init

piqoni · Jun 2, 2024 · cde3598 · cde3598
commit cde3598
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diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,3 @@
+.vscode/
+.DS_STORE
+hn-text
diff --git a/go.mod b/go.mod
@@ -0,0 +1,27 @@
+module hn-text
+
+go 1.21.1
+
+require (
+	github.com/PuerkitoBio/goquery v1.9.2
+	github.com/gdamore/tcell/v2 v2.7.4
+	github.com/gelembjuk/articletext v0.0.0-20231013143648-bc7a97ba132a
+	github.com/k3a/html2text v1.2.1
+	github.com/rivo/tview v0.0.0-20240524063012-037df494fb76
+)
+
+require (
+	github.com/andybalholm/cascadia v1.3.2 // indirect
+	github.com/gdamore/encoding v1.0.0 // indirect
+	github.com/jaytaylor/html2text v0.0.0-20230321000545-74c2419ad056 // indirect
+	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
+	github.com/mattn/go-runewidth v0.0.15 // indirect
+	github.com/olekukonko/tablewriter v0.0.5 // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
+	github.com/ssor/bom v0.0.0-20170718123548-6386211fdfcf // indirect
+	golang.org/x/net v0.24.0 // indirect
+	golang.org/x/sys v0.19.0 // indirect
+	golang.org/x/term v0.19.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	gopkg.in/neurosnap/sentences.v1 v1.0.7 // indirect
+)
diff --git a/go.sum b/go.sum
@@ -0,0 +1,87 @@
+github.com/PuerkitoBio/goquery v1.9.2 h1:4/wZksC3KgkQw7SQgkKotmKljk0M6V8TUvA8Wb4yPeE=
+github.com/PuerkitoBio/goquery v1.9.2/go.mod h1:GHPCaP0ODyyxqcNoFGYlAprUFH81NuRPd0GX3Zu2Mvk=
+github.com/andybalholm/cascadia v1.3.2 h1:3Xi6Dw5lHF15JtdcmAHD3i1+T8plmv7BQ/nsViSLyss=
+github.com/andybalholm/cascadia v1.3.2/go.mod h1:7gtRlve5FxPPgIgX36uWBX58OdBsSS6lUvCFb+h7KvU=
+github.com/gdamore/encoding v1.0.0 h1:+7OoQ1Bc6eTm5niUzBa0Ctsh6JbMW6Ra+YNuAtDBdko=
+github.com/gdamore/encoding v1.0.0/go.mod h1:alR0ol34c49FCSBLjhosxzcPHQbf2trDkoo5dl+VrEg=
+github.com/gdamore/tcell/v2 v2.7.4 h1:sg6/UnTM9jGpZU+oFYAsDahfchWAFW8Xx2yFinNSAYU=
+github.com/gdamore/tcell/v2 v2.7.4/go.mod h1:dSXtXTSK0VsW1biw65DZLZ2NKr7j0qP/0J7ONmsraWg=
+github.com/gelembjuk/articletext v0.0.0-20231013143648-bc7a97ba132a h1:qiro+IlH6Wj1YAEnLGYYGNuqEEQUyrDDWThnHL5Xgzo=
+github.com/gelembjuk/articletext v0.0.0-20231013143648-bc7a97ba132a/go.mod h1:MEAzbitBZyN3cjFntWZJnfeForJTU+VNDLR69SdHesA=
+github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 h1:EGx4pi6eqNxGaHF6qqu48+N2wcFQ5qg5FXgOdqsJ5d8=
+github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
+github.com/jaytaylor/html2text v0.0.0-20230321000545-74c2419ad056 h1:iCHtR9CQyktQ5+f3dMVZfwD2KWJUgm7M0gdL9NGr8KA=
+github.com/jaytaylor/html2text v0.0.0-20230321000545-74c2419ad056/go.mod h1:CVKlgaMiht+LXvHG173ujK6JUhZXKb2u/BQtjPDIvyk=
+github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7C0MuV77Wo=
+github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
+github.com/k3a/html2text v1.2.1 h1:nvnKgBvBR/myqrwfLuiqecUtaK1lB9hGziIJKatNFVY=
+github.com/k3a/html2text v1.2.1/go.mod h1:ieEXykM67iT8lTvEWBh6fhpH4B23kB9OMKPdIBmgUqA=
+github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
+github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
+github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
+github.com/mattn/go-runewidth v0.0.15 h1:UNAjwbU9l54TA3KzvqLGxwWjHmMgBUVhBiTjelZgg3U=
+github.com/mattn/go-runewidth v0.0.15/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/neurosnap/sentences v1.1.2 h1:iphYOzx/XckXeBiLIUBkPu2EKMJ+6jDbz/sLJZ7ZoUw=
+github.com/neurosnap/sentences v1.1.2/go.mod h1:/pwU4E9XNL21ygMIkOIllv/SMy2ujHwpf8GQPu1YPbQ=
+github.com/olekukonko/tablewriter v0.0.5 h1:P2Ga83D34wi1o9J6Wh1mRuqd4mF/x/lgBS7N7AbDhec=
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+github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d h1:zE9ykElWQ6/NYmHa3jpm/yHnI4xSofP+UP6SpjHcSeM=
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+github.com/smartystreets/goconvey v1.6.4 h1:fv0U8FUIMPNf1L9lnHLvLhgicrIVChEkdzIKYqbNC9s=
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+github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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+golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
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+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+gopkg.in/neurosnap/sentences.v1 v1.0.7 h1:gpTUYnqthem4+o8kyTLiYIB05W+IvdQFYR29erfe8uU=
