const database = require("../modules/database")

function create(key, productId, targetChannel) {
    const query = `
        INSERT INTO licenses (
            key,
            productId,
            targetChannel
        )
        VALUES (
            ?,
            ?,
            ?
        )
    `
    const statement = database.prepare(query)
    return statement.run(key, productId, targetChannel)
}

function findByKey(key) {
    const query = `
        SELECT id, key, productId, targetChannel, userId, usedAt
            FROM licenses
            WHERE key = ?
    `
    const statement = database.prepare(query)
    return statement.get(key)
}

function activate(licenseId, userId) {
    const query = `
        UPDATE licenses
            SET userId = ?, usedAt = CURRENT_TIMESTAMP
            WHERE id = ? AND userId IS NULL
    `
    const statement = database.prepare(query)
    return statement.run(userId, licenseId)
}

function deactivate(licenseId, userId) {
    const query = `
        UPDATE licenses
            SET userId = ?, usedAt = NULL
            WHERE id = ? AND userId IS NULL
    `
    const statement = database.prepare(query)
    return statement.run(userId, licenseId)
}

function findByProduct(productId) {
    const query = `
        SELECT * FROM licenses
            WHERE productId = ?
    `
    const statement = database.prepare(query)
    return statement.all(productId)
}

function remove(id) {
    const query = `
        DELETE FROM licenses
            WHERE id = ?
    `
    const statement = database.prepare(query)
    return statement.run(id)
}

module.exports = {
    create,
    remove,
    activate,
    findByKey,
    deactivate,
    findByProduct,
}