import { TextualGameState } from "../core/textual_game_state";
import { SOUNDS } from "../platform/sound";
import { T } from "../translations";
import { KEYMAPPINGS, getStringForKeyCode } from "../game/key_action_mapper";
import { Dialog } from "../core/modal_dialog_elements";
import { IS_DEMO } from "../core/config";

export class KeybindingsState extends TextualGameState {
    constructor() {
        super("KeybindingsState");
    }

    getStateHeaderTitle() {
        return T.keybindings.title;
    }

    getMainContentHTML() {
        return `

            <div class="topEntries">
                <span class="hint">${T.keybindings.hint}</span>
                <button class="styledButton resetBindings">${T.keybindings.resetKeybindings}</button>
            
            </div>

            <div class="keybindings">

            </div>
        `;
    }

    onEnter() {
        const keybindingsElem = this.htmlElement.querySelector(".keybindings");

        this.trackClicks(this.htmlElement.querySelector(".resetBindings"), this.resetBindings);

        for (const category in KEYMAPPINGS) {
            const categoryDiv = document.createElement("div");
            categoryDiv.classList.add("category");
            keybindingsElem.appendChild(categoryDiv);

            const labelDiv = document.createElement("strong");
            labelDiv.innerText = T.keybindings.categoryLabels[category];
            labelDiv.classList.add("categoryLabel");
            categoryDiv.appendChild(labelDiv);

            for (const keybindingId in KEYMAPPINGS[category]) {
                const mapped = KEYMAPPINGS[category][keybindingId];

                const elem = document.createElement("div");
                elem.classList.add("entry");
                elem.setAttribute("data-keybinding", keybindingId);
                categoryDiv.appendChild(elem);

                const title = document.createElement("span");
                title.classList.add("title");
                title.innerText = T.keybindings.mappings[keybindingId];
                elem.appendChild(title);

                const mappingDiv = document.createElement("span");
                mappingDiv.classList.add("mapping");
                elem.appendChild(mappingDiv);

                const editBtn = document.createElement("button");
                editBtn.classList.add("styledButton", "editKeybinding");

                const resetBtn = document.createElement("button");
                resetBtn.classList.add("styledButton", "resetKeybinding");

                if (mapped.builtin) {
                    editBtn.classList.add("disabled");
                    resetBtn.classList.add("disabled");
                } else {
                    this.trackClicks(editBtn, () => this.editKeybinding(keybindingId));
                    this.trackClicks(resetBtn, () => this.resetKeybinding(keybindingId));
                }
                elem.appendChild(editBtn);
                elem.appendChild(resetBtn);
            }
        }
        this.updateKeybindings();
    }

    editKeybinding(id) {
        // if (IS_DEMO) {
        //     this.dialogs.showFeatureRestrictionInfo(T.demo.features.customizeKeybindings);
        //     return;
        // }

        const dialog = new Dialog({
            app: this.app,
            title: T.dialogs.editKeybinding.title,
            contentHTML: T.dialogs.editKeybinding.desc,
            buttons: ["cancel:good"],
            type: "info",
        });

        dialog.inputReciever.keydown.add(({ keyCode, shift, alt, event }) => {
            if (keyCode === 27) {
                this.dialogs.closeDialog(dialog);
                return;
            }

            if (event) {
                event.preventDefault();
            }

            if (
                // Enter
                keyCode === 13 ||
                // TAB
                keyCode === 9
            ) {
                // Ignore builtins
                return;
            }

            this.app.settings.updateKeybindingOverride(id, keyCode);

            this.dialogs.closeDialog(dialog);
            this.updateKeybindings();
        });

        dialog.inputReciever.backButton.add(() => {});

        this.dialogs.internalShowDialog(dialog);
        this.app.sound.playUiSound(SOUNDS.dialogOk);
    }

    updateKeybindings() {
        const overrides = this.app.settings.getKeybindingOverrides();
        for (const category in KEYMAPPINGS) {
            for (const keybindingId in KEYMAPPINGS[category]) {
                const mapped = KEYMAPPINGS[category][keybindingId];

                const container = this.htmlElement.querySelector("[data-keybinding='" + keybindingId + "']");
                assert(container, "Container for keybinding not found: " + keybindingId);

                let keyCode = mapped.keyCode;
                if (overrides[keybindingId]) {
                    keyCode = overrides[keybindingId];
                }

                const mappingDiv = container.querySelector(".mapping");
                mappingDiv.innerHTML = getStringForKeyCode(keyCode);
                mappingDiv.classList.toggle("changed", !!overrides[keybindingId]);

                const resetBtn = container.querySelector("button.resetKeybinding");
                resetBtn.classList.toggle("disabled", mapped.builtin || !overrides[keybindingId]);
            }
        }
    }

    resetKeybinding(id) {
        this.app.settings.resetKeybindingOverride(id);
        this.updateKeybindings();
    }

    resetBindings() {
        const { reset } = this.dialogs.showWarning(
            T.dialogs.resetKeybindingsConfirmation.title,
            T.dialogs.resetKeybindingsConfirmation.desc,
            ["cancel:good", "reset:bad"]
        );

        reset.add(() => {
            this.app.settings.resetKeybindingOverrides();
            this.updateKeybindings();

            this.dialogs.showInfo(T.dialogs.keybindingsResetOk.title, T.dialogs.keybindingsResetOk.desc);
        });
    }

    getDefaultPreviousState() {
        return "SettingsState";
    }
}