import { useParams, useHistory } from "react-router-dom";
import { Channels } from "revolt.js/dist/api/objects";
import styled from "styled-components";

import { useState } from "preact/hooks";

import { isTouchscreenDevice } from "../../lib/isTouchscreenDevice";

import { useChannel, useForceUpdate } from "../../context/revoltjs/hooks";

import MessageBox from "../../components/common/messaging/MessageBox";
import JumpToBottom from "../../components/common/messaging/bars/JumpToBottom";
import TypingIndicator from "../../components/common/messaging/bars/TypingIndicator";
import Button from "../../components/ui/Button";
import Checkbox from "../../components/ui/Checkbox";

import MemberSidebar from "../../components/navigation/right/MemberSidebar";
import ChannelHeader from "./ChannelHeader";
import { MessageArea } from "./messaging/MessageArea";
import VoiceHeader from "./voice/VoiceHeader";
import { dispatch, getState } from "../../redux";

const ChannelMain = styled.div`
    flex-grow: 1;
    display: flex;
    min-height: 0;
    overflow: hidden;
    flex-direction: row;
`;

const ChannelContent = styled.div`
    flex-grow: 1;
    display: flex;
    overflow: hidden;
    flex-direction: column;
`;

const AgeGate = styled.div`
    display: flex;
    flex-grow: 1;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    user-select: none;
    padding: 12px;

    img {
        height: 150px;
    }

    .subtext {
        color: var(--secondary-foreground);
        margin-bottom: 12px;
        font-size: 14px;
    }

    .actions {
        margin-top: 20px;
        display: flex;
        gap: 12px;
    }
`;

export function Channel({ id }: { id: string }) {
    const ctx = useForceUpdate();
    const channel = useChannel(id, ctx);

    if (!channel) return null;

    if (channel.channel_type === "VoiceChannel") {
        return <VoiceChannel channel={channel} />;
    } else {
        return <TextChannel channel={channel} />;
    }
}

const MEMBERS_SIDEBAR_KEY = 'sidebar_members';
function TextChannel({ channel }: { channel: Channels.Channel }) {
    if (
        (channel.channel_type === "TextChannel" ||
            channel.channel_type === "Group") &&
        channel.name.includes("nsfw")
    ) {
        const goBack = useHistory();
        const [consent, setConsent] = useState(false);
        const [ageGate, setAgeGate] = useState(false);
        if (!ageGate) {
            return (
                <AgeGate>
                    <img
                        src={"https://static.revolt.chat/emoji/mutant/26a0.svg"}
                        draggable={false}
                    />
                    <h2>{channel.name}</h2>
                    <span className="subtext">
                        This channel is marked as NSFW.{" "}
                        <a href="#">Learn more</a>
                    </span>

                    <Checkbox checked={consent} onChange={(v) => setConsent(v)}>
                        I confirm that I am at least 18 years old.
                    </Checkbox>
                    <div className="actions">
                        <Button contrast onClick={() => goBack}>
                            Go back
                        </Button>
                        <Button
                            contrast
                            onClick={() => consent && setAgeGate(true)}>
                            Enter Channel
                        </Button>
                    </div>
                </AgeGate>
            );
        }
    }

    const [showMembers, setMembers] = useState(getState().sectionToggle[MEMBERS_SIDEBAR_KEY] ?? true);

    let id = channel._id;
    return (
        <>
            <ChannelHeader
                channel={channel}
                toggleSidebar={() => {
                    setMembers(!showMembers);

                    if (showMembers) {
                        dispatch({
                            type: 'SECTION_TOGGLE_SET',
                            id: MEMBERS_SIDEBAR_KEY,
                            state: false
                        });
                    } else {
                        dispatch({
                            type: 'SECTION_TOGGLE_UNSET',
                            id: MEMBERS_SIDEBAR_KEY
                        });
                    }
                }} />
            <ChannelMain>
                <ChannelContent>
                    <VoiceHeader id={id} />
                    <MessageArea id={id} />
                    <TypingIndicator id={id} />
                    <JumpToBottom id={id} />
                    <MessageBox channel={channel} />
                </ChannelContent>
                {!isTouchscreenDevice && showMembers && (
                    <MemberSidebar channel={channel} />
                )}
            </ChannelMain>
        </>
    );
}

function VoiceChannel({ channel }: { channel: Channels.Channel }) {
    return (
        <>
            <ChannelHeader channel={channel} />
            <VoiceHeader id={channel._id} />
        </>
    );
}

export default function () {
    const { channel } = useParams<{ channel: string }>();
    return <Channel id={channel} key={channel} />;
}