/**
 * SX Test Runner — drives tests in an iframe, reports results.
 * Updates [data-test] elements in-place with pass/fail icons.
 * Expects: #run-btn, #test-status, #test-summary, #test-iframe, [data-test]
 */
(function() {
  "use strict";

  var TESTS = [
    { name: "click-to-load", actions: [
      { type: "click", selector: "button[hx-get]" },
      { type: "wait", ms: 2000 },
      { type: "assert-text", selector: "#click-result", contains: "Content loaded!" }
    ]},
    { name: "click-no-oob-leak", actions: [
      { type: "click", selector: "button[hx-get]" },
      { type: "wait", ms: 2000 },
      { type: "assert-text", selector: "#click-result", notContains: "defcomp" }
    ]},
    { name: "search-debounce", actions: [
      { type: "fill", selector: "input[hx-get]", value: "hx-get" },
      { type: "wait", ms: 1500 },
      { type: "assert-text", selector: "#search-results", contains: "GET request" }
    ]},
    { name: "search-no-results", actions: [
      { type: "fill", selector: "input[hx-get]", value: "xyznonexistent" },
      { type: "wait", ms: 1500 },
      { type: "assert-text", selector: "#search-results", contains: "No results" }
    ]},
    { name: "tab-overview", actions: [
      { type: "click", selector: "button[hx-get*='tab=overview']" },
      { type: "wait", ms: 2000 },
      { type: "assert-text", selector: "#htmx-tab-content", contains: "htmx gives you access" }
    ]},
    { name: "tab-features", actions: [
      { type: "click", selector: "button[hx-get*='tab=features']" },
      { type: "wait", ms: 2000 },
      { type: "assert-text", selector: "#htmx-tab-content", contains: "Any element" }
    ]},
    { name: "append-item", actions: [
      { type: "click", selector: "button[hx-post*='api.append']" },
      { type: "wait", ms: 2000 },
      { type: "assert-count", selector: "#item-list > *", gte: 1 }
    ]},
    { name: "form-submit", actions: [
      { type: "fill", selector: "form[hx-post] input[name='name']", value: "Alice" },
      { type: "fill", selector: "form[hx-post] input[name='email']", value: "alice@test.com" },
      { type: "click", selector: "form[hx-post] button[type='submit']" },
      { type: "wait", ms: 2000 },
      { type: "assert-text", selector: "#form-result", contains: "Alice" }
    ]}
  ];

  if (window.__sxTests) TESTS = window.__sxTests;

  var runBtn, statusEl, summaryEl, iframe;

  function init() {
    runBtn = document.getElementById("run-btn");
    statusEl = document.getElementById("test-status");
    summaryEl = document.getElementById("test-summary");
    iframe = document.getElementById("test-iframe");
    if (runBtn) {
      console.log("[sx-test] Runner initialized, " + TESTS.length + " tests");
      runBtn.addEventListener("click", function() {
        console.log("[sx-test] Run clicked");
        runAll();
      });
    } else {
      console.warn("[sx-test] #run-btn not found");
    }
  }

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

  function waitForReady(doc, timeout) {
    return new Promise(function(resolve, reject) {
      var start = Date.now();
      (function check() {
        try { if (doc.documentElement.getAttribute("data-sx-ready") === "true") return resolve(); } catch(e) {}
        if (Date.now() - start > timeout) return reject(new Error("Timeout"));
        setTimeout(check, 200);
      })();
    });
  }

  function reloadIframe() {
    return new Promise(function(resolve) {
      iframe.addEventListener("load", function onLoad() {
        iframe.removeEventListener("load", onLoad);
        resolve();
      });
      iframe.contentWindow.location.reload();
    });
  }

  function updateTestItem(name, state, error) {
    var item = document.querySelector('[data-test="' + name + '"]');
    if (!item) return;
    var icon = item.querySelector('[data-role="test-icon"]');
    if (!icon) return;

