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import type { Tab, TabsState } from "./tabs";
import {
initialState,
closeTab as reduceCloseTab,
createTab as reduceCreateTab,
newDraft as reduceNewDraft,
openTab as reduceOpenTab,
selectTab as reduceSelectTab,
setModel as reduceSetModel,
setTitle as reduceSetTitle,
activeTab as selectActiveTab,
} from "./tabs";
export interface TabsStorage {
load(): TabsState | null;
save(state: TabsState): void;
}
export interface TabsStore {
readonly tabs: readonly Tab[];
readonly activeConversationId: string | null;
readonly activeTab: Tab | null;
newDraft(): void;
createTab(tab: Tab): void;
/** Add a tab WITHOUT focusing it (for `conversation.open`). No-op if already open. */
openTab(tab: Tab): void;
selectTab(conversationId: string): void;
closeTab(conversationId: string): void;
setModel(conversationId: string, model: string): void;
setTitle(conversationId: string, title: string): void;
}
export function createTabsStore(storage: TabsStorage): TabsStore {
let state = $state<TabsState>(storage.load() ?? initialState());
function apply(next: TabsState): void {
state = next;
storage.save(next);
}
return {
get tabs(): readonly Tab[] {
return state.tabs;
},
get activeConversationId(): string | null {
return state.activeConversationId;
},
get activeTab(): Tab | null {
return selectActiveTab(state);
},
newDraft(): void {
apply(reduceNewDraft(state));
},
createTab(tab: Tab): void {
apply(reduceCreateTab(state, tab));
},
openTab(tab: Tab): void {
apply(reduceOpenTab(state, tab));
},
selectTab(conversationId: string): void {
apply(reduceSelectTab(state, conversationId));
},
closeTab(conversationId: string): void {
apply(reduceCloseTab(state, conversationId));
},
setModel(conversationId: string, model: string): void {
apply(reduceSetModel(state, conversationId, model));
},
setTitle(conversationId: string, title: string): void {
apply(reduceSetTitle(state, conversationId, title));
},
};
}
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