// Copyright (c) 2026 Probo Inc <hello@probo.com>.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

package complianceportal_v1_test

import (
	"net/http"
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
	"go.probo.inc/probo/pkg/server/api/complianceportal"
	complianceportal_v1 "go.probo.inc/probo/pkg/server/api/complianceportal/v1"
)

func requestWithPortalOrigin(t *testing.T, rawURL, origin string) *http.Request {
	t.Helper()

	req, err := http.NewRequest(http.MethodGet, rawURL, nil)
	require.NoError(t, err)

	if origin != "" {
		req = req.WithContext(
			complianceportal.ContextWithCompliancePortalBaseURL(req.Context(), origin),
		)
	}

	return req
}

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

	req := requestWithPortalOrigin(
		t,
		"https://acme.probopage.localhost/fr/documents",
		"https://acme.probopage.localhost",
	)

	lang, canonical, hreflang := complianceportal_v1.SEOFromRequest(req)
	assert.Equal(t, "fr", lang)
	assert.Equal(t, "https://acme.probopage.localhost/fr/documents", canonical)
	require.NotEmpty(t, hreflang)

	var (
		xDefault string
		enHref   string
	)

	for _, link := range hreflang {
		if link.Lang == "x-default" {
			xDefault = link.Href
		}

		if link.Lang == "en" {
			enHref = link.Href
		}
	}

	assert.Equal(t, "https://acme.probopage.localhost/en/documents", enHref)
	assert.Equal(t, enHref, xDefault)
}

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

	req := requestWithPortalOrigin(
		t,
		"https://acme.probopage.localhost/en/docs/foo%20bar",
		"https://acme.probopage.localhost",
	)

	_, canonical, _ := complianceportal_v1.SEOFromRequest(req)
	assert.Equal(t, "https://acme.probopage.localhost/en/docs/foo%20bar", canonical)
}

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

	req := requestWithPortalOrigin(t, "https://trust.acme.com/fr/documents", "")

	lang, canonical, hreflang := complianceportal_v1.SEOFromRequest(req)
	assert.Equal(t, "fr", lang)
	assert.Empty(t, canonical)
	assert.Nil(t, hreflang)
}