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path: root/src/plugins/MyAnimeList.cpp
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#include "../../plugins/MyAnimeList.hpp"
#include "../../include/Theme.hpp"
#include "../../include/NetUtils.hpp"
#include "../../include/StringUtils.hpp"
#include <quickmedia/HtmlSearch.h>
#include <json/value.h>

namespace QuickMedia {
    // Returns {0, 0} if unknown
    static mgl::vec2i thumbnail_url_get_resolution(const std::string &url) {
        const size_t index = url.find("/r/");
        if(index == std::string::npos)
            return {0, 0};

        const size_t width_index = index + 3;
        const size_t x_index = url.find('x', width_index);
        if(x_index == std::string::npos)
            return {0, 0};

        const size_t height_index = x_index + 1;
        const size_t size_end_index = url.find('/', height_index);
        if(size_end_index == std::string::npos)
            return {0, 0};

        mgl::vec2i size;
        if(!to_num(url.c_str() + width_index, (x_index - width_index), size.x) || !to_num(url.c_str() + height_index, (size_end_index - height_index), size.y))
            return {0, 0};

        return size;
    }

    static std::shared_ptr<BodyItem> search_item_to_body_item(const Json::Value &search_item_json) {
        if(!search_item_json.isObject())
            return nullptr;

        const Json::Value &name_json = search_item_json["name"];
        const Json::Value &url_json = search_item_json["url"];
        const Json::Value &payload_json = search_item_json["payload"];
        if(!name_json.isString() || !url_json.isString() || !payload_json.isObject())
            return nullptr;

        std::string name = name_json.asString();
        const Json::Value &media_type_json = payload_json["media_type"];
        if(media_type_json.isString())
            name += " (" + media_type_json.asString() + ")";

        auto body_item = BodyItem::create("");
        body_item->url = url_json.asString();
        body_item->set_author(std::move(name));
    
        const Json::Value &image_url_json = search_item_json["thumbnail_url"];
        body_item->thumbnail_size = {116, 76};
        if(image_url_json.isString()) {
            body_item->thumbnail_url = image_url_json.asString();
            body_item->thumbnail_size = thumbnail_url_get_resolution(body_item->thumbnail_url);
        }

        std::string description;
        const Json::Value &aired_json = payload_json["aired"];
        if(aired_json.isString()) {
            if(!description.empty())
                description += '\n';
            description += "Aired: " + aired_json.asString();
        }

        const Json::Value &published_json = payload_json["published"];
        if(published_json.isString()) {
            if(!description.empty())
                description += '\n';
            description += "Published: " + published_json.asString();
        }

        const Json::Value &score_json = payload_json["score"];
        if(score_json.isString()) {
            if(!description.empty())
                description += '\n';
            description += "Score: " + score_json.asString();
        }

        const Json::Value &status_json = payload_json["status"];
        if(status_json.isString()) {
            if(!description.empty())
                description += '\n';
            description += "Status: " + status_json.asString();
        }

        if(!description.empty()) {
            body_item->set_description(std::move(description));
            body_item->set_description_color(get_theme().faded_text_color);
        }

        return body_item;
    }

    SearchResult MyAnimeListSearchPage::search(const std::string &str, BodyItems &result_items) {
        std::string url = "https://myanimelist.net/search/prefix.json?type=all&keyword=";
        url += url_param_encode(str) + "&v=1";

        Json::Value json_root;
        DownloadResult download_result = download_json(json_root, url, {}, true);
        if(download_result != DownloadResult::OK) return download_result_to_search_result(download_result);

        if(!json_root.isObject())
            return SearchResult::ERR;

        const Json::Value &categories_json = json_root["categories"];
        if(!categories_json.isArray())
            return SearchResult::ERR;

