"use strict";
// Put all the javascript code here, that you want to execute after page load.

let bcFilled = false;
let bdayFilled = false;
let currentStage;

function executeStage(node) {
    if (node.nodeType === 1) {
        if (currentStage === undefined) {
            currentStage = stages.shift();
        }
        if (currentStage.match(node)) {
            console.log(currentStage.name, "matched");
            console.log(currentStage.name, currentStage.execute(node) ? "executed" : "execution failed");
            if (stages.length > 0) {
                currentStage = stages.shift();
            } else {
                observer.disconnect();
            }
        } else {
            console.log(currentStage.name, "did not match");
        }
    }
}


function processMutations(mutationList, observer) {
    for (const mutation of mutationList) {
        if (mutation.type === "childList") {
            mutation.addedNodes.forEach(executeStage);
        }
    }
}
let clickThroughForms;
let observer = new MutationObserver(processMutations);
const addObserver = () => {
    browser.storage.sync.get('autocontinue').then(v => {
        clickThroughForms = !!v.autocontinue;
        observer.observe(document.body, {
            childList: true, subtree: true
        })
    })
};

addObserver();

const startClaim = {
    name: "startClaim",
    match: node => node.classList.contains("antrag-starten"),
    execute: node => {
        const startenButton = node.querySelector('button.test-antrag-starten-button');
        if (startenButton instanceof HTMLButtonElement) {
            startenButton.dispatchEvent(new Event('click', { bubbles: true }));
            return true;
        }
        return false;
    }
}

function fillBcnum(bcNumberInput) {
    browser.storage.sync.get('bcnum').then(v => {
        let bcNum = v.bcnum || null;
        if (bcNum !== null && bcNum !== "") {
            bcNumberInput.value = bcNum;
            bcNumberInput.dispatchEvent(new Event('input', { bubbles: true }));
            return true;
        }
    })
    return false;
}
function fillBday(birthdayInput) {
    browser.storage.sync.get('bday').then(v => {
        const bDay = v.bday || null;
        if (bDay !== null && bDay !== "") {
            birthdayInput.value = bDay;
            birthdayInput.dispatchEvent(new Event('input', { bubbles: true }));
            bdayFilled = true;
            return true;
        }
    })
    return false;
}

const fillData = {
    name: "fillData",
    match: node => node.classList.contains("fahrgastrechte-bahn-card-auswahl"),
    execute: node => {
        let bcNumField, bdayField;
        node.querySelectorAll('input').forEach(e => {
            if (e.name === "fahrgastrechte-bahn-card-nummer") {
                bcNumField = e;
            } else if (e.name === "fahrgastrechte-bahn-card-auswahl-geburts-datum") {
                bdayField = e;
            }
        })
        fillBcnum(bcNumField);
        fillBday(bdayField);
        return true;
    }
}

const clickContinue = {
    name: "clickContinue",
    match: () => true,
    execute: e => {
        const continueButton = document.querySelector('.fahrgastrechte-bahn-card-auswahl button.fahrgastrechte-continue-button');
        if (continueButton instanceof Element) {
            continueButton.dispatchEvent(new Event('click'));
            return true;
        }
        return false;
    }

}

const iWasDelayed = {
    name: "iWasDelayed",
    match: node => node.classList.contains("antrags-typ-auswahl") && clickThroughForms,
    execute: node => {
        const delay = node.querySelector('input#antragstyp-verspaetung');
        if (delay instanceof HTMLInputElement) {
            delay.dispatchEvent(new Event('change'));
            return true;
        }
        return false;
    }
}

const moreThan60Minutes = {
    name: "moreThan60Minutes",
    match: node => node.classList.contains("verspaetungs-auswahl") && clickThroughForms,
    execute: node => node.querySelector('#verspaetungstyp-mehr-als-stunde').dispatchEvent(new Event('change'))
}
const continueToForm = {
    name: "continueToForm",
    match: node => node.classList.contains("verspaetung-bestaetigung") && clickThroughForms,
    execute: node => node.querySelector('button.fahrgastrechte-continue-button').dispatchEvent(new Event('click', { bubbles: true }))
}
let stages = [
    startClaim, fillData, clickContinue, iWasDelayed, moreThan60Minutes, continueToForm
];