65 lines
1.7 KiB
Go
65 lines
1.7 KiB
Go
package rpc
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import (
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"context"
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"github.com/iamxvbaba/td/tg"
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"telesrv/internal/domain"
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)
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type linkedDiscussionChannelProvider interface {
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GetLinkedDiscussionChannel(ctx context.Context, userID, sourceChannelID int64) (domain.ChannelView, error)
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}
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// linkedDiscussionChat projects the linked megagroup through the source
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// broadcast. Generic channel lookup must keep rejecting private non-members;
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// this narrow path is what lets TDesktop resolve ChannelFull.linked_chat_id.
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func (r *Router) linkedDiscussionChat(ctx context.Context, userID, sourceChannelID int64) (tg.ChatClass, bool) {
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provider, ok := r.deps.Channels.(linkedDiscussionChannelProvider)
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if !ok || userID == 0 || sourceChannelID == 0 {
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return nil, false
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}
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view, err := provider.GetLinkedDiscussionChannel(ctx, userID, sourceChannelID)
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if err != nil || view.Channel.ID == 0 {
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return nil, false
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}
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return tgChannelChatForView(userID, view), true
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}
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func (r *Router) appendLinkedDiscussionChat(ctx context.Context, userID, sourceChannelID int64, chats []tg.ChatClass) []tg.ChatClass {
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chat, ok := r.linkedDiscussionChat(ctx, userID, sourceChannelID)
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if !ok {
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return chats
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}
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return replaceTGChat(chats, chat)
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}
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func replaceTGChat(chats []tg.ChatClass, replacement tg.ChatClass) []tg.ChatClass {
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wanted := tgChatID(replacement)
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if wanted == 0 {
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return chats
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}
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out := make([]tg.ChatClass, 0, len(chats)+1)
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for _, chat := range chats {
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if tgChatID(chat) != wanted {
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out = append(out, chat)
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}
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}
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return append(out, replacement)
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}
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func tgChatID(chat tg.ChatClass) int64 {
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switch item := chat.(type) {
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case *tg.Channel:
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return item.ID
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case *tg.ChannelForbidden:
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return item.ID
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case *tg.Chat:
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return item.ID
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case *tg.ChatForbidden:
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return item.ID
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default:
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return 0
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}
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}
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