refactor: refactor task logic for better scalability (#76)

* refactor: a big refactor. wip

* refactor: port handle file

* refactor: place all handlers

* fix: task info nil pointer

* feat: enhance task progress tracking and context management

* feat: cancel task

* feat: stream mode

* feat: silent mode

* feat: dir cmd

* refactor: remove unused old file

* feat: rule cmd

* feat: handle silent mode

* feat: batch task

* fix: batch task progress and temp file cleanup

* refactor: update file creation and cleanup methods for better resource management

* feat: add save command with silent mode handling

* feat: message link

* feat: update message prompts to include file count in storage selection

* feat: slient save links

* refactor: reduce dup code

* feat: rule type

* feat: chose dir

* feat: refactor file handling and storage rules, improve error handling and logging

* feat: rule mode

* feat: telegraph pics

* fix: tphpics nil pointer and inaccurate dirpath

* feat: silent save telegraph

* feat: add suffix to avoid file overwrite

* feat: new storage telegram

* chore: tidy go mod

client/user/userclient.go

@@ -0,0 +1,75 @@
+package user
+
+import (
+	"context"
+	"time"
+
+	"github.com/celestix/gotgproto"
+	"github.com/celestix/gotgproto/ext"
+	"github.com/celestix/gotgproto/sessionMaker"
+	"github.com/charmbracelet/log"
+	"github.com/krau/SaveAny-Bot/client/middleware"
+	"github.com/krau/SaveAny-Bot/config"
+	"github.com/ncruces/go-sqlite3/gormlite"
+)
+
+var UC *gotgproto.Client
+var ectx *ext.Context
+
+func GetCtx() *ext.Context {
+	if ectx != nil {
+		// UC.RefreshContext(ectx)
+		return ectx
+	}
+	ectx = UC.CreateContext()
+	return ectx
+}
+
+func Login(ctx context.Context) (*gotgproto.Client, error) {
+	log.FromContext(ctx).Debug("Logging in as user client")
+	if UC != nil {
+		return UC, nil
+	}
+	res := make(chan struct {
+		client *gotgproto.Client
+		err    error
+	})
+	go func() {
+		tclient, err := gotgproto.NewClient(
+			config.Cfg.Telegram.AppID,
+			config.Cfg.Telegram.AppHash,
+			gotgproto.ClientTypePhone(""),
+			&gotgproto.ClientOpts{
+				Session:          sessionMaker.SqlSession(gormlite.Open(config.Cfg.Telegram.Userbot.Session)),
+				AuthConversator:  &termialAuthConversator{},
+				Context:          ctx,
+				DisableCopyright: true,
+				Middlewares:      middleware.NewDefaultMiddlewares(ctx, 5*time.Minute),
+			},
+		)
+		if err != nil {
+			res <- struct {
+				client *gotgproto.Client
+				err    error
+			}{nil, err}
+		}
+		res <- struct {
+			client *gotgproto.Client
+			err    error
+		}(struct {
+			client *gotgproto.Client
+			err    error
+		}{tclient, nil})
+	}()
+
+	select {
+	case <-ctx.Done():
+		return nil, ctx.Err()
+	case r := <-res:
+		if r.err != nil {
+			return nil, r.err
+		}
+		UC = r.client
+		return UC, nil
+	}
+}