view.windowFrame = is_osx ? #extended : #solid;

var body;
var connections = [];
var show_chat = false;

class Body: Reactor.Component
{
    this var cur = 0;

    function this() {
        body = this;
    }

    function render() {
        if (connections.length == 0) return <div />;
        var c = connections[this.cur];
        this.connection = c;
        this.cid = c.id;
        var auth = c.authorized;
        var me = this;
        var callback = function(msg) {
            me.sendMsg(msg);
        };
        var right_style = show_chat ? "" : "display: none";
        return <div .content>
            <div .left-panel>
                <div .icon-and-id>
                    <div .icon style={"background: " + string2RGB(c.name, 1)}>
                    {c.name[0].toUpperCase()}
                    </div>
                    <div>
                        <div .id style="font-weight: bold; font-size: 1.2em;">{c.name}</div>
                        <div .id>({c.peer_id})</div>
                        <div style="margin-top: 1.2em">{translate('Connected')} {" "} <span #time>{getElaspsed(c.time)}</span></div>
                    </div>
                </div>
                <div />
                {c.is_file_transfer || c.port_forward ? "" : <div>{translate('Permissions')}</div>}
                {c.is_file_transfer || c.port_forward ? "" : <div .permissions>
                    <div class={!c.keyboard ? "disabled" : ""} title={translate('Allow using keyboard and mouse')}><icon .keyboard /></div>
                    <div class={!c.clipboard ? "disabled" : ""} title={translate('Allow using clipboard')}><icon .clipboard /></div>
                    <div class={!c.audio ? "disabled" : ""} title={translate('Allow hearing sound')}><icon .audio /></div>
                    <div class={!c.file ? "disabled" : ""} title={translate('Allow file transfer')}><icon .file /></div>
                </div>}
                {c.port_forward ? <div>Port Forwarding: {c.port_forward}</div> : ""}
                <div style="size:*"/>
                <div .buttons>
                     {auth ? "" : <button .button tabindex="-1" #accept>{translate('Accept')}</button>}
                     {auth ? "" : <button .button tabindex="-1" .outline #dismiss>{translate('Dismiss')}</button>}
                     {auth ? <button .button tabindex="-1" #disconnect>{translate('Disconnect')}</button> : ""}
                </div>
                {c.is_file_transfer || c.port_forward ? "" : <div .chaticon>{svg_chat}</div>}
            </div>
            <div .right-panel style={right_style}>
                {c.is_file_transfer || c.port_forward ? "" : <ChatBox msgs={c.msgs} callback={callback} />}
            </div>
        </div>;
    }

    function sendMsg(text) {
        if (!text) return;
        var { cid, connection } = this;
        checkClickTime(function() {
            connection.msgs.push({ name: "me", text: text, time: getNowStr()});
            handler.send_msg(cid, text);
            body.update();
        });
    }

    event click $(icon.keyboard) (e) {
        var { cid, connection } = this;
        checkClickTime(function() {
            connection.keyboard = !connection.keyboard;
            body.update();
            handler.switch_permission(cid, "keyboard", connection.keyboard);
        });
    }

    event click $(icon.clipboard) {
        var { cid, connection } = this;
        checkClickTime(function() {
            connection.clipboard = !connection.clipboard;
            body.update();
            handler.switch_permission(cid, "clipboard", connection.clipboard);
        });
    }

    event click $(icon.audio) {
        var { cid, connection } = this;
        checkClickTime(function() {
            connection.audio = !connection.audio;
            body.update();
            handler.switch_permission(cid, "audio", connection.audio);
        });
    }

    event click $(icon.file) {
        var { cid, connection } = this;
        checkClickTime(function() {
            connection.file = !connection.file;
            body.update();
            handler.switch_permission(cid, "file", connection.file);
        });
    }

    event click $(button#accept) {
        var { cid, connection } = this;
        checkClickTime(function() {
            connection.authorized = true;
            body.update();
            handler.authorize(cid);
            self.timer(30ms, function() {
                view.windowState = View.WINDOW_MINIMIZED;
            });
        });
    }

    event click $(button#dismiss) {
        var cid = this.cid;
        checkClickTime(function() {
            handler.close(cid);
        });
    }

    event click $(button#disconnect) {
        var cid = this.cid;
        checkClickTime(function() {
            handler.close(cid);
        });
    }
}

$(body).content(<Body />);

var header;

class Header: Reactor.Component
{
    function this() {
        header = this;
    }

    function render() {
        var me = this;
        var conn = connections[body.cur];
        if (conn && conn.unreaded > 0) {;
            var el = me.select("#unreaded" + conn.id);
            if (el) el.style.set {
                display: "inline-block",
            };
            self.timer(300ms, function() {
                conn.unreaded = 0;
                var el = me.select("#unreaded" + conn.id);
                if (el) el.style.set {
                    display: "none",
                };
            });
        }
        var tabs = connections.map(function(c, i) { return me.renderTab(c, i) });
        return <div .tabs-wrapper><div .tabs>
            {tabs}
            </div>
            <div .tab-arrows>
                <span #left-arrow>&lt;</span>
                <span #right-arrow>&gt;</span>
            </div>
        </div>;
    }

    function renderTab(c, i) {
        var cur = body.cur;
        return <div class={i == cur ? "active-tab tab" : "tab"}>
            {c.name}
            {c.unreaded > 0 ? <span .unreaded id={"unreaded" + c.id}>{c.unreaded}</span> : ""}
        </div>;
    }

    function update_cur(idx) {
        checkClickTime(function() {
            body.cur = idx;
            update();
            self.timer(1ms, adjustHeader);
        });
    }

    event click $(div.tab) (_, me) {
        var idx = me.index;
        if (idx == body.cur) return;
        this.update_cur(idx);
    }

