package api

import (
	"net/http"
	"strings"

	"github.com/gin-gonic/gin"

	"ws_usernode/internal/service"
)

// AdminHandler 管理员账号相关接口（M1 完成登录；create/reset 走 CLI）。
type AdminHandler struct {
	svc *service.AdminService
}

// AdminCreateRequest 管理员创建请求。
type AdminCreateRequest struct {
	Username string `json:"username" binding:"required"`
	Password string `json:"password" binding:"required"`
	Email    string `json:"email" binding:"required"`
}

// Create 创建管理员（仅初始引导用，M1 前可经此接口快速建号）。
func (h *AdminHandler) Create(c *gin.Context) {
	if h.svc == nil {
		fail(c, http.StatusNotImplemented, "管理员服务未初始化")
		return
	}
	var req AdminCreateRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		fail(c, http.StatusBadRequest, "请求参数不合法: "+err.Error())
		return
	}
	adm, err := h.svc.Create(c.Request.Context(), req.Username, req.Password, req.Email)
	if err != nil {
		switch {
		case strings.Contains(err.Error(), "已存在"):
			fail(c, http.StatusConflict, err.Error())
		case strings.Contains(err.Error(), "过弱"):
			fail(c, http.StatusBadRequest, err.Error())
		default:
			fail(c, http.StatusInternalServerError, err.Error())
		}
		return
	}
	ok(c, gin.H{"id": adm.ID, "username": adm.Username})
}

// Me 返回当前管理员（M1 接入会话后启用）。
func (h *AdminHandler) Me(c *gin.Context) {
	fail(c, http.StatusNotImplemented, "会话尚未接入（M1）")
}