package middleware

import (
	"net/http"
	"net/http/httptest"
	"testing"

	"github.com/gin-gonic/gin"
	"github.com/stretchr/testify/assert"
)

func TestAccountScope_NoUserID(t *testing.T) {
	gin.SetMode(gin.TestMode)
	r := gin.New()
	r.Use(AccountScope())
	r.GET("/test", func(c *gin.Context) {
		c.JSON(200, gin.H{"ok": true})
	})

	w := httptest.NewRecorder()
	req := httptest.NewRequest(http.MethodGet, "/test", nil)
	r.ServeHTTP(w, req)
	assert.Equal(t, 401, w.Code)
}

func TestAccountScope_NoAccountID(t *testing.T) {
	gin.SetMode(gin.TestMode)
	r := gin.New()
	r.Use(func(c *gin.Context) { c.Set("user_id", uint(1)); c.Next() })
	r.Use(AccountScope())
	r.GET("/test", func(c *gin.Context) {
		c.JSON(200, gin.H{"ok": true})
	})

	w := httptest.NewRecorder()
	req := httptest.NewRequest(http.MethodGet, "/test", nil)
	r.ServeHTTP(w, req)
	assert.Equal(t, 400, w.Code)
}

func TestAccountScope_FromHeader(t *testing.T) {
	gin.SetMode(gin.TestMode)
	r := gin.New()
	r.Use(func(c *gin.Context) { c.Set("user_id", uint(1)); c.Next() })
	r.Use(AccountScope())
	r.GET("/test", func(c *gin.Context) {
		accountID, _ := c.Get("account_id")
		c.JSON(200, gin.H{"account_id": accountID})
	})

	w := httptest.NewRecorder()
	req := httptest.NewRequest(http.MethodGet, "/test", nil)
	req.Header.Set("X-Account-ID", "5")
	r.ServeHTTP(w, req)
	assert.Equal(t, 200, w.Code)
}

func TestAccountScope_FromContext(t *testing.T) {
	gin.SetMode(gin.TestMode)
	r := gin.New()
	r.Use(func(c *gin.Context) { c.Set("user_id", uint(1)); c.Set("account_id", uint(2)); c.Next() })
	r.Use(AccountScope())
	r.GET("/test", func(c *gin.Context) {
		accountID, _ := c.Get("account_id")
		c.JSON(200, gin.H{"account_id": accountID})
	})

	w := httptest.NewRecorder()
	req := httptest.NewRequest(http.MethodGet, "/test", nil)
	r.ServeHTTP(w, req)
	assert.Equal(t, 200, w.Code)
}

func TestAccountScope_HeaderOverridesContext(t *testing.T) {
	gin.SetMode(gin.TestMode)
	r := gin.New()
	r.Use(func(c *gin.Context) { c.Set("user_id", uint(1)); c.Set("account_id", uint(2)); c.Next() })
	r.Use(AccountScope())
	r.GET("/test", func(c *gin.Context) {
		accountID, _ := c.Get("account_id")
		c.JSON(200, gin.H{"account_id": accountID})
	})

	w := httptest.NewRecorder()
	req := httptest.NewRequest(http.MethodGet, "/test", nil)
	req.Header.Set("X-Account-ID", "10")
	r.ServeHTTP(w, req)
	assert.Equal(t, 200, w.Code)
}

func TestAccountScope_InvalidHeaderAccountID(t *testing.T) {
	gin.SetMode(gin.TestMode)
	r := gin.New()
	r.Use(func(c *gin.Context) { c.Set("user_id", uint(1)); c.Next() })
	r.Use(AccountScope())
	r.GET("/test", func(c *gin.Context) {
		c.JSON(200, gin.H{"ok": true})
	})

	w := httptest.NewRecorder()
	req := httptest.NewRequest(http.MethodGet, "/test", nil)
	req.Header.Set("X-Account-ID", "abc")
	r.ServeHTTP(w, req)
	assert.Equal(t, 400, w.Code)
}