package bootstrap

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

	"github.com/gin-gonic/gin"
	"github.com/stretchr/testify/require"

	"github.com/geo-platform/tenant-api/internal/shared/config"
)

func TestNewEngineUsesForwardedClientIPFromTrustedProxy(t *testing.T) {
	t.Parallel()

	gin.SetMode(gin.TestMode)

	engine, err := NewEngine(config.ServerConfig{
		TrustedProxies: []string{"10.42.0.0/16"},
	})
	require.NoError(t, err)

	engine.GET("/ip", func(c *gin.Context) {
		c.String(http.StatusOK, c.ClientIP())
	})

	req := httptest.NewRequest(http.MethodGet, "/ip", nil)
	req.RemoteAddr = "10.42.0.128:51234"
	req.Header.Set("X-Forwarded-For", "106.14.89.27")
	resp := httptest.NewRecorder()

	engine.ServeHTTP(resp, req)

	require.Equal(t, http.StatusOK, resp.Code)
	require.Equal(t, "106.14.89.27", resp.Body.String())
}

func TestNewEngineRejectsInvalidTrustedProxy(t *testing.T) {
	t.Parallel()

	gin.SetMode(gin.TestMode)

	_, err := NewEngine(config.ServerConfig{
		TrustedProxies: []string{"not-a-cidr"},
	})
	require.Error(t, err)
}