((dn, schema, inputs, ldifOutput, classContainer, addClassSelect, addClassBtn) => {
    let changes = [],
        multipleValues = {},
        maxInputId = 0,
        newClasses = {},
        attributeCount = {};

    function ComputeChanges() {
        let classChanges = [];
        let actualChanges = [];

        for (let i in newClasses)
            classChanges.push(`add: objectClass\nobjectClass: ${i}`);
        for (let i = 0; i < changes.length; ++i) {
            let ch = changes[i];
            if (!ch)
                continue;
            if (ch.initialValue.length && ch.newValue.length && (multipleValues[ch.attrName] || 0) === 1) {
                actualChanges.push(`replace: ${ch.attrName}\n${ch.attrName}: ${ch.newValue}`);
            } else {
                if (ch.initialValue.length) {
                    if ((multipleValues[ch.attrName] || 0) === 1)
                        actualChanges.push(`delete: ${ch.attrName}`);
                    else
                        actualChanges.push(`delete: ${ch.attrName}\n${ch.attrName}: ${ch.initialValue}`);
                }
                if (ch.newValue.length)
                    actualChanges.push(`add: ${ch.attrName}\n${ch.attrName}: ${ch.newValue}`);
            }
        }
        let totalChanges = classChanges.concat(actualChanges.sort((a, b) => b.localeCompare(a)));
        if (!totalChanges.length)
            return "";
        return `dn: ${dn}\nchangetype: modify\n` + totalChanges.join("\n-\n");
    }
    function UpdateLdif() {
        ldifOutput.textContent = ComputeChanges();
        ldifOutput.style.height = ldifOutput.scrollHeight + "px"
    }

    function onValueChanged(input) {
        let initialValue = input.dataset.initialValue || "",
            inputId = input.dataset.inputId,
            newValue = input.value || "",
            attrName = input.dataset.attributeName;
        if (initialValue === newValue)
            changes[inputId] = undefined;
        else
            changes[inputId] = { initialValue: initialValue, newValue: newValue, attrName: attrName };
        UpdateLdif();
    }

    function getEditLink(className, attrName) {
        for (var i in window.editlinks) {
            if (window.editlinks[i].indexOf(`${className}.${attrName}`) >= 0)
                return i;
        }
        return null;
    }
    function manageEditLink(input) {
        const editLink = getEditLink(input.dataset.klass, input.dataset.attributeName);
        if (!editLink)
            return;
        let linkWrapper = document.createElement("div");
        let link = document.createElement("a");
        input.disabled = true;
        linkWrapper.className = "editlink";
        link.textContent = editLink;
        link.href = editLink;
        link.target = "_blank";
        linkWrapper.appendChild(link);
        input.parentNode.appendChild(linkWrapper);
    }

