Added: fetching polish articles

internal/wikipediadl/downloadarticles.go

@@ -0,0 +1,79 @@
+package wikipediadl
+
+import (
+	"compress/bzip2"
+	"encoding/xml"
+	"flag"
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+)
+
+type Page struct {
+	Title    string   `xml:"title"`
+	Revision Revision `xml:"revision"`
+}
+
+type Revision struct {
+	Text string `xml:"text"`
+}
+
+func DownloadArticles() {
+	url := "https://dumps.wikimedia.org/plwiki/latest/plwiki-latest-pages-articles1.xml-p1p187037.bz2"
+
+	limiter := flag.Int("limit", 10, "Number of articles to process; 0 means all")
+	flag.Parse()
+
+	log.Printf("Downloading chunk: %s", url)
+	resp, err := http.Get(url)
+	if err != nil {
+		log.Fatalf("Failed to download chunk: %v", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		body, _ := io.ReadAll(io.LimitReader(resp.Body, 1024))
+		log.Fatalf("Bad response status: %s\nBody: %s", resp.Status, string(body))
+	}
+
+	bz2Reader := bzip2.NewReader(resp.Body)
+	dec := xml.NewDecoder(bz2Reader)
+
+	count := 0
+	for {
+		tok, err := dec.Token()
+		if err != nil {
+			if err == io.EOF {
+				log.Println("Reached end of chunk")
+				break
+			}
+			log.Fatalf("XML token error: %v", err)
+		}
+
+		switch se := tok.(type) {
+		case xml.StartElement:
+			if se.Name.Local == "page" {
+				var p Page
+				if err := dec.DecodeElement(&p, &se); err != nil {
+					log.Printf("Error decoding page: %v", err)
+					continue
+				}
+
+				count++
+				fmt.Printf("---- Article %d ----\n", count)
+				fmt.Printf("Title: %s\n", p.Title)
+				// fmt.Println("Content:")
+				// fmt.Println(p.Revision.Text)
+				fmt.Println("--------------------\n")
+
+				if *limiter > 0 && count >= *limiter {
+					log.Printf("Reached limit of %d articles, stopping.", *limiter)
+					return
+				}
+			}
+		}
+	}
+
+	log.Printf("Done. Total articles processed: %d", count)
+}