feat: parse url with js plugins support (#96)

* feat: WIP. add parser functionality and text message handling

* fix: use json to marshal js result

* feat: add metadata handling and version validation for jsParser

* refactor: rename parser package to parsers and restructure parser handling

* refactor: core code struct and impl parse task handle

* feat: impl parsed download

* fix: seek cache file when processing tph picture

* feat: implement parsed task handling and progress tracking

* feat: enhance task processing with concurrency control and progress tracking

* feat: add resource ID generation and improve resource processing handling

* feat: improve message formatting in parsed text and progress completion

* feat: add example js plugin

* feat: implement Twitter parser

* fix: twitter parse video json decode error

* feat: impl stream mode for parse task

parsers/parser.go

@@ -0,0 +1,65 @@
+package parsers
+
+import (
+	"context"
+	"fmt"
+	"sync"
+
+	"github.com/krau/SaveAny-Bot/parsers/twitter"
+	"github.com/krau/SaveAny-Bot/pkg/parser"
+)
+
+var (
+	parsers   []parser.Parser
+	parsersMu sync.Mutex
+)
+
+func GetParsers() []parser.Parser {
+	parsersMu.Lock()
+	defer parsersMu.Unlock()
+	return parsers
+}
+
+func AddParser(p parser.Parser) {
+	parsersMu.Lock()
+	defer parsersMu.Unlock()
+	parsers = append(parsers, p)
+}
+
+func init() {
+	AddParser(new(twitter.TwitterParser))
+}
+
+var (
+	ErrNoParserFound = fmt.Errorf("no parser found for the given URL")
+)
+
+func ParseWithContext(ctx context.Context, url string) (*parser.Item, error) {
+	ch := make(chan *parser.Item, 1)
+	errCh := make(chan error, 1)
+
+	go func() {
+		for _, pser := range parsers {
+			if !pser.CanHandle(url) {
+				continue
+			}
+			item, err := pser.Parse(url)
+			if err != nil {
+				errCh <- err
+				return
+			}
+			ch <- item
+			return
+		}
+		errCh <- ErrNoParserFound
+	}()
+
+	select {
+	case item := <-ch:
+		return item, nil
+	case err := <-errCh:
+		return nil, err
+	case <-ctx.Done():
+		return nil, ctx.Err()
+	}
+}