package handler

import (
	"encoding/json"
	"net/http/httptest"
	"testing"
	"time"

	"github.com/gin-gonic/gin"
	"github.com/golang-jwt/jwt/v5"
)

func TestHealth(t *testing.T) {
	r := gin.New()
	r.GET("/health", Health)

	req := httptest.NewRequest("GET", "/health", nil)
	w := httptest.NewRecorder()
	r.ServeHTTP(w, req)
	if w.Code != 200 {
		t.Fatalf("expected 200 got %d", w.Code)
	}
	var body map[string]string
	if err := json.NewDecoder(w.Body).Decode(&body); err != nil {
		t.Fatalf("decode: %v", err)
	}
	if body["status"] != "ok" {
		t.Fatalf("unexpected body: %#v", body)
	}
}

func TestHello(t *testing.T) {
	r := gin.New()
	r.GET("/hello", Hello)

	req := httptest.NewRequest("GET", "/hello", nil)
	w := httptest.NewRecorder()
	r.ServeHTTP(w, req)
	if w.Code != 200 {
		t.Fatalf("expected 200 got %d", w.Code)
	}
	var body map[string]string
	if err := json.NewDecoder(w.Body).Decode(&body); err != nil {
		t.Fatalf("decode: %v", err)
	}
	if body["message"] == "" {
		t.Fatalf("unexpected body: %#v", body)
	}
}

func TestLoginAndProtected(t *testing.T) {
	secret := "testsecret"
	// create token
	token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{
		"sub": "tester",
		"exp": time.Now().Add(time.Hour).Unix(),
	})
	signed, err := token.SignedString([]byte(secret))
	if err != nil {
		t.Fatalf("sign token: %v", err)
	}

	// test protected route
	r := gin.New()
	// use middleware inline for test
	r.Use(func(c *gin.Context) {
		c.Request.Header.Set("Authorization", "Bearer "+signed)
	})
	r.GET("/protected", func(c *gin.Context) {
		c.Set("claims", jwt.MapClaims{"sub": "tester"})
		Protected(c)
	})

	req := httptest.NewRequest("GET", "/protected", nil)
	w := httptest.NewRecorder()
	r.ServeHTTP(w, req)
	if w.Code != 200 {
		t.Fatalf("expected 200 got %d", w.Code)
	}
	var body map[string]interface{}
	if err := json.NewDecoder(w.Body).Decode(&body); err != nil {
		t.Fatalf("decode: %v", err)
	}
	if body["claims"] == nil {
		t.Fatalf("expected claims in response")
	}
}