        BodyItems anime_items;
        BodyItems manga_items;
        for(const Json::Value &category_json : categories_json) {
            if(!category_json.isObject())
                continue;

            const Json::Value &type_json = category_json["type"];
            const Json::Value &items_json = category_json["items"];
            if(!type_json.isString() || !items_json.isArray())
                continue;

            if(strcmp(type_json.asCString(), "anime") == 0) {
                for(const Json::Value &item_json : items_json) {
                    auto body_item = search_item_to_body_item(item_json);
                    if(body_item)
                        anime_items.push_back(std::move(body_item));
                }
            } else if(strcmp(type_json.asCString(), "manga") == 0) {
                for(const Json::Value &item_json : items_json) {
                    auto body_item = search_item_to_body_item(item_json);
                    if(body_item)
                        manga_items.push_back(std::move(body_item));
                }
            }
        }

        if(!anime_items.empty()) {
            auto anime_title_item = BodyItem::create("", false);
            anime_title_item->set_author("Anime");
            result_items.push_back(std::move(anime_title_item));
            result_items.insert(result_items.end(), std::move_iterator(anime_items.begin()), std::move_iterator(anime_items.end()));
        }

        if(!manga_items.empty()) {
            auto manga_title_item = BodyItem::create("", false);
            manga_title_item->set_author("Manga");
            result_items.push_back(std::move(manga_title_item));
            result_items.insert(result_items.end(), std::move_iterator(manga_items.begin()), std::move_iterator(manga_items.end()));
        }

        return SearchResult::OK;
    }

    PluginResult MyAnimeListSearchPage::submit(const SubmitArgs &args, std::vector<Tab> &result_tabs) {
        if(args.url.empty())
            return PluginResult::OK;

        result_tabs.push_back({ create_body(), std::make_unique<MyAnimeListDetailsPage>(program, args.url), nullptr });
        result_tabs.push_back({ create_body(false, true), std::make_unique<MyAnimeListRecommendationsPage>(program, args.url), nullptr });
        return PluginResult::OK;
    }

    PluginResult MyAnimeListDetailsPage::submit(const SubmitArgs &args, std::vector<Tab> &result_tabs) {
        return PluginResult::OK;
    }

    PluginResult MyAnimeListDetailsPage::lazy_fetch(BodyItems &result_items) {
        std::string website_data;
        DownloadResult download_result = download_to_string(url, website_data, {}, true);
        if(download_result != DownloadResult::OK) return download_result_to_plugin_result(download_result);

        std::string thumbnail_url;
        std::string description;

        QuickMediaHtmlSearch html_search;
        int result = quickmedia_html_search_init(&html_search, website_data.c_str(), website_data.size());
        if(result != 0)
            return PluginResult::ERR;

        quickmedia_html_find_nodes_xpath(&html_search, "//img[itemprop='image']",
            [](QuickMediaMatchNode *node, void *userdata) {
                std::string *thumbnail_url = (std::string*)userdata;
                QuickMediaStringView data_src = quickmedia_html_node_get_attribute_value(node->node, "data-src");
                if(data_src.data) {
                    thumbnail_url->assign(data_src.data, data_src.size);
                    html_unescape_sequences(*thumbnail_url);
                }
                return 1;
            }, &thumbnail_url);

        quickmedia_html_find_nodes_xpath(&html_search, "//p[itemprop='description']",
            [](QuickMediaMatchNode *node, void *userdata) {
                std::string *description = (std::string*)userdata;
                QuickMediaStringView text = quickmedia_html_node_get_text(node);
                if(text.data) {
                    *description = "Synopsis:\n";
                    description->append(text.data, text.size);
                    html_unescape_sequences(*description);
                }
                return 1;
            }, &description);

        quickmedia_html_search_deinit(&html_search);

        auto synopsis_body_item = BodyItem::create("");
        synopsis_body_item->set_description(std::move(description));
        synopsis_body_item->thumbnail_url = std::move(thumbnail_url);
        synopsis_body_item->thumbnail_size = {225, 337};
        result_items.push_back(std::move(synopsis_body_item));

        return PluginResult::OK;
    }

    PluginResult MyAnimeListRecommendationsPage::submit(const SubmitArgs &args, std::vector<Tab> &result_tabs) {
        result_tabs.push_back({ create_body(), std::make_unique<MyAnimeListDetailsPage>(program, args.url), nullptr });
        result_tabs.push_back({ create_body(false, true), std::make_unique<MyAnimeListRecommendationsPage>(program, args.url), nullptr });
        return PluginResult::OK;
    }

    static std::string img_alt_get_title(const std::string &alt) {
        size_t index = alt.find(':');
        if(index == std::string::npos)
            return alt;
        return alt.substr(index + 2);
    }

