package handler

import (
	"encoding/json"
	"net/http"
	"sql-platform/internal/middleware"
	"sql-platform/internal/model"

	"github.com/gin-gonic/gin"
)

// GET /api/v1/user/preferences
func GetUserPreferences(c *gin.Context) {
	userID, _, _ := middleware.GetCurrentUser(c)
	var user model.User
	if err := model.DB.First(&user, userID).Error; err != nil {
		c.JSON(http.StatusNotFound, gin.H{"detail": "User not found"})
		return
	}

	prefs := map[string]string{}
	if user.Preferences != nil && *user.Preferences != "" {
		json.Unmarshal([]byte(*user.Preferences), &prefs)
	}
	c.JSON(http.StatusOK, prefs)
}

// PUT /api/v1/user/preferences
func UpdateUserPreferences(c *gin.Context) {
	userID, _, _ := middleware.GetCurrentUser(c)

	var prefs map[string]string
	if err := c.ShouldBindJSON(&prefs); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"detail": err.Error()})
		return
	}

	data, _ := json.Marshal(prefs)
	str := string(data)

	result := model.DB.Model(&model.User{}).Where("id = ?", userID).Update("preferences", str)
	if result.Error != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"detail": result.Error.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{"message": "Preferences updated", "preferences": prefs})
}

// GET /api/v1/public/login-style (no auth required)
func GetPublicLoginStyle(c *gin.Context) {
	// Check system settings first
	var setting model.SystemSetting
	style := "split" // default
	if model.DB.Where("`key` = ?", "login_style").First(&setting).Error == nil {
		if setting.Value != "" {
			style = setting.Value
		}
	}

	// Also return theme default
	theme := "dark"
	if model.DB.Where("`key` = ?", "default_theme").First(&setting).Error == nil {
		if setting.Value != "" {
			theme = setting.Value
		}
	}

	c.JSON(http.StatusOK, gin.H{"login_style": style, "theme": theme})
}