package test

import (
	"testing"

	"RenewCMS/internal/domain/article"
	"RenewCMS/internal/infrastructure/useCases"
)

func TestListStoriesPageSuggestionCounts(t *testing.T) {
	cases := []struct {
		name     string
		articles []article.Article
		want     int
	}{
		{"versions of one story count once", []article.Article{
			{ID: 1, StoryID: 10, SiteID: 1, IsOnline: true},
			{ID: 2, StoryID: 10, SiteID: 1, IsOnline: true},
		}, 1},
		{"stories without an id count individually", []article.Article{
			{ID: 1, StoryID: 0, SiteID: 1, IsOnline: true},
			{ID: 2, StoryID: 0, SiteID: 1, IsOnline: true},
			{ID: 3, StoryID: 10, SiteID: 1, IsOnline: true},
		}, 3},
		{"offline versions are not visible to a reader", []article.Article{
			{ID: 1, StoryID: 10, SiteID: 1, IsOnline: false},
		}, 0},
	}
	for _, c := range cases {
		t.Run(c.name, func(t *testing.T) {
			repo := newMockArticleRepo()
			for _, a := range c.articles {
				repo.articles[a.ID] = a
			}
			uc := useCases.NewListArticlesUseCase(repo, &fakeBodyRenderer{}, plainSites(), newFakeLocalizationStore(repo))
			page, err := uc.ListStoriesPage(useCases.ListStoriesCommand{Page: 1, Size: 10})
			if err != nil {
				t.Fatalf("unexpected error: %v", err)
			}
			if page.Counts.Suggestions != c.want {
				t.Fatalf("suggestions = %d, want %d", page.Counts.Suggestions, c.want)
			}
		})
	}
}

func TestListArticlesPageSEOFilterAndSuggestionCount(t *testing.T) {
	repo := newMockArticleRepo()
	for id := uint32(1); id <= 3; id++ {
		repo.articles[id] = article.Article{ID: id, StoryID: id, SiteID: 1, IsOnline: true}
	}
	uc := useCases.NewListArticlesUseCase(repo, &fakeBodyRenderer{}, plainSites(), plainLocalization())
	page, err := uc.ListArticlesPage(useCases.ListArticlesCommand{Page: 2, Size: 2, SEO: article.SEOStatusSuggestions})
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if page.Total != 3 || len(page.Items) != 1 || page.Counts.Suggestions != 3 {
		t.Fatalf("total=%d items=%d suggestions=%d, want 3/1/3", page.Total, len(page.Items), page.Counts.Suggestions)
	}
	beyond, _ := uc.ListArticlesPage(useCases.ListArticlesCommand{Page: 3, Size: 2, SEO: article.SEOStatusSuggestions})
	if len(beyond.Items) != 0 || beyond.Total != 3 {
		t.Fatalf("beyond: items=%d total=%d, want 0/3", len(beyond.Items), beyond.Total)
	}
	none, _ := uc.ListArticlesPage(useCases.ListArticlesCommand{Page: 1, Size: 2, SEO: article.SEOStatusReady})
	if none.Total != 0 || len(none.Items) != 0 {
		t.Fatalf("ready: total=%d items=%d, want 0/0", none.Total, len(none.Items))
	}
}