+gopkg.in/neurosnap/sentences.v1 v1.0.7/go.mod h1:YlK+SN+fLQZj+kY3r8DkGDhDr91+S3JmTb5LSxFRQo0=
diff --git a/main.go b/main.go
@@ -0,0 +1,38 @@
+package main
+
+import (
+	"log"
+	"os"
+
+	"github.com/rivo/tview"
+)
+
+var hackerNewsURL = "https://news.ycombinator.com/"
+
+func main() {
+	app := tview.NewApplication()
+	// TODO: rewrite this for other options
+	if len(os.Args) > 1 && os.Args[1] == "best" {
+		hackerNewsURL = "https://news.ycombinator.com/best"
+	}
+
+	htmlContent, err := fetchWebpage(hackerNewsURL)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	articles, err := parseArticles(htmlContent)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	list := createArticleList(articles)
+	pages := tview.NewPages()
+	pages.AddPage("homepage", list, true, false)
+
+	app.SetInputCapture(createInputHandler(app, list, articles, pages))
+
+	if err := app.SetRoot(list, true).Run(); err != nil {
+		log.Fatal(err)
+	}
+}
diff --git a/parser.go b/parser.go
@@ -0,0 +1,73 @@
+package main
+
+import (
+	"fmt"
+	"regexp"
+	"strconv"
+	"strings"
+
+	"github.com/PuerkitoBio/goquery"
+)
+
+type Article struct {
+	Title        string
+	Link         string
+	Comments     int
+	CommentsLink string
+}
+
+func parseArticles(htmlContent string) ([]Article, error) {
+	var articles []Article
+
+	doc, err := goquery.NewDocumentFromReader(strings.NewReader(htmlContent))
+	if err != nil {
+		return nil, err
+	}
+
+	doc.Find("tr.athing").Each(func(i int, s *goquery.Selection) {
+		title := s.Find("td.title > span.titleline > a").Text()
+		link, _ := s.Find("td.title > span.titleline > a").Attr("href")
+		commentText := s.Next().Find("a[href^='item']").Last().Text()
+		commentsCount, err := extractNumberFromString(commentText)
+		commentsLink := s.Next().Find("a[href^='item']").Last().AttrOr("href", "")
+		if err != nil {
+			commentsCount = 0
+		}
+
+		article := Article{
+			Title:        title,
+			Link:         link,
+			Comments:     commentsCount,
+			CommentsLink: commentsLink,
+		}
+
+		articles = append(articles, article)
+	})
+
+	return articles, nil
+}
+
+func extractCommentsCount(s *goquery.Selection) (int, error) {
+	// find the second a[href^='item'] element
+
+	commentText := s.Next().Find("a[href^='item']").Last().Text()
+
+	return extractNumberFromString(commentText)
+}
+
+func extractNumberFromString(input string) (int, error) {
+
+	input = strings.TrimSpace(input)
+	re := regexp.MustCompile(`\d+`)
+	matches := re.FindString(input)
+	if matches == "" {
+		return 0, fmt.Errorf("no numbers found in input")
+	}
+
+	number, err := strconv.Atoi(matches)
+	if err != nil {
+		return 0, err
+	}
+
+	return number, nil
+}
diff --git a/parser_test.go b/parser_test.go
@@ -0,0 +1,147 @@
+package main
+
+import (
+	"testing"
+)
+
+func TestParseArticles(t *testing.T) {
+	htmlContent := `
+<table>
+    <tr class="athing">
+        <td align="right" valign="top" class="title"><span class="rank">1.</span></td>
+        <td valign="top" class="votelinks">
+            <center><a id='up_40477653' href='vote?id=40477653&amp;how=up&amp;goto=news'>
+                    <div class='votearrow' title='upvote'></div>
+                </a></center>
+        </td>
+        <td class="title"><span class="titleline"><a
+                    href="https://newscenter.lbl.gov/2012/05/16/majorana-demonstrator/">Majorana, the search for the most elusive neutrino of all</a><span class="sitebit comhead"> (<a href="from?site=lbl.gov"><span
+                            class="sitestr">lbl.gov</span></a>)</span></span></td>
+    </tr>
+    <tr>
+        <td colspan="2"></td>
+        <td class="subtext"><span class="subline">
+                <span class="score" id="score_40477653">23 points</span> by <a href="user?id=bilsbie"
+                    class="hnuser">bilsbie</a> <span class="age" title="2024-05-25T20:35:59"><a
+                        href="item?id=40477653">2 hours ago</a></span> <span id="unv_40477653"></span> | <a
+                    href="hide?id=40477653&amp;goto=news">hide</a> | <a href="item?id=40477653">1&nbsp;comment</a>
+            </span>
+        </td>
+    </tr>
+    <tr class="athing">
+        <td align="right" valign="top" class="title"><span class="rank">2.</span></td>
+        <td valign="top" class="votelinks">
