package system

import (
	"time"

	"git.echol.cn/loser/Go-Web-Template/server/model/common/response"
	"git.echol.cn/loser/Go-Web-Template/server/utils"
	"github.com/gin-gonic/gin"
)

type InviteCodeApi struct{}

type inviteCodeCurrentResponse struct {
	HasUnused bool        `json:"hasUnused"`
	Record    interface{} `json:"record,omitempty"`
}

// GenerateInviteCode
// @Tags     InviteCode
// @Summary  生成邀请码（同一时间仅允许一个未使用码）
// @Security ApiKeyAuth
// @Produce  application/json
// @Success  200  {object}  response.Response{data=system.InviteCodeGenerated,msg=string}  "生成成功"
// @Router   /user/invite-code/generate [post]
func (a *InviteCodeApi) GenerateInviteCode(c *gin.Context) {
	uid := utils.GetUserID(c)
	expireHours := inviteCodeService.InviteExpireHours()
	res, err := inviteCodeService.Generate(uid, expireHours)
	if err != nil {
		response.FailWithMessage(err.Error(), c)
		return
	}
	response.OkWithData(res, c)
}

// CurrentInviteCode
// @Tags     InviteCode
// @Summary  获取当前未使用邀请码（不返回明文）
// @Security ApiKeyAuth
// @Produce  application/json
// @Success  200  {object}  response.Response{data=inviteCodeCurrentResponse,msg=string}  "获取成功"
// @Router   /user/invite-code/current [get]
func (a *InviteCodeApi) CurrentInviteCode(c *gin.Context) {
	uid := utils.GetUserID(c)
	rec, err := inviteCodeService.GetCurrentUnused(uid)
	if err != nil {
		response.FailWithMessage(err.Error(), c)
		return
	}
	if rec == nil {
		response.OkWithData(inviteCodeCurrentResponse{HasUnused: false}, c)
		return
	}
	// 仅返回必要字段（不返回 hash）
	payload := map[string]interface{}{
		"id":        rec.ID,
		"codeLast4": rec.CodeLast4,
		"status":    rec.Status,
		"expiresAt": rec.ExpiresAt,
		"createdAt": rec.CreatedAt.Format(time.RFC3339),
	}
	response.OkWithData(inviteCodeCurrentResponse{HasUnused: true, Record: payload}, c)
}