document.addEventListener("DOMContentLoaded", () =>
{
    fetch("getOwners.php").then(res => res.json().then(json =>
    {
        if(json.message === "ok")
        {
            let body = "";
            for (const owner of json.owners)
            {
                body += `<option value="${owner.People_ID}">${owner.People_name} - ${owner.People_licence}</option>`;
            }
            body += `<option value="new">New Owner</option>`;
            document.querySelector("#owner").innerHTML = body;
        }
    }));

});

document.querySelector("#owner").addEventListener("change", e =>
{
    let inputs = document.querySelectorAll("#addOwner input");
    if (e.target.value === "new")
    {
        document.querySelector("#addOwner").classList.add("shown");
        for (const input of inputs)
        {
            input.setAttribute("required", "");
        }
    }
    else
    {
        document.querySelector("#addOwner").classList.remove("shown");
        for (const input of inputs)
        {
            input.removeAttribute("required");
        }
    }
});

document.querySelector("#vehicleForm").addEventListener("submit", e =>
{
    e.preventDefault();
    let formData = new FormData();
    formData.append("type", document.querySelector("#type").value);
    formData.append("colour", document.querySelector("#colour").value);
    formData.append("plateNum", document.querySelector("#plateNum").value);
    if (document.querySelector("#owner").value === "new")
    {
        formData.append("name", document.querySelector("#name").value);
        formData.append("address", document.querySelector("#address").value);
        formData.append("licence", document.querySelector("#licence").value);
    }
    else
    {
        formData.append("peopleID", document.querySelector("#owner").value);
    }

    fetch("addVehicle.php", {
        method: "POST",
        body: formData
    }).then(res => res.json().then(json =>
    {
        alert(json.message);
    }));

});