import { useContext, useEffect, useMemo, useRef, useState } from "preact/hooks";
import Modal from "../react/Modal";
import "./PopupEditor.css";
import { useNoteContext, useTriliumEvent } from "../react/hooks";
import NoteTitleWidget from "../note_title";
import NoteIcon from "../note_icon";
import NoteContext from "../../components/note_context";
import { NoteContextContext, ParentComponent } from "../react/react_utils";
import NoteDetail from "../NoteDetail";
import { ComponentChildren } from "preact";
import NoteList from "../collections/NoteList";
import StandaloneRibbonAdapter from "../ribbon/components/StandaloneRibbonAdapter";
import FormattingToolbar from "../ribbon/FormattingToolbar";
import PromotedAttributes from "../PromotedAttributes";
import FloatingButtons from "../FloatingButtons";
import { DESKTOP_FLOATING_BUTTONS, MOBILE_FLOATING_BUTTONS, POPUP_HIDDEN_FLOATING_BUTTONS } from "../FloatingButtonsDefinitions";
import utils from "../../services/utils";
import tree from "../../services/tree";
import froca from "../../services/froca";
import ReadOnlyNoteInfoBar from "../ReadOnlyNoteInfoBar";
import MobileEditorToolbar from "../type_widgets/text/mobile_editor_toolbar";

export default function PopupEditor() {
    const [ shown, setShown ] = useState(false);
    const parentComponent = useContext(ParentComponent);
    const [ noteContext, setNoteContext ] = useState(new NoteContext("_popup-editor"));
    const isMobile = utils.isMobile();
    const items = useMemo(() => {
        const baseItems = isMobile ? MOBILE_FLOATING_BUTTONS : DESKTOP_FLOATING_BUTTONS;
        return baseItems.filter(item => !POPUP_HIDDEN_FLOATING_BUTTONS.includes(item));
    }, [ isMobile ]);

    useTriliumEvent("openInPopup", async ({ noteIdOrPath }) => {
        const noteContext = new NoteContext("_popup-editor");

        const noteId = tree.getNoteIdAndParentIdFromUrl(noteIdOrPath);
        if (!noteId.noteId) return;
        const note = await froca.getNote(noteId.noteId);
        if (!note) return;

        const hasUserSetNoteReadOnly = note.hasLabel("readOnly");
        await noteContext.setNote(noteIdOrPath, {
            viewScope: {
                // Override auto-readonly notes to be editable, but respect user's choice to have a read-only note.
                readOnlyTemporarilyDisabled: !hasUserSetNoteReadOnly
            }
        });

        setNoteContext(noteContext);
        setShown(true);
    });

    // Add a global class to be able to handle issues with z-index due to rendering in a popup.
    useEffect(() => {
        document.body.classList.toggle("popup-editor-open", shown);
    }, [shown]);

    return (
        <NoteContextContext.Provider value={noteContext}>
            <DialogWrapper>
                <Modal
                    title={<TitleRow />}
                    className="popup-editor-dialog"
                    size="lg"
                    show={shown}
                    onShown={() => {
                        parentComponent?.handleEvent("focusOnDetail", { ntxId: noteContext.ntxId });
                    }}
                    onHidden={() => setShown(false)}
                    keepInDom // needed for faster loading
                    noFocus // automatic focus breaks block popup
                >
                    <ReadOnlyNoteInfoBar />
                    <PromotedAttributes />

                    {isMobile
                    ? <MobileEditorToolbar inPopupEditor />
                    : <StandaloneRibbonAdapter component={FormattingToolbar} />}

                    <FloatingButtons items={items} />
                    <NoteDetail />
                    <NoteList media="screen" displayOnlyCollections />
                </Modal>
            </DialogWrapper>
        </NoteContextContext.Provider>
    )
}

export function DialogWrapper({ children }: { children: ComponentChildren }) {
    const { note } = useNoteContext();
    const wrapperRef = useRef<HTMLDivElement>(null);
    const [ hasTint, setHasTint ] = useState(false);

    // Apply the tinted-dialog class only if the custom color CSS class specifies a hue
    useEffect(() => {
        if (!wrapperRef.current) return;
        const customHue = getComputedStyle(wrapperRef.current).getPropertyValue("--custom-color-hue");
        setHasTint(!!customHue);
    }, [ note ]);

    return (
        <div ref={wrapperRef} class={`quick-edit-dialog-wrapper ${note?.getColorClass() ?? ""} ${hasTint ? "tinted-quick-edit-dialog" : ""}`}>
            {children}
        </div>
    )
}

export function TitleRow() {
    return (
        <div className="title-row">
            <NoteIcon />
            <NoteTitleWidget />
        </div>
    )
}