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

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: ", node);
        }
    }
}

let stages;
const personalDataConfigKeys = ["addr__appellation", "addr__firstName", "addr__surName", "addr__email", "addr__street", "addr__postcode", "addr__placename"];
const bankDetailConfigKeys = ["pymt__iban", "pymt__bic"];


function processMutations(mutationList, observer) {
    for (const mutation of mutationList) {
        if (mutation.type === "childList") {
            mutation.addedNodes.forEach(executeStage);
        }
    }
}
let clickThroughForms;
let hasConfiguredBankDetails, hasConfiguredPersonalData;
let observer = new MutationObserver(processMutations);
const addObserver = () => {
    browser.storage.sync.get(['autocontinue', 'enable'].concat(personalDataConfigKeys, bankDetailConfigKeys)).then(v => {
        clickThroughForms = !!v.autocontinue;
        hasConfiguredPersonalData = Object.keys(v).filter(k => personalDataConfigKeys.includes(k)).length > 0;
        hasConfiguredBankDetails = Object.keys(v).filter(k => bankDetailConfigKeys.includes(k)).length > 0;
        if (!!v.enable) {
            observer.observe(document.body, {
                childList: true, subtree: true
            })
        }
    })
};

addObserver();

function fillTextInput(parentNode, selector, value) {
    const node = parentNode.querySelector(selector);
    node.value = value;
    node.dispatchEvent(new Event("input", { bubbles: true }));
}

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 }));
            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 }))
}

const enterPersonalData = {
    name: "enterPersonalData",
    match: node => node.classList.contains("persoenlicheangaben") && hasConfiguredPersonalData,
    execute: node => {
        browser.storage.sync.get(personalDataConfigKeys).then(foundKeys => {
            console.log("storage returned", foundKeys);
            //TODO the dropdowns are crazy
            // if (foundKeys.keys().contains("addr__appellation")){
            //     let dropDownSelectList = node.querySelector('.test-name-anrede ul.db-web-select-list');

            // }
            const configKey_Selector = {
                "addr__firstName": ".test-name-vorname input",
                "addr__surName": ".test-name-nachname input",
                "addr__email": ".persoenlicheangaben__email input",
                "addr__street": ".test-adresse-strasse input",
                "addr__postcode": ".test-adresse-plz input",
                "addr__placename": ".test-adresse-ort input"
            }

            for (const [k, v] of Object.entries(foundKeys)) {
                if (Object.keys(configKey_Selector).includes(k)) {
                    //TODO WIP this only works on some fields
                    console.log("filling", configKey_Selector, "with", v);
                    fillTextInput(node, configKey_Selector[k], v);
                } else {
                    console.log("no selector found for config key", k);
                }
            }
            const continueBtn = document.querySelector(".fahrgastrechte-editable__buttons button.fahrgastrechte-continue-button");
            if (continueBtn.querySelector("span span.db-web-button__label").textContent == "OK, weiter" && clickThroughForms) {
                continueBtn.dispatchEvent(new Event("click", { bubbles: true }));
            }
            return true;
        })

    },
}

const enterPaymentDetails = {
    name: "enterPaymentDetails",
    match: node => node.classList.contains("entschaedigung") && hasConfiguredBankDetails,
    execute: node => {
        node.querySelector('#ueberweisung').dispatchEvent(new Event('change'));
        browser.storage.sync.get(bankDetailConfigKeys).then(results => {
            console.log(results);
            for (const [k, v] of Object.entries(results)) {
                switch (k) {
                    case "pymt__iban":
                        fillTextInput(node, '.test-entschaedigung-iban input', v);
                        break;
                    case "pymt__bic":
                        fillTextInput(node, '.test-entschaedigung-bic input', v);
                        break;
                }
            }
        })
        true
    },
}

const defaultStages = [
    startClaim, fillData, clickContinue, iWasDelayed, moreThan60Minutes, continueToForm, enterPersonalData, enterPaymentDetails
];
stages = defaultStages;