import { DATASETS_ENDPOINT } from "./constants.js";
import Dataset from "./dataset.js";

const mainPage = document.getElementById("details");
const notFoundPage = document.getElementById("not-found");

const title = document.getElementById("title");
const rating = document.getElementById("rating");
const ratingText = document.getElementById("rating-text");
const summary = document.getElementById("summary");
const url = document.getElementById("url");
const date = document.getElementById("date");
const category = document.getElementById("category");
const license = document.getElementById("license");
const termsOfUse = document.getElementById("terms-of-use");
const description = document.getElementById("description");
const backButton = document.getElementById("back-btn");
const deleteButton = document.getElementById("delete-btn");

let dataset = null;
let currentRating = 0;

const currentLocation = new URL(location.href);
if (currentLocation.searchParams.has("id")) {
    const id = currentLocation.searchParams.get("id");
    const response = await fetch(`${DATASETS_ENDPOINT}/id/${id}`);

    if (response.ok) {
        const data = await response.json();
        dataset = new Dataset(data);
        const upvoteComponent = dataset.createUpvoteComponent();

        if (dataset.storageGetKey("created-locally", false)) {
            deleteButton.classList.remove("hidden");
        }

        title.innerText = dataset.title;
        title.dataset.type = dataset.type.toLowerCase();
        rating.value = dataset.rating;
        ratingText.innerText = parseFloat(dataset.rating).toFixed(1);
        summary.innerText = dataset.summary;
        url.href = dataset.url;
        url.innerText = dataset.url;
        mainPage.querySelector(".upvote").replaceWith(upvoteComponent);

        date.datetime = dataset.date;
        date.innerText = dataset.parseDate().toLocaleDateString(undefined, {
            day: "numeric",
            month: "long",
            year: "numeric",
        });
        category.innerText = dataset.category.name;
        category.dataset.id = dataset.category.id;
        license.innerText = dataset.license;
        termsOfUse.href = dataset.termsOfUse;

        description.innerText = dataset.description;

        mainPage.classList.remove("skeleton");
    } else {
        mainPage.classList.add("hidden");
        notFoundPage.classList.remove("hidden");
    }
} else {
    mainPage.classList.add("hidden");
    notFoundPage.classList.remove("hidden");
}

backButton.addEventListener("click", () => {
    window.location.href = location.origin;
})

deleteButton.addEventListener("click", async () => {
    if (dataset != null) {
        const response = await fetch(
            `${DATASETS_ENDPOINT}/id/${dataset.id}`,
            { method: 'DELETE' }
        );

        if (response.ok) {
            window.location.href = location.origin;
        }
    }
});

rating.addEventListener("mousemove", (event) => {
    if (!dataset.storageGetKey("is-rated", false)) {
        let bounds = rating.getBoundingClientRect();
        currentRating = Math.round(((event.clientX - bounds.left) / bounds.width) * 5);
        rating.value = currentRating;
    }

});

rating.addEventListener("mouseleave", () => {
    rating.value = dataset.rating;
});

rating.addEventListener("click", async () => {
    if (!dataset.storageGetKey("is-rated", false)) {
        const starsResponse = await fetch(
            `${DATASETS_ENDPOINT}/id/${dataset.id}/stars?stars=${currentRating}`,
            { method: 'PUT' }
        );

        if (starsResponse.ok) {
            dataset.storageSetKey("is-rated", true);
            const response = await fetch(`${DATASETS_ENDPOINT}/id/${dataset.id}`);
            const data = await response.json();

            dataset = new Dataset(data);
            ratingText.innerText = parseFloat(dataset.rating).toFixed(1);
            rating.value = dataset.rating;
        }
    }
});