    event click $(span#left-arrow) {
        var cur = body.cur;
        if (cur == 0) return;
        this.update_cur(cur - 1);
    }

    event click $(span#right-arrow) {
        var cur = body.cur;
        if (cur == connections.length - 1) return;
        this.update_cur(cur + 1);
    }
}

if (is_osx) {
    $(header).content(<Header />);
    $(header).attributes["role"] = "window-caption";
} else {
    $(div.window-toolbar).content(<Header />);
    setWindowButontsAndIcon(true);
}

event click $(div.chaticon) {
    checkClickTime(function() {
        show_chat = !show_chat;
        adaptSizeForChat();
    });
}

function checkClickTime(callback) {
    callback();
}

function adaptSizeForChat() {
    $(div.right-panel).style.set {
        display: show_chat ? "block" : "none",
    };
    var (x, y, w, h) = view.box(#rectw, #border, #screen);
    if (show_chat && w < 600) {
        view.move(x - (600 - w), y, 600, h);
    } else if (!show_chat && w > 450) {
        view.move(x + (w - 300), y, 300, h);
    }
}

function update() {
    header.update();
    body.update();
}

function bring_to_top(idx=-1) {
    if (view.windowState == View.WINDOW_HIDDEN || view.windowState == View.WINDOW_MINIMIZED) {
        if (is_linux) {
            view.focus = self;
        } else {
            view.windowState = View.WINDOW_SHOWN;
        }
        if (idx >= 0) body.cur = idx;
    } else {
        view.windowTopmost = true;
        view.windowTopmost = false;
    }
}

handler.addConnection = function(id, is_file_transfer, port_forward, peer_id, name, authorized, keyboard, clipboard, audio, file) {
    var conn;
    connections.map(function(c) {
        if (c.id == id) conn = c;
    });
    if (conn) {
        conn.authorized = authorized;
        update();
        return;
    }
    if (!name) name = "NA";
    connections.push({
        id: id, is_file_transfer: is_file_transfer, peer_id: peer_id,
        port_forward: port_forward,
        name: name, authorized: authorized, time: new Date(),
        keyboard: keyboard, clipboard: clipboard, msgs: [], unreaded: 0,
        audio: audio, file: file
    });
    body.cur = connections.length - 1;
    bring_to_top();
    update();
    self.timer(1ms, adjustHeader);
    if (authorized) {
        self.timer(3s, function() {
            view.windowState = View.WINDOW_MINIMIZED;
        });
    }
}

handler.removeConnection = function(id) {
    var i = -1;
    connections.map(function(c, idx) {
        if (c.id == id) i = idx;
    });
    connections.splice(i, 1);
    if (connections.length == 0) {
        handler.exit();
    } else {
        if (body.cur >= i && body.cur > 0) body.cur -= 1;
        update();
    }
}

handler.newMessage = function(id, text) { 
    var idx = -1;
    connections.map(function(c, i) {
        if (c.id == id) idx = i;
    });
    var conn = connections[idx];
    if (!conn) return;
    conn.msgs.push({name: conn.name, text: text, time: getNowStr()});
    bring_to_top(idx);
    if (idx == body.cur) {
        var shouldAdapt = !show_chat;
        show_chat = true;
        if (shouldAdapt) adaptSizeForChat();
    }
    conn.unreaded += 1;
    update();
}

handler.awake = function() {
    view.windowState = View.WINDOW_SHOWN;
    view.focus = self;
}

view << event statechange {
    adjustBorder();
}

function self.ready() {
    adjustBorder();
    var (sw, sh) = view.screenBox(#workarea, #dimension);
    var w = 300;
    var h = 400;
    view.move(sw - w, 0, w, h);
}

function getElaspsed(time) {
    var now = new Date();
    var seconds = Date.diff(time, now, #seconds);
    var hours = seconds / 3600;
    var days = hours / 24;
    hours = hours % 24;
    var minutes = seconds % 3600 / 60;
    seconds = seconds % 60;
    var out = String.printf("%02d:%02d:%02d", hours, minutes, seconds);
    if (days > 0) {
        out = String.printf("%d day%s %s", days, days > 1 ? "s" : "", out);
    }
    return out;
}

function updateTime() {
    self.timer(1s, function() {
        var el = $(#time);
        if (el) {
            var c = connections[body.cur];
            if (c) {
                el.text = getElaspsed(c.time);
            }
        }
        updateTime();
    });
}

updateTime();

function self.closing() {
    view.windowState = View.WINDOW_HIDDEN;
    return false;
}


function adjustHeader() {
    var hw = $(header).box(#width);
    var tabswrapper = $(div.tabs-wrapper);
    var tabs = $(div.tabs);
    var arrows = $(div.tab-arrows);
    if (!arrows) return;
    var n = connections.length;
    var wtab = 80;
    var max = hw - 98;
    var need_width = n * wtab + 2; // include border of active tab
    if (need_width < max) {
        arrows.style.set {
            display: "none",
        };
        tabs.style.set {
            width: need_width,
            margin-left: 0,
        };
        tabswrapper.style.set {
            width: need_width,
        };
    } else {
        var margin = (body.cur + 1) * wtab - max + 30;
        if (margin < 0) margin = 0;
        arrows.style.set {
            display: "block",
        };
        tabs.style.set {
            width: (max - 20 + margin) + 'px',
            margin-left: -margin + 'px'
        };
        tabswrapper.style.set {
            width: (max + 10) + 'px',
        };
    }
}

view.on("size", adjustHeader);

// handler.addConnection(0, false, 0, "", "test1", true, false, false, true, true);
// handler.addConnection(1, false, 0, "", "test2--------", true, false, false, false, false);
// handler.addConnection(2, false, 0, "", "test3", true, false, false, false, false);
// handler.newMessage(0, 'h');