const jmpInfo = JSON.parse(window.atob("@@data@@"));
window.jmpInfo = jmpInfo;

const features = [
    "filedownload",
    "displaylanguage",
    "htmlaudioautoplay",
    "htmlvideoautoplay",
    "externallinks",
    "clientsettings",
    "multiserver",
    "exitmenu",
    "remotecontrol",
    "fullscreenchange",
    "filedownload",
    "remotevideo",
    "displaymode",
    "screensaver",
    "fileinput"
];

const plugins = [
    'mpvVideoPlayer',
    'mpvAudioPlayer',
    'jmpInputPlugin',
    'jmpUpdatePlugin',
    'jellyscrubPlugin',
    'skipIntroPlugin'
];

function loadScript(src) {
    return new Promise((resolve, reject) => {
        const s = document.createElement('script');
        s.src = src;
        s.onload = resolve;
        s.onerror = reject;
        document.head.appendChild(s);
    });
}

// Add plugin loaders
for (const plugin of plugins) {
    window[plugin] = async () => {
        await loadScript(`${jmpInfo.scriptPath}${plugin}.js`);
        return window["_" + plugin];
    };
}

window.NativeShell = {
    openUrl(url, target) {
        window.api.system.openExternalUrl(url);
    },

    downloadFile(downloadInfo) {
        window.api.system.openExternalUrl(downloadInfo.url);
    },

    openClientSettings() {
        showSettingsModal();
    },

    getPlugins() {
        return plugins;
    }
};

function getDeviceProfile() {
    const CodecProfiles = [];

    if (jmpInfo.settings.video.force_transcode_dovi) {
        CodecProfiles.push({
            'Type': 'Video',
            'Conditions': [
                {
                    'Condition': 'NotEquals',
                    'Property': 'VideoRangeType',
                    'Value': 'DOVI'
                }
            ]
        });
    }

    if (jmpInfo.settings.video.force_transcode_hdr) {
        CodecProfiles.push({
            'Type': 'Video',
            'Conditions': [
                {
                    'Condition': 'Equals',
                    'Property': 'VideoRangeType',
                    'Value': 'SDR'
                }
            ]
        });
    }

    if (jmpInfo.settings.video.force_transcode_hi10p) {
        CodecProfiles.push({
            'Type': 'Video',
            'Conditions': [
                {
                    'Condition': 'LessThanEqual',
                    'Property': 'VideoBitDepth',
                    'Value': '8',
                }
            ]
        });
    }

    if (jmpInfo.settings.video.force_transcode_hevc) {
        CodecProfiles.push({
            'Type': 'Video',
            'Codec': 'hevc',
            'Conditions': [
                {
                    'Condition': 'Equals',
                    'Property': 'Width',
                    'Value': '0',
                }
            ],
        });
        CodecProfiles.push({
            'Type': 'Video',
            'Codec': 'h265',
            'Conditions': [
                {
                    'Condition': 'Equals',
                    'Property': 'Width',
                    'Value': '0',
                }
            ],
        });
    }

    if (jmpInfo.settings.video.force_transcode_av1) {
        CodecProfiles.push({
            'Type': 'Video',
            'Codec': 'av1',
            'Conditions': [
                {
                    'Condition': 'Equals',
                    'Property': 'Width',
                    'Value': '0',
                }
            ],
        });
    }

    if (jmpInfo.settings.video.force_transcode_4k) {
        CodecProfiles.push({
            'Type': 'Video',
            'Conditions': [
                {
                    'Condition': 'LessThanEqual',
                    'Property': 'Width',
                    'Value': '1920',
                },
                {
                    'Condition': 'LessThanEqual',
                    'Property': 'Height',
                    'Value': '1080',
                }
            ]
        });
    }

    const DirectPlayProfiles = [{'Type': 'Audio'}, {'Type': 'Photo'}];

    if (!jmpInfo.settings.video.always_force_transcode) {
        DirectPlayProfiles.push({'Type': 'Video'});
    }

