package api

import (
	"github.com/gin-gonic/gin"

	"eai_agentplatform/backend/internal/auth"
	"eai_agentplatform/backend/internal/middleware"
	"eai_agentplatform/backend/internal/model"
	"eai_agentplatform/backend/internal/store"
	"eai_agentplatform/backend/internal/web"
)

type loginRequest struct {
	Username string `json:"username"`
	Password string `json:"password"`
}

// Login 登录 → JWT
func Login(c *gin.Context) {
	var req loginRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		web.Fail(c, web.NewBadRequest("请求参数错误"))
		return
	}

	var user model.User
	if err := store.DB.Where("username = ?", req.Username).First(&user).Error; err != nil {
		web.Fail(c, web.NewAuthError("用户名或密码错误"))
		return
	}
	if user.Status != "active" {
		web.Fail(c, web.NewAuthError("账号已禁用"))
		return
	}
	if !auth.VerifyPassword(req.Password, user.PasswordHash) {
		web.Fail(c, web.NewAuthError("用户名或密码错误"))
		return
	}

	token, err := auth.CreateToken(user.Username, user.Role, Cfg.JWTSecret, Cfg.JWTExpireMin)
	if err != nil {
		web.Fail(c, web.NewBadRequest("令牌签发失败"))
		return
	}

	web.OK(c, gin.H{
		"token":      token,
		"expires_in": Cfg.JWTExpireMin * 60,
		"user": gin.H{
			"id":        user.ID,
			"username":  user.Username,
			"full_name": user.FullName,
			"role":      user.Role,
			"ai_points": user.AiPoints,
		},
	})
}

// Me 当前用户信息
func Me(c *gin.Context) {
	u := middleware.CurrentUser(c)
	if u == nil {
		web.Fail(c, web.NewAuthError("未登录"))
		return
	}
	web.OK(c, gin.H{
		"id":              u.ID,
		"username":        u.Username,
		"full_name":       u.FullName,
		"role":            u.Role,
		"status":          u.Status,
		"ai_points":       u.AiPoints,
		"learning_points": u.LearningPoints,
	})
}