pragma Singleton

import Quickshell
// Required: execDetached's context overload takes a processContext value type
// from this module, and without the import the call fails to resolve.
import Quickshell.Io
import qs.config

// Quickshell's DesktopEntry.execute() deliberately ignores both Terminal=true
// and Exec field codes, so entries are launched here instead. Without this,
// entries like `firefox %U` are started with a literal "%U" argument.
Singleton {
    id: root

    function withoutFieldCodes(command: var): var {
        const out = [];

        for (const arg of command) {
            // "%%" is an escaped percent and collapses to one. Every other
            // %<char> is a field code the spec says to substitute with files,
            // URLs or icons — launching from a menu has nothing to substitute,
            // so they are removed.
            const cleaned = arg.replace(/%(.)/g, (match, char) => char === "%" ? "%" : "");

            // An argument that was nothing but a field code is dropped.
            if (cleaned !== "")
                out.push(cleaned);
        }

        return out;
    }

    function launch(entry: var): void {
        const command = root.withoutFieldCodes(entry.command);
        if (command.length === 0)
            return;

        const argv = entry.runInTerminal ? [...Config.terminal, ...command] : command;
        const options = {
            command: argv
        };

        if (entry.workingDirectory)
            options.workingDirectory = entry.workingDirectory;

        Quickshell.execDetached(options);
    }
}