    return {
        'Name': 'Jellyfin Media Player',
        'MaxStaticBitrate': 1000000000,
        'MusicStreamingTranscodingBitrate': 1280000,
        'TimelineOffsetSeconds': 5,
        'TranscodingProfiles': [
            {'Type': 'Audio'},
            {
                'Container': 'ts',
                'Type': 'Video',
                'Protocol': 'hls',
                'AudioCodec': 'aac,mp3,ac3,opus,vorbis',
                'VideoCodec': jmpInfo.settings.video.allow_transcode_to_hevc
                    ? (
                        jmpInfo.settings.video.prefer_transcode_to_h265
                         ? 'h265,hevc,h264,mpeg4,mpeg2video'
                         : 'h264,h265,hevc,mpeg4,mpeg2video'
                    )
                    : 'h264,mpeg4,mpeg2video',
                'MaxAudioChannels': jmpInfo.settings.audio.channels === "2.0" ? '2' : '6'
            },
            {'Container': 'jpeg', 'Type': 'Photo'}
        ],
        DirectPlayProfiles,
        'ResponseProfiles': [],
        'ContainerProfiles': [],
        CodecProfiles,
        'SubtitleProfiles': [
            {'Format': 'srt', 'Method': 'External'},
            {'Format': 'srt', 'Method': 'Embed'},
            {'Format': 'ass', 'Method': 'External'},
            {'Format': 'ass', 'Method': 'Embed'},
            {'Format': 'sub', 'Method': 'Embed'},
            {'Format': 'sub', 'Method': 'External'},
            {'Format': 'ssa', 'Method': 'Embed'},
            {'Format': 'ssa', 'Method': 'External'},
            {'Format': 'smi', 'Method': 'Embed'},
            {'Format': 'smi', 'Method': 'External'},
            {'Format': 'pgssub', 'Method': 'Embed'},
            {'Format': 'dvdsub', 'Method': 'Embed'},
            {'Format': 'dvbsub', 'Method': 'Embed'},
            {'Format': 'pgs', 'Method': 'Embed'}
        ]
    };
}

async function createApi() {
    try {
        // Can't append script until document exists
        await new Promise(resolve => {
            document.addEventListener('DOMContentLoaded', resolve);
        });

        await loadScript('qrc:///qtwebchannel/qwebchannel.js');
    } catch (e) {
        // try clearing out any cached CSPs
        let foundCache = false;
        for (const cache of await caches.keys()) {
            const dataDeleted = await caches.delete(cache);
            if (dataDeleted) {
                foundCache = true;
            }
        }
        if (foundCache) {
            window.location.reload();
        }
        throw e;
    }

    const channel = await new Promise((resolve) => {
        /*global QWebChannel */
        new QWebChannel(window.qt.webChannelTransport, resolve);
    });
    return channel.objects;
}

let rawSettings = {};
Object.assign(rawSettings, jmpInfo.settings);
const settingsFromStorage = window.sessionStorage.getItem('settings');
if (settingsFromStorage) {
    rawSettings = JSON.parse(settingsFromStorage);
    Object.assign(jmpInfo.settings, rawSettings);
}

const settingsDescriptionsFromStorage = window.sessionStorage.getItem('settingsDescriptions');
if (settingsDescriptionsFromStorage) {
    jmpInfo.settingsDescriptions = JSON.parse(settingsDescriptionsFromStorage);
}

