#include "init/tasks.hpp"

#include <hex/helpers/net.hpp>
#include <hex/api/content_registry.hpp>

#include "views/view_hexeditor.hpp"
#include "views/view_pattern_editor.hpp"
#include "views/view_pattern_data.hpp"
#include "views/view_hashes.hpp"
#include "views/view_information.hpp"
#include "views/view_help.hpp"
#include "views/view_tools.hpp"
#include "views/view_strings.hpp"
#include "views/view_data_inspector.hpp"
#include "views/view_disassembler.hpp"
#include "views/view_bookmarks.hpp"
#include "views/view_patches.hpp"
#include "views/view_command_palette.hpp"
#include "views/view_settings.hpp"
#include "views/view_data_processor.hpp"
#include "views/view_yara.hpp"
#include "views/view_constants.hpp"

#include "helpers/plugin_manager.hpp"

#include <filesystem>

#include <nlohmann/json.hpp>

namespace hex::init {

    using namespace std::literals::string_literals;

    static bool checkForUpdates() {
        hex::Net net;

        auto releases = net.getJson(GitHubApiURL + "/releases/latest"s).get();
        if (releases.code != 200)
            return false;

        if (!releases.body.contains("tag_name") || !releases.body["tag_name"].is_string())
            return false;

        auto currVersion = "v" + std::string(IMHEX_VERSION).substr(0, 5);
        auto latestVersion = releases.body["tag_name"].get<std::string_view>();

        if (latestVersion != currVersion)
            getInitArguments().push_back({ "update-available", latestVersion.data() });

        return true;
    }

    static bool downloadInformation() {
        hex::Net net;

        auto tip = net.getString(ImHexApiURL + "/tip"s).get();
        if (tip.code != 200)
            return false;

        getInitArguments().push_back({ "tip-of-the-day", tip.body });

        return true;
    }

    bool createDirectories() {
        bool result = true;

        std::array paths = {
            ImHexPath::Patterns,
            ImHexPath::PatternsInclude,
            ImHexPath::Magic,
            ImHexPath::Plugins,
            ImHexPath::Resources,
            ImHexPath::Config,
            ImHexPath::Constants,
            ImHexPath::Yara,
            ImHexPath::Python
        };

        for (auto path : paths) {
            for (auto &folder : hex::getPath(path)) {
                try {
                    std::filesystem::create_directories(folder);
                } catch (...) {
                    result = false;
                }
            }
        }

        if (!result)
            getInitArguments().push_back({ "folder-creation-error", { } });

        return result;
    }

    bool loadDefaultViews() {

        ContentRegistry::Views::add<ViewHexEditor>();
        ContentRegistry::Views::add<ViewPatternEditor>();
        ContentRegistry::Views::add<ViewPatternData>();
        ContentRegistry::Views::add<ViewDataInspector>();
        ContentRegistry::Views::add<ViewHashes>();
        ContentRegistry::Views::add<ViewInformation>();
        ContentRegistry::Views::add<ViewStrings>();
        ContentRegistry::Views::add<ViewDisassembler>();
        ContentRegistry::Views::add<ViewBookmarks>();
        ContentRegistry::Views::add<ViewPatches>();
        ContentRegistry::Views::add<ViewTools>();
        ContentRegistry::Views::add<ViewCommandPalette>();
        ContentRegistry::Views::add<ViewHelp>();
        ContentRegistry::Views::add<ViewSettings>();
        ContentRegistry::Views::add<ViewDataProcessor>();
        ContentRegistry::Views::add<ViewYara>();
        ContentRegistry::Views::add<ViewConstants>();

        return true;
    }

    bool deleteSharedData() {
        SharedData::deferredCalls.clear();

        delete SharedData::currentProvider;
        SharedData::currentProvider = nullptr;

        SharedData::settingsEntries.clear();
        SharedData::settingsJson.clear();

        SharedData::commandPaletteCommands.clear();
        SharedData::patternLanguageFunctions.clear();

        for (auto &view : SharedData::views)
            delete view;
        SharedData::views.clear();

        SharedData::toolsEntries.clear();

        SharedData::dataInspectorEntries.clear();

        SharedData::bookmarkEntries.clear();

        for (auto &pattern : SharedData::patternData)
            delete pattern;
        SharedData::patternData.clear();

        SharedData::languageNames.clear();
        SharedData::languageDefinitions.clear();
        SharedData::loadedLanguageStrings.clear();

        SharedData::welcomeScreenEntries.clear();
        SharedData::footerItems.clear();

        SharedData::dataProcessorNodes.clear();

        SharedData::recentFilePaths.clear();

        SharedData::clearVariables();

        return true;
    }

    bool loadPlugins() {
        for (const auto &dir : hex::getPath(ImHexPath::Plugins)) {
            PluginManager::load(dir);
        }

        if (PluginManager::getPlugins().empty()) {
            getInitArguments().push_back({ "no-plugins", { } });
            return false;
        }

        for (const auto &plugin : PluginManager::getPlugins()) {
            plugin.initializePlugin();
        }

        return true;
    }

    bool unloadPlugins() {
        PluginManager::unload();

        return true;
    }

    bool loadSettings() {
        try {
            ContentRegistry::Settings::load();
        } catch (...) {
            return false;
        }

        return true;
    }

    bool storeSettings() {
        try {
            ContentRegistry::Settings::store();
        } catch (...) {
            return false;
        }
        return true;
    }

    std::vector<Task> getInitTasks() {
        return {
                { "Checking for updates...",    checkForUpdates     },
                { "Downloading information...", downloadInformation },
                { "Creating directories...",    createDirectories   },
                { "Loading default views...",   loadDefaultViews    },
                { "Loading plugins...",         loadPlugins         },
                { "Loading settings...",        loadSettings        },
        };
    }

    std::vector<Task> getExitTasks() {
        return {
                { "Saving settings...",         storeSettings       },
                { "Cleaning up shared data...", deleteSharedData    },
                { "Unloading plugins...",       unloadPlugins       },
        };
    }

    std::vector<Argument>& getInitArguments() {
        static std::vector<Argument> initArguments;

        return initArguments;
    }

}