/**
 * 复盘表单 AJAX 保存:避免整页刷新卡顿;配合 FormSubmitGuard 即时反馈.
 */
(function (global) {
  "use strict";

  function $(id) {
    return document.getElementById(id);
  }

  function toast(msg) {
    if (!msg) return;
    try {
      if (global.InstanceTheme && typeof InstanceTheme.toast === "function") {
        InstanceTheme.toast(msg);
        return;
      }
    } catch (_) {}
    try {
      alert(msg);
    } catch (_) {}
  }

  function refreshLists() {
    if (typeof global.loadJournals === "function") {
      try {
        global.loadJournals();
      } catch (_) {}
    } else if (global.RecordsReviewPage && typeof RecordsReviewPage.loadJournals === "function") {
      try {
        RecordsReviewPage.loadJournals();
      } catch (_) {}
    }
  }

  function resetJournalForm(form) {
    if (!form) return;
    form.reset();
    ["risk-amount-hint", "entry-price-hint", "stop-loss-hint", "exit-price-hint", "direction-hint"].forEach(
      function (id) {
        var el = $(id);
        if (el) el.value = "";
      }
    );
    if (global.JournalUploadSlots && typeof JournalUploadSlots.reset === "function") {
      JournalUploadSlots.reset(form);
    }
    if (typeof global.syncEarlyExitNoteRequired === "function") {
      try {
        global.syncEarlyExitNoteRequired();
      } catch (_) {}
    }
    if (global.RecordsReviewPage && typeof RecordsReviewPage.hideJournalCard === "function") {
      try {
        RecordsReviewPage.hideJournalCard();
      } catch (_) {}
    }
  }

  function onSuccess(form, data) {
    var msg = (data && data.msg) || "交易复盘记录已保存";
    toast(msg);
    resetJournalForm(form);
    refreshLists();
    if (data && data.chart_pending) {
      // K 线后台生成,数秒后再刷一次列表拿缩略图
      setTimeout(refreshLists, 4000);
      setTimeout(refreshLists, 12000);
    }
  }

  function bind(form) {
    if (!form || form.dataset.journalAjaxBound === "1") return;
    form.dataset.journalAjaxBound = "1";
    form.addEventListener("submit", function (ev) {
      if (typeof global.validateJournalEntryReason === "function") {
        if (!global.validateJournalEntryReason()) {
          ev.preventDefault();
          return;
        }
      }
      ev.preventDefault();
      if (global.FormSubmitGuard && FormSubmitGuard.isLocked(form)) return;
      if (global.FormSubmitGuard) FormSubmitGuard.lock(form, "保存中…");

      var fd = new FormData(form);
      fd.set("ajax", "1");
      var action = form.getAttribute("action") || "/add_journal";

      fetch(action, {
        method: "POST",
        body: fd,
        credentials: "same-origin",
        headers: {
          "X-Requested-With": "XMLHttpRequest",
          Accept: "application/json",
        },
      })
        .then(function (res) {
          var ct = (res.headers.get("content-type") || "").toLowerCase();
          if (ct.indexOf("application/json") >= 0) {
            return res.json().then(function (data) {
              return { ok: res.ok, data: data, redirected: false };
            });
          }
          // 旧后端未返回 JSON 时走整页逻辑
          if (res.redirected || res.ok) {
            global.location.reload();
            return { ok: true, data: null, redirected: true };
          }
          throw new Error("save failed");
        })
        .then(function (result) {
          if (result.redirected) return;
          if (!result.ok || !result.data || result.data.ok === false) {
            var err =
              (result.data && (result.data.msg || result.data.error)) || "保存失败";
            throw new Error(err);
          }
          onSuccess(form, result.data);
        })
        .catch(function (err) {
          toast((err && err.message) || "保存失败,请稍后重试");
        })
        .finally(function () {
          if (global.FormSubmitGuard) FormSubmitGuard.unlock(form);
        });
    });
  }

  function init() {
    bind($("journal-form"));
  }

  global.JournalFormSave = { init: init, bind: bind };

  if (document.readyState === "loading") {
    document.addEventListener("DOMContentLoaded", init);
  } else {
    init();
  }
})(typeof window !== "undefined" ? window : globalThis);