    let prevItem = null; // input field
    function removeButtonHandler(input, li) {
        return (e) => {
            e?.preventDefault();
            if (multipleValues[input.dataset.attributeName])
                multipleValues[input.dataset.attributeName]--;
            if (!multipleValues[input.dataset.attributeName] && input.dataset.mandatory) {
                // remove last remove button
            }
            input.value = "";
            onValueChanged(input);
            li.bsTooltip.hide();
            li.parentNode.removeChild(li);
        };
    }
    function addAddButton(input, li) {
        let addButton = document.createElement("a");
        addButton.innerText = "";
        addButton.className = "button button-add bi bi-plus-circle";
        addButton.src = "#";
        addButton.parentInput = input;
        addButton.addEventListener("click", (e) => {
            e.preventDefault();
            let line = addButton.parentInput.parentNode.parentNode;
            let copy = line.cloneNode(true);
            line.parentNode.insertBefore(copy, line);
            let input = copy.querySelector("label input");
            input.value = "";
            input.dataset.initialValue = "";
            input.addEventListener("change", e => onValueChanged(e.currentTarget));
            input.dataset.inputId = ++maxInputId;
            multipleValues[input.dataset.attributeName] = (multipleValues[input.dataset.attributeName] || 1) + 1;
            if (!copy.querySelector(".button-remove")) {
                addRemoveButton(line.querySelector("label > input"), line);
                addRemoveButton(input, copy);
            } else {
                copy.querySelector(".button-remove")?.addEventListener("click", removeButtonHandler(input, copy));
            }
            let button = copy.querySelector("label > span > .button-add");
            button.parentNode.removeChild(button);
            setTooltipFromInput(input);
        });
        li.querySelector(".LDAPAttribute > span").appendChild(addButton);
    }
    function addRemoveButton(input, li) {
        if (input.dataset.isMandatory == "true" && (multipleValues[input.dataset.attributeName] || 1) <= 1)
            return;
        let button = document.createElement("a");
        button.innerText = "";
        button.className = "button button-remove bi bi-dash-circle";
        button.src = "#";
        button.addEventListener("click", removeButtonHandler(input, li));
        li.querySelector(".LDAPAttribute > span").appendChild(button);
    }
    function manageDuplicateAttributes(li, input) {
        attributeCount[input.dataset.attributeName] = (attributeCount[input.dataset.attributeName] || {});
        attributeCount[input.dataset.attributeName][input.dataset.klass] = true;
        if (Object.keys(attributeCount[input.dataset.attributeName]).length > 1)
            li.style.display = "none";
    }
    function setTooltip(li, description) {
        if (!description)
            return;
        li.dataset.bsTitle = description;
        li.dataset.bsToggle = "tooltip";
        li.bsTooltip = new bootstrap.Tooltip(li, { trigger: "hover" });
    }
    function setTooltipFromInput(input) {
        setTooltip(input.parentNode.parentNode, schema[input.dataset.klass]?.descriptions?.[input.dataset.attributeName]);
    }
    inputs.forEach(i => {
        maxInputId = Math.max(i.dataset.inputId, maxInputId);
        i.dataset.isMandatory = i.parentNode.children[0].classList.contains("mandatory");
        let attrName = i.dataset.attributeName;
        if ((i.dataset.initialValue || "").length)
            multipleValues[attrName] = (multipleValues[attrName] || 0) + 1;
        i.addEventListener("change", e => onValueChanged(e.currentTarget))
        if (prevItem != null &&
            prevItem.dataset.attributeName !== i.dataset.attributeName) {
            addAddButton(prevItem, prevItem.parentNode.parentNode);
        }
        prevItem = i;
        manageDuplicateAttributes(i.parentElement.parentElement.parentElement, i);
        setTooltipFromInput(i);
        manageEditLink(i);
    });
    inputs.forEach(i => {
        addRemoveButton(i, i.parentNode.parentNode);
    });
    prevItem && addAddButton(prevItem, prevItem.parentNode.parentNode);

    function CreateClassAttributeDom(className, name, init, isMandatory) {
        let li = document.createElement("li");
        let label = document.createElement("label");
        label.classList.add("LDAPAttribute");
        label.classList.add("form-label");
        li.appendChild(label);
        let span = document.createElement("span");
        if (isMandatory)
            span.classList.add("mandatory");
        span.innerText = name;
        let inputWrapper = document.createElement("span");
        let input = document.createElement("input");
        inputWrapper.className = "form-input-wrapper";
        input.type = "text";
        input.value = init;
        input.dataset.initialValue = init;
        input.dataset.inputId = ++maxInputId;
        input.dataset.name = name;
        input.dataset.klass = className;
        input.dataset.attributeName = name;
        input.required = isMandatory;
        input.className = "form-control";
        input.addEventListener("change", e => onValueChanged(e.currentTarget))
        label.appendChild(span);
        label.appendChild(inputWrapper);
        inputWrapper.appendChild(input);
        addAddButton(input, li);
        if (!isMandatory)
            addRemoveButton(input, li);
        manageDuplicateAttributes(li, input);
        manageEditLink(input);
        setTooltipFromInput(input);
        return li;
    }

    function CreateClassDom(schema, className) {
        let classDom = document.createElement("fieldset");
        classDom.classList.add("LDAPClass");
        let legend = document.createElement("legend");
        let legendInner = document.createElement("h3");
        legendInner.innerText = className +' (' +schema["type"] +')';
        legend.appendChild(legendInner);
        classDom.appendChild(legend);
        let list = document.createElement("ul");
        for (let i of schema["must"])
            list.appendChild(CreateClassAttributeDom(className, i, "", true));
        for (let i of schema["may"])
            list.appendChild(CreateClassAttributeDom(className, i, "", false));
        classDom.appendChild(list);
        return classDom;
    }

    addClassBtn.addEventListener("click", () => {
        let targetClass = addClassSelect.value;
        if (!schema[targetClass])
            return;
        for (let i of addClassSelect.children) {
            if (i.value === targetClass) {
                addClassSelect.removeChild(i);
                break;
            }
        }
        newClasses[targetClass] = true;
        let dom = CreateClassDom(schema[targetClass], targetClass);
        classContainer.appendChild(dom);
        UpdateLdif();
    });
})(
    window['dn'], window['schema'],
    document.querySelectorAll(".LDAPAttribute input"), document.getElementById("ldifOutput"),
    document.getElementById("classContainer"),
    document.getElementById("addClassSelect"), document.getElementById("addClassBtn"));