// ==UserScript==
// @name         好き嫌い検索
// @namespace    http://tampermonkey.net/
// @version      1.2
// @description  好き嫌い検索
// @match        https://suki-kira.com/people/result/*
// @grant        none
// @run-at       document-end
// ==/UserScript==

(function() {
    'use strict';

    ////////////////////////////////////////////
    // 1. UI生成
    ////////////////////////////////////////////
    const ui = document.createElement('div');
    Object.assign(ui.style, {
        position: 'fixed', top: '10px', right: '10px',
        padding: '8px', background: 'rgba(255,255,255,0.95)',
        border: '1px solid #ccc', zIndex: '9999'
    });
    ui.innerHTML = `
        <label>キーワード<br>
          <input id="skiKeyword" style="width:180px" placeholder='うどん "讃岐 稲庭"'/>
        </label><br>
        <label>開始レス数<br>
          <input id="skiStart" type="number" style="width:80px" />
        </label><br>
        <label>終了レス数<br>
          <input id="skiEnd"   type="number" style="width:80px" />
        </label><br>
        <button id="skiStartBtn">START</button>
        <div id="skiLog" style="margin-top:6px; font-size:12px; max-height:150px; overflow:auto;"></div>
        <div id="skiDownload" style="margin-top:6px;"></div>
    `;
    document.body.appendChild(ui);

    const logEl = ui.querySelector('#skiLog');
    function log(msg) {
        console.log('[SkiTool] ' + msg);
        const d = document.createElement('div');
        d.textContent = msg;
        logEl.appendChild(d);
        logEl.scrollTop = logEl.scrollHeight;
    }

    ////////////////////////////////////////////
    // 2. 検索キーワード解析 (AND/ORグループ生成)
    ////////////////////////////////////////////
    function parseSearchGroups(input) {
        const groups = [];
        // 1) " " で囲まれた部分を ORグループとして抜き出し
        const quoteRe = /"([^"]+)"/g;
        let m;
        const used = [];
        while ((m = quoteRe.exec(input))) {
            const orTerms = m[1]
                .split(/\s+/)
                .map(s => s.trim())
                .filter(Boolean);
            if (orTerms.length) {
                groups.push(orTerms);
                used.push(m[0]);
            }
        }
        // 2) 残りの文字列から単語を抜き、各々AND用グループ（1ワード OR）
        let remainder = input;
        used.forEach(tok => {
            remainder = remainder.replace(tok, ' ');
        });
        remainder
            .split(/\s+/)
            .map(s => s.trim())
            .filter(Boolean)
            .forEach(word => {
                groups.push([word]);
            });
        return groups;
    }

    ////////////////////////////////////////////
    // 3. START ボタン押したら
    ////////////////////////////////////////////
    ui.querySelector('#skiStartBtn').addEventListener('click', () => {
        const raw = ui.querySelector('#skiKeyword').value.trim();
        const startId = parseInt(ui.querySelector('#skiStart').value, 10);
        const endId   = parseInt(ui.querySelector('#skiEnd').value,   10);
        if (!raw || isNaN(startId) || isNaN(endId) || startId <= endId) {
            alert('キーワード／開始／終了 を正しく指定してね');
            return;
        }
        const groups = parseSearchGroups(raw);
        log(`検索条件: ${JSON.stringify(groups)}`);
        ui.querySelector('#skiStartBtn').disabled = true;
        runScan(groups, startId, endId)
            .catch(err => {
                console.error(err);
                log('エラー: ' + err.message);
                ui.querySelector('#skiStartBtn').disabled = false;
            });
    });

    ////////////////////////////////////////////
    // 4. レスの走査ループ
    ////////////////////////////////////////////
    async function runScan(groups, startId, endId) {
        const baseUrl = location.origin + location.pathname;
        let currentNxc = startId + 1;
        const seen = new Set();
        const results = [];

        while (true) {
            const url = `${baseUrl}?nxc=${currentNxc}`;
            log(`→ ページ取得 ${url}`);
            const html = await fetchPage(url);
            const doc = new DOMParser().parseFromString(html, 'text/html');
            const comments = Array.from(doc.querySelectorAll('.comment-container'));
            if (!comments.length) {
                log('警告: レス０件');
                break;
            }

            let minId = Infinity;
            for (const c of comments) {
                const id = parseInt(c.id, 10);
                if (isNaN(id)) continue;
                minId = Math.min(minId, id);
                if (id > startId || id < endId || seen.has(id)) continue;

                // 本文テキスト取得、小文字化
                const bodyEl = c.querySelector('.comment_body');
                const text = bodyEl
                    ? bodyEl.textContent.replace(/\u00A0/g,' ')
                    : '';
                const low = text.toLowerCase();

                // AND/ORグループ一致判定
                const ok = groups.every(group => {
                    return group.some(term => {
                        return low.includes(term.toLowerCase());
                    });
                });
                if (ok) {
                    seen.add(id);
                    results.push({ id, text });
                    log(`  Hit: ${id}`);
                }
            }

            if (minId <= endId) {
                log(`終了: ${minId} ≤ ${endId}`);
                break;
            }
            currentNxc = minId;
            await sleep(500);
        }

        makeDownload(results);
        ui.querySelector('#skiStartBtn').disabled = false;
    }

    ////////////////////////////////////////////
    // 5. ページ取得
    ////////////////////////////////////////////
    async function fetchPage(url) {
        const res = await fetch(url, {
            method: 'GET',
            credentials: 'include',
            headers: { 'Referer': location.href }
        });
        if (!res.ok) throw new Error(`HTTP ${res.status}`);
        return await res.text();
    }

    function sleep(ms) {
        return new Promise(r => setTimeout(r, ms));
    }

    ////////////////////////////////////////////
    // 6. テキスト出力
    ////////////////////////////////////////////
    function makeDownload(items) {
        if (!items.length) {
            log('該当レスがないよ');
        }
        let txt = '';
        items.sort((a,b) => b.id - a.id);
        for (const {id, text} of items) {
            txt += `${id}:\n${text}\n\n`;
        }
        const blob = new Blob([txt], { type: 'text/plain' });
        const url  = URL.createObjectURL(blob);
        const a    = document.createElement('a');
        a.href        = url;
        a.download    = `sukikira-${Date.now()}.txt`;
        a.textContent = `結果をダウンロード (${items.length} 件)`;
        a.style.display = 'block';
        ui.querySelector('#skiDownload').appendChild(a);
        log('ファイル準備完了');
    }

})();