jmpInfo.settingsDescriptionsUpdate = [];
jmpInfo.settingsUpdate = [];
window.apiPromise = createApi();
window.initCompleted = new Promise(async (resolve) => {
    window.api = await window.apiPromise;
    const settingUpdate = (section, key) => (
        (data) => new Promise(resolve => {
            rawSettings[section][key] = data;
            window.sessionStorage.setItem("settings", JSON.stringify(rawSettings));
            window.api.settings.setValue(section, key, data, resolve);
        })
    );
    const setSetting = (section, key) => {
        Object.defineProperty(jmpInfo.settings[section], key, {
            set: settingUpdate(section, key),
            get: () => rawSettings[section][key]
        });
    };
    for (const settingGroup of Object.keys(rawSettings)) {
        jmpInfo.settings[settingGroup] = {};
        for (const setting of Object.keys(rawSettings[settingGroup])) {
            setSetting(settingGroup, setting, jmpInfo.settings[settingGroup][setting]);
        }
    }
    window.api.settings.sectionValueUpdate.connect(
        (section, data) => {
            Object.assign(rawSettings[section], data);
            for (const callback of jmpInfo.settingsUpdate) {
                try {
                    callback(section, data);
                } catch (e) {
                    console.error("Update handler failed:", e);
                }
            }

            // Settings will be outdated if page reloads, so save them to session storage
            window.sessionStorage.setItem("settings", JSON.stringify(rawSettings));
        }
    );
    window.api.settings.groupUpdate.connect(
        (section, data) => {
            jmpInfo.settingsDescriptions[section] = data.settings;
            for (const callback of jmpInfo.settingsDescriptionsUpdate) {
                try {
                    callback(section, data);
                } catch (e) {
                    console.error("Description update handler failed:", e);
                }
            }

            // Settings will be outdated if page reloads, so save them to session storage
            window.sessionStorage.setItem("settingsDescriptions", JSON.stringify(jmpInfo.settingsDescriptions));
        }
    );
    resolve();
});

window.NativeShell.AppHost = {
    init() {},
    getDefaultLayout() {
        return jmpInfo.mode;
    },
    supports(command) {
        return features.includes(command.toLowerCase());
    },
    getDeviceProfile,
    getSyncProfile: getDeviceProfile,
    appName() {
        return "Jellyfin Media Player";
    },
    appVersion() {
        return navigator.userAgent.split(" ")[1];
    },
    deviceName() {
        return jmpInfo.deviceName;
    },
    exit() {
        window.api.system.exit();
    }
};

async function showSettingsModal() {
    await initCompleted;

    const modalContainer = document.createElement("div");
    modalContainer.className = "dialogContainer";
    modalContainer.style.backgroundColor = "rgba(0,0,0,0.5)";
    modalContainer.addEventListener("click", e => {
        if (e.target == modalContainer) {
            modalContainer.remove();
        }
    });
    document.body.appendChild(modalContainer);

    const modalContainer2 = document.createElement("div");
    modalContainer2.className = "focuscontainer dialog dialog-fixedSize dialog-small formDialog opened";
    modalContainer.appendChild(modalContainer2);

    const modalHeader = document.createElement("div");
    modalHeader.className = "formDialogHeader";
    modalContainer2.appendChild(modalHeader);

    const title = document.createElement("h3");
    title.className = "formDialogHeaderTitle";
    title.textContent = "Jellyfin Media Player Settings";
    modalHeader.appendChild(title);

    const modalContents = document.createElement("div");
    modalContents.className = "formDialogContent smoothScrollY";
    modalContents.style.paddingTop = "2em";
    modalContents.style.marginBottom = "6.2em";
    modalContainer2.appendChild(modalContents);

    const settingUpdateHandlers = {};
    for (const section of Object.keys(jmpInfo.settingsDescriptions)) {
        const group = document.createElement("fieldset");
        group.className = "editItemMetadataForm editMetadataForm dialog-content-centered";
        group.style.border = 0;
        group.style.outline = 0;
        modalContents.appendChild(group);

        const createSection = async (clear) => {
            if (clear) {
                group.innerHTML = "";
            }

            const values = jmpInfo.settings[section];
            const settings = jmpInfo.settingsDescriptions[section];

            const legend = document.createElement("legend");
            const legendHeader = document.createElement("h2");
            legendHeader.textContent = section;
            legendHeader.style.textTransform = "capitalize";
            legend.appendChild(legendHeader);
            if (section == "plugins") {
                const legendSubHeader = document.createElement("h4");
                legendSubHeader.textContent = "Plugins are UNOFFICIAL and require a restart to take effect.";
                legend.appendChild(legendSubHeader);
            }
            group.appendChild(legend);

