var neoColourOptions = [
        {name: 'weechat.color.chat_nick_self', label: 'Your nickname', variable: '--neorelay-nick-self'},
        {name: 'weechat.color.chat_nick', label: 'Regular nickname fallback', variable: '--neorelay-nick'},
        {name: 'weechat.color.chat_nick_other', label: 'Other private nicknames', variable: '--neorelay-nick-other'},
        {name: 'weechat.color.nicklist_away', label: 'Away / AFK', variable: '--neorelay-nick-away'},
        {name: 'weechat.color.chat_highlight', label: 'Highlight foreground', variable: '--neorelay-chat-highlight'},
        {name: 'weechat.color.chat_highlight_bg', label: 'Highlight background', variable: '--neorelay-chat-highlight-bg'},
        {name: 'weechat.color.chat_time', label: 'Timestamp', variable: '--neorelay-chat-time'}
    ];
    var neoPrefixOption = 'irc.color.nick_prefixes';
    var neoPaletteOption = 'weechat.color.chat_nick_colors';
    $scope.neoWeeChatColours = {loading: false, status: '', items: neoColourOptions, rows: {}, values: {}, prefixes: {}, prefixRaw: '', palettePreview: []};
    $scope.neoWeeChatColourPreview = neoResolveWeeChatColour;
    $scope.updateNeoPalettePreview = function() {
        $scope.neoWeeChatColours.palettePreview = String($scope.neoWeeChatColours.values[neoPaletteOption] || '').split(',').map(function(value) { return value.trim(); }).filter(neoValidWeeChatColour);
    };

    function neoParsePrefixes(value) {
        var result = {};
        String(value || '').split(';').forEach(function(entry) {
            var match = entry.match(/^([A-Za-z*]):([^;]+)$/);
            if (match) result[match[1]] = match[2].replace(/^[*!/_|]+/, '');
        });
        return result;
    }

    function neoApplyRelayColours() {
        neoColourOptions.forEach(function(item) {
            var value = $scope.neoWeeChatColours.values[item.name];
            document.documentElement.style.setProperty(item.variable, neoResolveWeeChatColour(value));
        });
        var prefixes = $scope.neoWeeChatColours.prefixes;
        document.documentElement.style.setProperty('--neorelay-nick-op', neoResolveWeeChatColour(prefixes.o || prefixes.a || prefixes.q || prefixes['*']));
        document.documentElement.style.setProperty('--neorelay-nick-halfop', neoResolveWeeChatColour(prefixes.h || prefixes['*']));
        document.documentElement.style.setProperty('--neorelay-nick-voice', neoResolveWeeChatColour(prefixes.v || prefixes['*']));
    }

    $scope.loadNeoWeeChatColours = function() {
        if (!$rootScope.connected || $scope.neoWeeChatColours.loading) return;
        $scope.neoWeeChatColours.loading = true;
        $scope.neoWeeChatColours.status = 'Loading WeeChat colours...';
        var names = neoColourOptions.map(function(item) { return item.name; }).concat([neoPrefixOption, neoPaletteOption]);
        Promise.all(names.map(function(name) { return connection.requestInfolist('option', 0, name); })).then(function(results) {
            $scope.$applyAsync(function() {
                results.forEach(function(rows) {
                    if (!rows[0]) return;
                    var row = neoNormalizeOption(rows[0]);
                    neoLoadedOptions[row.name] = row;
                    $scope.neoWeeChatColours.rows[row.name] = row;
                    $scope.neoWeeChatColours.values[row.name] = row.value;
                });
                $scope.neoWeeChatColours.prefixRaw = $scope.neoWeeChatColours.values[neoPrefixOption] || '';
                $scope.neoWeeChatColours.prefixes = neoParsePrefixes($scope.neoWeeChatColours.prefixRaw);
                $scope.updateNeoPalettePreview();
                neoApplyRelayColours();
                $scope.neoWeeChatColours.loading = false;
                $scope.neoWeeChatColours.status = 'Loaded from WeeChat.';
            });
        }, function() {
            $scope.$applyAsync(function() {
                $scope.neoWeeChatColours.loading = false;
                $scope.neoWeeChatColours.status = 'Unable to load WeeChat colours.';
            });
        });
    };

    $scope.setNeoWeeChatColour = function(name) {
        var row = $scope.neoWeeChatColours.rows[name];
        var value = $scope.neoWeeChatColours.values[name];
        neoWriteOption(row, value, function(updated) {
            $scope.neoWeeChatColours.values[name] = updated.value;
            if (name === neoPaletteOption) $scope.updateNeoPalettePreview();
            neoApplyRelayColours();
            $scope.neoWeeChatColours.status = 'Saved ' + name + ' to WeeChat.';
        }, function(message) { $scope.neoWeeChatColours.status = message; });
    };

    $scope.setNeoNickPrefixColour = function(mode) {
        var row = $scope.neoWeeChatColours.rows[neoPrefixOption];
        if (!row || !neoValidWeeChatColour($scope.neoWeeChatColours.prefixes[mode])) return;
        var found = false;
        var entries = String($scope.neoWeeChatColours.prefixRaw || '').split(';').filter(Boolean).map(function(entry) {
            if (entry.slice(0, 2) === mode + ':') {
                found = true;
                return mode + ':' + $scope.neoWeeChatColours.prefixes[mode];
            }
            return entry;
        });
        if (!found) entries.push(mode + ':' + $scope.neoWeeChatColours.prefixes[mode]);
        var value = entries.join(';');
        neoWriteOption(row, value, function(updated) {
            $scope.neoWeeChatColours.prefixRaw = updated.value;
            $scope.neoWeeChatColours.values[neoPrefixOption] = updated.value;
            $scope.neoWeeChatColours.prefixes = neoParsePrefixes(updated.value);
            neoApplyRelayColours();
            $scope.neoWeeChatColours.status = 'Saved IRC prefix colours to WeeChat.';
        }, function(message) { $scope.neoWeeChatColours.status = message; });
    };

    $scope.$watch(function() { return $rootScope.connected; }, function(connected) {
        if (connected) $timeout($scope.loadNeoWeeChatColours, 250);
    });