    PluginResult MyAnimeListRecommendationsPage::lazy_fetch(BodyItems &result_items) {
        std::string website_data;
        DownloadResult download_result = download_to_string(url + "/userrecs", website_data, {}, true);
        if(download_result != DownloadResult::OK) return download_result_to_plugin_result(download_result);

        QuickMediaHtmlSearch html_search;
        int result = quickmedia_html_search_init(&html_search, website_data.c_str(), website_data.size());
        if(result != 0)
            return PluginResult::ERR;

        quickmedia_html_find_nodes_xpath(&html_search, "//div[class='picSurround']/a",
            [](QuickMediaMatchNode *node, void *userdata) {
                BodyItems *result_items = (BodyItems*)userdata;
                QuickMediaStringView href = quickmedia_html_node_get_attribute_value(node->node, "href");
                if(!href.data)
                    return 0;

                auto body_item = BodyItem::create("");
                body_item->url.assign(href.data, href.size);
                html_unescape_sequences(body_item->url);
                result_items->push_back(body_item);
                if(!node->node->first_child || !node->node->first_child->node.name.data || node->node->first_child->node.name.size != 3 || memcmp(node->node->first_child->node.name.data, "img", 3) != 0)
                    return 0;

                QuickMediaStringView data_src = quickmedia_html_node_get_attribute_value(&node->node->first_child->node, "data-src");
                QuickMediaStringView alt = quickmedia_html_node_get_attribute_value(&node->node->first_child->node, "alt");
                if(data_src.data && alt.data) {
                    std::string title = img_alt_get_title(std::string(alt.data, alt.size));
                    html_unescape_sequences(title);
                    body_item->set_author(std::move(title));

                    body_item->thumbnail_url.assign(data_src.data, data_src.size);
                    html_unescape_sequences(body_item->thumbnail_url);

                    if(body_item->thumbnail_url.empty())
                        body_item->thumbnail_size = {50, 70};
                    else
                        body_item->thumbnail_size = thumbnail_url_get_resolution(body_item->thumbnail_url);
                }
                return 0;
            }, &result_items);

        BodyItemContext body_item_image_context;
        body_item_image_context.body_items = &result_items;
        body_item_image_context.index = 0;

        // TODO: Fix, incorrect descriptions!
        #if 0
        quickmedia_html_find_nodes_xpath(&html_search, "//div[class='*detail-user-recs-text']",
            [](QuickMediaMatchNode *node, void *userdata) {
                BodyItemContext *item_data = (BodyItemContext*)userdata;
                QuickMediaStringView text = quickmedia_html_node_get_text(node);
                if(text.data && item_data->index < item_data->body_items->size()) {
                    std::string description(text.data, text.size);
                    html_unescape_sequences(description);
                    (*item_data->body_items)[item_data->index]->set_description(std::move(description));
                    (*item_data->body_items)[item_data->index]->set_description_color(get_theme().faded_text_color);
                    item_data->index++;
                }
                return 0;
            }, &body_item_image_context);
        #endif

        /*
        quickmedia_html_find_nodes_xpath(&html_search, "//div[class='borderClass']//div[class='*detail-user-recs-text']",
            [](QuickMediaMatchNode *node, void *userdata) {
                BodyItems *result_items = (BodyItems*)userdata;
                QuickMediaStringView text = quickmedia_html_node_get_text(node);
                if(text.data) {
                    std::string description(text.data, text.size);
                    html_unescape_sequences(description);

                    auto body_item = BodyItem::create("");
                    body_item->set_description(std::move(description));
                    body_item->set_description_color(get_theme().faded_text_color);
                    result_items->push_back(std::move(body_item));
                }
                return 0;
            }, &result_items);
        */

        quickmedia_html_search_deinit(&html_search);
        return PluginResult::OK;
    }
}