            for (const setting of settings) {
                const label = document.createElement("label");
                label.className = "inputContainer";
                label.style.marginBottom = "1.8em";
                label.style.display = "block";
                label.style.textTransform = "capitalize";
                if (setting.options) {
                    const safeValues = {};
                    const control = document.createElement("select");
                    control.className = "emby-select-withcolor emby-select";
                    for (const option of setting.options) {
                        safeValues[String(option.value)] = option.value;
                        const opt = document.createElement("option");
                        opt.value = option.value;
                        opt.selected = option.value == values[setting.key];
                        let optionName = option.title;
                        const swTest = `${section}.${setting.key}.`;
                        const swTest2 = `${section}.`;
                        if (optionName.startsWith(swTest)) {
                            optionName = optionName.substring(swTest.length);
                        } else if (optionName.startsWith(swTest2)) {
                            optionName = optionName.substring(swTest2.length);
                        }
                        opt.appendChild(document.createTextNode(optionName));
                        control.appendChild(opt);
                    }
                    control.addEventListener("change", async (e) => {
                        jmpInfo.settings[section][setting.key] = safeValues[e.target.value];
                    });
                    const labelText = document.createElement('label');
                    labelText.className = "inputLabel";
                    labelText.textContent = setting.key + ": ";
                    label.appendChild(labelText);
                    label.appendChild(control);
                } else {
                    const control = document.createElement("input");
                    control.type = "checkbox";
                    control.checked = values[setting.key];
                    control.addEventListener("change", e => {
                        jmpInfo.settings[section][setting.key] = e.target.checked;
                    });
                    label.appendChild(control);
                    label.appendChild(document.createTextNode(" " + setting.key));
                }
                group.appendChild(label);
            }
        };
        settingUpdateHandlers[section] = () => createSection(true);
        createSection();
    }

    const onSectionUpdate = (section) => {
        if (section in settingUpdateHandlers) {
            settingUpdateHandlers[section]();
        }
    };
    jmpInfo.settingsDescriptionsUpdate.push(onSectionUpdate);
    jmpInfo.settingsUpdate.push(onSectionUpdate);

    if (jmpInfo.settings.main.userWebClient) {
        const group = document.createElement("fieldset");
        group.className = "editItemMetadataForm editMetadataForm dialog-content-centered";
        group.style.border = 0;
        group.style.outline = 0;
        modalContents.appendChild(group);
        const legend = document.createElement("legend");
        const legendHeader = document.createElement("h2");
        legendHeader.textContent = "Saved Server";
        legend.appendChild(legendHeader);
        const legendSubHeader = document.createElement("h4");
        legendSubHeader.textContent = (
            "The server you first connected to is your saved server. " +
            "It provides the web client for Jellyfin Media Player in the absence of a bundled one. " +
            "You can use this option to change it to another one. This does NOT log you off."
        );
        legend.appendChild(legendSubHeader);
        group.appendChild(legend);

        const resetSavedServer = document.createElement("button");
        resetSavedServer.className = "raised button-cancel block btnCancel emby-button";
        resetSavedServer.textContent = "Reset Saved Server"
        resetSavedServer.style.marginLeft = "auto";
        resetSavedServer.style.marginRight = "auto";
        resetSavedServer.style.maxWidth = "50%";
        resetSavedServer.addEventListener("click", async () => {
            window.jmpInfo.settings.main.userWebClient = '';
            window.location.href = jmpInfo.scriptPath + "/find-webclient.html";
        });
        group.appendChild(resetSavedServer);
    }

    const closeContainer = document.createElement("div");
    closeContainer.className = "formDialogFooter";
    modalContents.appendChild(closeContainer);

    const close = document.createElement("button");
    close.className = "raised button-cancel block btnCancel formDialogFooterItem emby-button";
    close.textContent = "Close"
    close.addEventListener("click", () => {
        modalContainer.remove();
    });
    closeContainer.appendChild(close);
}