// Simulation of song objects
const songs = [
    { name: "Server Song", id: 123, hash: "hash123" },
    { name: "Custom Song (No ID)", id: undefined, hash: "hashCustom" },
    { name: "Custom Song (Null ID)", id: null, hash: "hashNull" },
    { name: "Edge Case (ID 0)", id: 0, hash: "hashZero" } // Checking if behavior is acceptable
];

console.log("=== Frontend Logic Test: Song ID Fallback ===");

songs.forEach(song => {
    // Logic from scoresheet.js / songselect.js
    const songId = song.id || song.hash;

    console.log(`Song: ${song.name}`);
    console.log(`  Raw ID: ${song.id}, Hash: ${song.hash}`);
    console.log(`  Resolved songId: ${songId}`);

    if (song.id && songId === song.id) {
        console.log("  ✅ Correctly used ID");
    } else if (!song.id && songId === song.hash) {
        console.log("  ✅ Correctly fell back to Hash");
    } else if (song.id === 0 && songId === song.hash) {
        console.log("  ⚠️ ID was 0, used Hash. (Acceptable if ID > 0 always)");
    } else {
        console.log("  ❌ FAILED logic mismatch");
    }
    console.log("---");
});

console.log("Tests Completed.");