    if (state === "running") {
      icon.textContent = "⟳";
      icon.style.color = "#7c3aed";
      item.style.borderColor = "#c4b5fd";
    } else if (state === "pass") {
      icon.textContent = "✓";
      icon.style.color = "#16a34a";
      item.style.borderColor = "#bbf7d0";
      item.style.backgroundColor = "#f0fdf4";
    } else if (state === "fail") {
      icon.textContent = "✗";
      icon.style.color = "#dc2626";
      item.style.borderColor = "#fecaca";
      item.style.backgroundColor = "#fef2f2";
      if (error) {
        var errEl = item.querySelector('[data-role="test-error"]');
        if (!errEl) {
          errEl = document.createElement("div");
          errEl.setAttribute("data-role", "test-error");
          errEl.style.cssText = "padding:8px 16px;font-size:12px;color:#dc2626;border-top:1px solid #fecaca;background:#fef2f2";
          item.querySelector("summary").after(errEl);
        }
        errEl.textContent = error;
      }
    }
  }

  function resetAllItems() {
    var items = document.querySelectorAll("[data-test]");
    for (var i = 0; i < items.length; i++) {
      var icon = items[i].querySelector('[data-role="test-icon"]');
      if (icon) { icon.textContent = "○"; icon.style.color = ""; }
      items[i].style.borderColor = "";
      items[i].style.backgroundColor = "";
      var err = items[i].querySelector('[data-role="test-error"]');
      if (err) err.remove();
    }
  }

  async function runOneTest(test) {
    var doc = iframe.contentDocument;
    for (var j = 0; j < test.actions.length; j++) {
      var a = test.actions[j];
      if (a.type === "click") {
        var el = doc.querySelector(a.selector);
        if (!el) throw new Error("Not found: " + a.selector);
        el.click();
      } else if (a.type === "fill") {
        var el = doc.querySelector(a.selector);
        if (!el) throw new Error("Not found: " + a.selector);
        el.focus();
        el.value = "";
        el.value = a.value;
        el.dispatchEvent(new Event("input", { bubbles: true }));
        el.dispatchEvent(new Event("change", { bubbles: true }));
      } else if (a.type === "wait") {
        await sleep(a.ms);
      } else if (a.type === "assert-text") {
        var el = doc.querySelector(a.selector);
        if (!el) throw new Error("Not found: " + a.selector);
        var txt = el.textContent || "";
        if (a.contains && txt.indexOf(a.contains) === -1)
          throw new Error("Expected '" + a.contains + "' in '" + txt.substring(0, 60) + "'");
        if (a.notContains && txt.indexOf(a.notContains) !== -1)
          throw new Error("Unexpected '" + a.notContains + "'");
      } else if (a.type === "assert-count") {
        var els = doc.querySelectorAll(a.selector);
        if (a.gte !== undefined && els.length < a.gte)
          throw new Error("Expected >=" + a.gte + ", got " + els.length);
      }
    }
  }

  async function runAll() {
    resetAllItems();
    summaryEl.innerHTML = "";
    runBtn.disabled = true;
    runBtn.style.opacity = "0.5";
    var passed = 0, failed = 0;

    for (var i = 0; i < TESTS.length; i++) {
      var test = TESTS[i];
      statusEl.textContent = test.name + " (" + (i+1) + "/" + TESTS.length + ")";
      updateTestItem(test.name, "running");

      if (i > 0) await reloadIframe();

      try {
        await waitForReady(iframe.contentDocument, 15000);
        await sleep(500);
      } catch(e) {
        updateTestItem(test.name, "fail", "Page load timeout");
        failed++;
        continue;
      }

      try {
        await runOneTest(test);
        updateTestItem(test.name, "pass");
        passed++;
      } catch(err) {
        updateTestItem(test.name, "fail", err.message);
        failed++;
      }
    }

    runBtn.disabled = false;
    runBtn.style.opacity = "1";
    statusEl.textContent = "Done";
    var total = passed + failed;
    summaryEl.innerHTML = '<div style="padding:12px;border-radius:8px;font-weight:600;' +
      (failed === 0 ? 'background:#f0fdf4;color:#166534' : 'background:#fef2f2;color:#991b1b') +
      '">' + passed + '/' + total + ' tests passed</div>';
  }

  if (document.readyState === "loading") {
    document.addEventListener("DOMContentLoaded", init);
  } else {
    init();
  }
})();