import { Range, TextDocumentIdentifier } from 'vscode-languageclient';
import { Ctx, Cmd } from '../ctx';
import {
    handle as applySourceChange,
    SourceChange,
} from './apply_source_change';

export function joinLines(ctx: Ctx): Cmd {
    return async () => {
        const editor = ctx.activeRustEditor;
        if (!editor) {
            return;
        }
        const request: JoinLinesParams = {
            range: ctx.client.code2ProtocolConverter.asRange(editor.selection),
            textDocument: { uri: editor.document.uri.toString() },
        };
        const change = await ctx.client.sendRequest<SourceChange>(
            'rust-analyzer/joinLines',
            request,
        );
        await applySourceChange(change);
    }
}

interface JoinLinesParams {
    textDocument: TextDocumentIdentifier;
    range: Range;
}