package uber

import (
	"bytes"
	"context"
	"io"
	"net/http"
	"strings"
	"testing"

	"github.com/hireme/hireme/internal/crawler/crawlertest"
)

type roundTripFunc func(req *http.Request) *http.Response

func (f roundTripFunc) RoundTrip(req *http.Request) (*http.Response, error) {
	return f(req), nil
}

func TestUberCrawler_DiscoverAndFetch(t *testing.T) {
	mockClient := &http.Client{
		Transport: roundTripFunc(func(r *http.Request) *http.Response {
			if strings.Contains(r.URL.Path, "loadSearchJobsResults") {
				body := `{
					"status": "success",
					"data": {
						"totalResults": 1,
						"results": [
							{
								"id": 139820,
								"title": "Software Engineer II - Core Compute & Storage",
								"location": "Seattle, WA",
								"city": "Seattle",
								"countryName": "USA"
							}
						]
					}
				}`
				return &http.Response{
					StatusCode: http.StatusOK,
					Body:       io.NopCloser(bytes.NewBufferString(body)),
					Header:     make(http.Header),
				}
			}

			if strings.Contains(r.URL.Path, "loadJobDetails") {
				body := `{
					"data": {
						"id": 139820,
						"title": "Software Engineer II - Core Compute & Storage",
						"description": "<p>Uber Infra powers global dispatch and real-time computation.</p>",
						"whatYouWillDo": "<li>Architect scalable storage solutions using Go and Java.</li>",
						"basicQualifications": "<li>2+ years of backend software development experience.</li>",
						"location": "Seattle, WA"
					}
				}`
				return &http.Response{
					StatusCode: http.StatusOK,
					Body:       io.NopCloser(bytes.NewBufferString(body)),
					Header:     make(http.Header),
				}
			}

			return &http.Response{
				StatusCode: http.StatusNotFound,
				Body:       io.NopCloser(bytes.NewBufferString("not found")),
				Header:     make(http.Header),
			}
		}),
	}

	c := NewUberCrawlerWithClient(mockClient)
	if !c.CanHandle("uber") {
		t.Errorf("CanHandle should support uber")
	}

	discovered, err := c.DiscoverJobs(context.Background(), "https://www.uber.com/global/en/careers/search/?query=Software+Engineer")
	if err != nil {
		t.Fatalf("DiscoverJobs failed: %v", err)
	}

	if len(discovered) != 1 {
		t.Fatalf("expected 1 discovered job, got %d", len(discovered))
	}

	if discovered[0].CanonicalID != "uber:139820" {
		t.Errorf("unexpected canonical ID: %s", discovered[0].CanonicalID)
	}

	extracted, err := c.FetchJobDetail(context.Background(), "https://www.uber.com/global/en/careers/list/139820/")
	if err != nil {
		t.Fatalf("FetchJobDetail failed: %v", err)
	}

	if extracted.Title != "Software Engineer II - Core Compute & Storage" {
		t.Errorf("unexpected title: %s", extracted.Title)
	}
	if extracted.Company != "Uber" {
		t.Errorf("unexpected company: %s", extracted.Company)
	}
	if extracted.Location != "Seattle, WA" {
		t.Errorf("unexpected location: %s", extracted.Location)
	}
}

func TestUberCrawler_LiveIntegration(t *testing.T) {
	crawlertest.RunLiveIntegration(t, crawlertest.LiveTestConfig{
		PlatformName:            "Uber",
		Crawler:                 NewUberCrawler(),
		TargetURL:               "https://www.uber.com/global/en/careers/search/?query=Software+Engineer",
		ExpectedCanonicalPrefix: "uber:",
		ExpectedCompany:         "Uber",
	})
}