import db from "../src/inc/sql.mjs";

const runTest = async () => {
    console.log("Verifying Database Schema...");

    // 1. Check Tables
    try {
        await db`SELECT 1 FROM comments LIMIT 1`;
        console.log("✔ Table 'comments' exists.");
    } catch (e) {
        console.error("✘ Table 'comments' missing.");
        process.exit(1);
    }

    try {
        await db`SELECT 1 FROM comment_subscriptions LIMIT 1`;
        console.log("✔ Table 'comment_subscriptions' exists.");
    } catch (e) {
        console.error("✘ Table 'comment_subscriptions' missing.");
        process.exit(1);
    }

    // 2. Insert Test Data
    console.log("Testing Insert...");
    const user = await db`SELECT id FROM "user" LIMIT 1`;
    const item = await db`SELECT id FROM "items" LIMIT 1`;

    if (!user.length || !item.length) {
        console.log("⚠ No user/item to test insert. Skipping.");
    } else {
        const userId = user[0].id;
        const itemId = item[0].id;

        const comment = await db`
            INSERT INTO comments (item_id, user_id, content) 
            VALUES (${itemId}, ${userId}, 'Test Comment DB Verify')
            RETURNING id
        `;
        console.log("✔ Inserted comment ID:", comment[0].id);

        const fetch = await db`SELECT content FROM comments WHERE id = ${comment[0].id}`;
        if (fetch[0].content === 'Test Comment DB Verify') {
            console.log("✔ Verified content.");
        } else {
            console.error("✘ Content mismatch.");
            process.exit(1);
        }

        // Cleanup
        await db`DELETE FROM comments WHERE id = ${comment[0].id}`;
    }

    console.log("DB Schema Verification Passed.");

    // 3. Optional: subscription test
    await db`INSERT INTO comment_subscriptions (user_id, item_id) VALUES (${user[0].id}, ${item[0].id}) ON CONFLICT DO NOTHING`;
    console.log("✔ Subscription table write access confirmed.");

    process.exit(0);
};

runTest().catch(console.error);