101 lines
3.9 KiB
C++
101 lines
3.9 KiB
C++
#include <utility>
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#include "../routes.h"
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#include "../../numberhelper.h"
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#include "../../servehelper.h"
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#include "../../pixivclient.h"
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#include "common.h"
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static Element generate_pager(size_t page, size_t items, size_t items_per_page);
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static inline Element generate_content(const std::vector<uint64_t>& illust_ids, size_t page, size_t items_per_page);
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static inline size_t page_count(size_t items, size_t items_per_page);
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static inline std::pair<size_t, size_t> page_to_offsets(size_t page, size_t items, size_t items_per_page);
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void user_illustrations_route(const httplib::Request& req, httplib::Response& res, const Config& config, PixivClient& pixiv_client) {
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uint64_t user_id = to_ull(req.matches[1].str());
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uint64_t page = req.has_param("p") ? to_ull(req.get_param_value("p")) - 1 : 0;
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User user;
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std::vector<uint64_t> illust_ids;
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try {
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user = pixiv_client.get_user(user_id);
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illust_ids = pixiv_client.get_illusts(user_id);
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} catch (const PixivException& e) {
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if (e.status == 404) {
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res.status = 404;
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serve_error(req, res, config, "404: User not found", e.what());
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} else {
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res.status = 500;
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serve_error(req, res, config, "500: Internal server error", "Failed to fetch user information", e.what());
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}
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return;
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} catch (const std::exception& e) {
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res.status = 500;
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serve_error(req, res, config, "500: Internal server error", "Failed to fetch user information", e.what());
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return;
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}
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const constexpr size_t items_per_page = 18; // on pixiv touch
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Element body("body", {
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generate_user_header(std::move(user), config),
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generate_pager(page, illust_ids.size(), items_per_page),
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Element("br"),
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generate_content(std::move(illust_ids), page, items_per_page),
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generate_pager(page, illust_ids.size(), items_per_page)
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});
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(void)page_to_offsets;
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serve(req, res, config, user.display_name + " illustrations", std::move(body));
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}
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static Element generate_pager(size_t page, size_t items, size_t items_per_page) {
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using namespace std::string_literals;
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size_t total_pages = page_count(items, items_per_page);
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auto link = [](std::string href, const char* text, bool add_link) {
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Element b("b");
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if (add_link) {
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b.nodes.push_back(Element("a", {{"href", std::move(href)}}, {text}));
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} else {
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b.nodes.push_back(text);
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}
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return b;
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};
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return Element("div", {{"class", "center"}}, {
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link("?p=1", "First", page != 0), " ",
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link("?p="s + std::to_string(page), "Prev", page != 0), " ",
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std::to_string(page + 1), "/", std::to_string(total_pages), " ",
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link("?p="s + std::to_string(page + 2), "Next", page + 1 < total_pages), " ",
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link("?p="s + std::to_string(total_pages), "Last", page + 1 < total_pages)
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});
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}
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static inline Element generate_content(const std::vector<uint64_t>& illust_ids, size_t page, size_t items_per_page) {
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// TODO be real
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Element ul("ul");
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std::pair<size_t, size_t> illust_ids_offsets = page_to_offsets(page, illust_ids.size(), items_per_page);
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ul.nodes.reserve(items_per_page);
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for (size_t i = illust_ids_offsets.first; i < illust_ids_offsets.second; i++) {
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ul.nodes.push_back(Element("li", {
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std::to_string(illust_ids[i])
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}));
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}
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return ul;
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}
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static inline size_t page_count(size_t items, size_t items_per_page) {
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size_t ret = items / items_per_page;
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if (items % items_per_page != 0) {
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ret++;
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}
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return ret;
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}
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static inline std::pair<size_t, size_t> page_to_offsets(size_t page, size_t items, size_t items_per_page) {
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size_t start_offset = page * items_per_page;
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size_t end_offset = start_offset + items_per_page;
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return {items > start_offset ? start_offset : items, items > end_offset ? end_offset : items};
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}
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