
}

func parseAgents(raw string) []dao.UserAgentItem {
	if raw == utils.StringEmpty {
		return []dao.UserAgentItem{}
	}
	var items []dao.UserAgentItem
	if err := jsoniter.Unmarshal([]byte(raw), &items); err != nil {
		return []dao.UserAgentItem{}
	}
	if items == nil {
		return []dao.UserAgentItem{}
	}
	return items
}

func cleanAgentIds(ids []int64) []int64 {
	out := make([]int64, 0, len(ids))
	seen := make(map[int64]struct{}, len(ids))
	for _, id := range ids {
		if id < utils.NumberOne {
			continue
		}
		if _, ok := seen[id]; ok {
			continue
		}
		seen[id] = struct{}{}
		out = append(out, id)
	}
	return out
}