+            <center><a id='up_40474712' href='vote?id=40474712&amp;how=up&amp;goto=news'>
+                    <div class='votearrow' title='upvote'></div>
+                </a></center>
+        </td>
+        <td class="title"><span class="titleline"><a
+                    href="https://reverse.put.as/2024/05/24/abusing-go-infrastructure/">Abusing Go&#x27;s Infrastructure</a><span class="sitebit comhead"> (<a href="from?site=put.as"><span
+                            class="sitestr">put.as</span></a>)</span></span></td>
+    </tr>
+    <tr>
+        <td colspan="2"></td>
+        <td class="subtext"><span class="subline">
+                <span class="score" id="score_40474712">298 points</span> by <a href="user?id=efge"
+                    class="hnuser">efge</a> <span class="age" title="2024-05-25T12:50:00"><a href="item?id=40474712">10
+                        hours ago</a></span> <span id="unv_40474712"></span> | <a
+                    href="hide?id=40474712&amp;goto=news">hide</a> | <a href="item?id=40474712">62&nbsp;comments</a>
+            </span>
+        </td>
+    </tr>
+</table>`
+
+	expectedArticles := []Article{
+		{Title: "Majorana, the search for the most elusive neutrino of all", Link: "https://newscenter.lbl.gov/2012/05/16/majorana-demonstrator/", Comments: 1, CommentsLink: "item?id=40477653"},
+		{Title: "Abusing Go's Infrastructure", Link: "https://reverse.put.as/2024/05/24/abusing-go-infrastructure/", Comments: 62, CommentsLink: "item?id=40474712"},
+	}
+
+	articles, err := parseArticles(htmlContent)
+	if err != nil {
+		t.Fatalf("Unexpected error: %v", err)
+	}
+
+	if len(articles) != len(expectedArticles) {
+		t.Fatalf("Expected %d articles, got %d", len(expectedArticles), len(articles))
+	}
+
+	for i, article := range articles {
+		if article.Title != expectedArticles[i].Title {
+			t.Errorf("Expected title %q, got %q", expectedArticles[i].Title, article.Title)
+		}
+		if article.Link != expectedArticles[i].Link {
+			t.Errorf("Expected link %q, got %q", expectedArticles[i].Link, article.Link)
+		}
+		if article.Comments != expectedArticles[i].Comments {
+			t.Errorf("Expected comments %d, got %d", expectedArticles[i].Comments, article.Comments)
+		}
+		if article.CommentsLink != expectedArticles[i].CommentsLink {
+			t.Errorf("Expected comments link %q, got %q", expectedArticles[i].CommentsLink, article.CommentsLink)
+		}
+	}
+}
+
+// func TestParseArticles(t *testing.T) {
+// 	t.Run("Empty HTML", func(t *testing.T) {
+// 		articles, err := parseArticles("")
+// 		assert.NoError(t, err)
+// 		assert.Empty(t, articles)
+// 	})
+
+// 	t.Run("Valid HTML", func(t *testing.T) {
+// 		html := `
+// 			<tr class="athing">
+// 				<td class="title">
+// 					<span class="titleline">
+// 						<a href="https://example.com">Article 1</a>
+// 					</span>
+// 				</td>
+// 			</tr>
+// 			<tr class="athing">
+// 				<td class="title">
+// 					<span class="titleline">
+// 						<a href="https://example.com/2">Article 2</a>
+// 					</span>
+// 				</td>
+// 			</tr>
+// 		`
+// 		articles, err := parseArticles(html)
+// 		assert.NoError(t, err)
+// 		assert.Len(t, articles, 2)
+// 		assert.Equal(t, "Article 1", articles[0].Title)
+// 		assert.Equal(t, "https://example.com", articles[0].Link)
+// 		assert.Equal(t, "Article 2", articles[1].Title)
+// 		assert.Equal(t, "https://example.com/2", articles[1].Link)
+// 	})
+
+// 	t.Run("Error in goquery", func(t *testing.T) {
+// 		doc := &goquery.Document{}
+// 		// doc.SetError(fmt.Errorf("test error"))
+// 		articles, err := parseArticlesFromDocument(doc)
+// 		assert.Error(t, err)
+// 		assert.Nil(t, articles)
+// 	})
+// }
+
+// func parseArticlesFromDocument(doc *goquery.Document) ([]Article, error) {
+// 	var articles []Article
+
+// 	doc.Find("tr.athing").Each(func(i int, s *goquery.Selection) {
+// 		title := s.Find("td.title > span.titleline > a").Text()
+// 		link, _ := s.Find("td.title > span.titleline > a").Attr("href")
+// 		commentsCount, err := extractCommentsCount(s)
+// 		if err != nil {
+// 			commentsCount = 0
+// 		}
+
+// 		article := Article{
+// 			Title:    title,
+// 			Link:     link,
+// 			Comments: commentsCount,
+// 		}
+
+// 		articles = append(articles, article)
+// 	})
+
+// 	return articles, nil
+// }