package errors_handler

import (
	"encoding/json"
	"net/http"
	"strings"

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

// 404 - Not Found
func GetNotFoundError(c *gin.Context) {
	errorData := gin.H{
		"code": http.StatusNotFound,
		"msg":  c.Request.Method + " > the requested API endpoint was not found",
		"data": gin.H{
			"path":   c.Request.URL.Path,
			"method": c.Request.Method,
			"endpoints": gin.H{
				"health":    "/health",
				"downloads": "/download/versions",
			},
		},
	}

	acceptHeader := c.GetHeader("Accept")
	if strings.Contains(acceptHeader, "text/html") {
		// for browser requests, return HTML
		jsonBytes, err := json.Marshal(errorData)
		if err != nil {
			jsonBytes = []byte(`{"error": "json_serialization_failed"}`)
		}
		jsonStr := string(jsonBytes)
		c.HTML(http.StatusNotFound, "404.html", gin.H{
			"title":    "404 - Not Found",
			"path":     c.Request.URL.Path,
			"method":   c.Request.Method,
			"baseURL":  c.Request.Host,
			"jsonData": jsonStr,
		})
		return
	}
	// for General requests (no text/html in Accept header), return JSON
	c.JSON(http.StatusNotFound, errorData)
}