import { ResearchList, ResearchDetail } from "./ResearchList";
import { ResearchSelect } from "./ResearchSelect";
import { useEffect, useState } from "react";
import {
  Banner,
  Button,
  Checkbox,
  Input,
  TextArea,
} from "@douyinfe/semi-ui-19";
import { api, patch, post, formatTime } from "../api";
import "./workspace.css";
type Operator = {
  name: string;
  category: string;
  description: string;
  definition: string;
  example: string;
  parameters: unknown;
  scope: string[];
  local: { note: string; favorite: boolean; version: number };
};
type Results = {
  items: Operator[];
  total: number;
  categories: string[];
  fetched_at: string | null;
};
export function OperatorsPage({ active }: { active: boolean }) {
  const [query, setQuery] = useState("");
  const [category, setCategory] = useState("");
  const [favorite, setFavorite] = useState(false);
  const [offset, setOffset] = useState(0);
  const [result, setResult] = useState<Results>({
    items: [],
    total: 0,
    categories: [],
    fetched_at: null,
  });
  const [selected, setSelected] = useState<Operator | null>(null);
  const [error, setError] = useState("");
  const [busy, setBusy] = useState(false);
  async function load() {
    setResult(
      await api(
        `/catalog/operators?${new URLSearchParams({ q: query, category, favorite: String(favorite), limit: "25", offset: String(offset) })}`,
      ),
    );
  }
  async function task(operation: () => Promise<void>) {
    setBusy(true);
    setError("");
    try {
      await operation();
    } catch (error) {
      setError((error as Error).message);
    } finally {
      setBusy(false);
    }
  }
  useEffect(() => {
    if (active) void task(load);
  }, [active, query, category, favorite, offset]);
  return (
    <div className="research-workspace research-list-page">
      {error && !selected && <Banner type="danger" description={error} />}
      <ResearchList
        resetKey={JSON.stringify([query, category, favorite, offset])}
        label="算子库"
        filters={
          <div className="research-toolbar">
            <Input
              aria-label="搜索算子"
              placeholder="名称、参数或描述"
              value={query}
              onChange={(value) => {
                setQuery(value);
                setOffset(0);
              }}
            />
            <ResearchSelect
              label="算子分类"
              value={category}
              optionList={[
                { value: "", label: "全部分类" },
                ...result.categories.map((value) => ({ value, label: value })),
              ]}
              onChange={(value) => {
                setCategory(value as string);
                setOffset(0);
              }}
            />
            <Checkbox
              checked={favorite}
              onChange={(event) => {
                setFavorite(!!event.target.checked);
                setOffset(0);
              }}
            >
              只看收藏
            </Checkbox>
          </div>
        }
        actions={
          <>
            <Button
              theme="solid"
              loading={busy}
              onClick={() =>
                void task(async () => {
                  await post("/catalog/operators/refresh");
                  await load();
                })
              }
            >
              同步算子目录
            </Button>
            <span className="muted">
              同步时间：{formatTime(result.fetched_at)}
            </span>
          </>
        }
        pagination={
          <div className="research-toolbar">
            <span>共 {result.total} 个</span>
            <Button
              disabled={!offset}
              onClick={() => setOffset(Math.max(0, offset - 25))}
            >
              上一页
            </Button>
            <Button
              disabled={offset + 25 >= result.total}
              onClick={() => setOffset(offset + 25)}
            >
              下一页
            </Button>
          </div>
        }
      >
        <table className="research-table">
          <thead>
            <tr>
              <th>算子</th>
              <th>分类</th>
              <th>定义</th>
            </tr>
          </thead>
          <tbody>
            {result.items.map((item) => (
              <tr key={item.name}>
                <td>
                  <Button theme="borderless" onClick={() => setSelected(item)}>
                    {item.local.favorite ? "已收藏 · " : ""}
                    {item.name}
                  </Button>
                </td>
                <td>{item.category}</td>
                <td>
                  <code>{item.definition}</code>
                </td>
              </tr>
            ))}
          </tbody>
        </table>
        {!result.items.length && (
          <p>暂无算子。连接平台并同步目录，或调整筛选条件。</p>
        )}
      </ResearchList>
      <ResearchDetail
        title={selected?.name || "算子详情"}
        visible={active && !!selected}
        onClose={() => setSelected(null)}
      >
        {error && <Banner type="danger" description={error} />}
        {selected && (
          <section className="research-card">
            <h3>{selected.name}</h3>
            <p>{selected.description}</p>
            <code>{selected.definition}</code>
            {selected.example && <pre>{selected.example}</pre>}
            {!!selected.parameters && (
              <pre>{JSON.stringify(selected.parameters, null, 2)}</pre>
            )}
            <p>适用：{selected.scope?.join("、") || "平台未提供"}</p>
            <label>
              研究备注
              <TextArea
                aria-label="算子研究备注"
                value={selected.local.note}
                onChange={(note) =>
                  setSelected({
                    ...selected,
                    local: { ...selected.local, note },
                  })
                }
                autosize={{ minRows: 4, maxRows: 8 }}
              />
            </label>
            <Checkbox
              checked={selected.local.favorite}
              onChange={(event) =>
                setSelected({
                  ...selected,
                  local: {
                    ...selected.local,
                    favorite: !!event.target.checked,
                  },
                })
              }
            >
              收藏算子
            </Checkbox>
            <div className="research-toolbar">
              <Button
                disabled={busy}
                onClick={() =>
                  void task(async () => {
                    const result = await patch<{ version: number }>(
                      `/catalog/operators/${encodeURIComponent(selected.name)}/research`,
                      selected.local,
                    );
                    setSelected({
                      ...selected,
                      local: { ...selected.local, version: result.version },
                    });
                    await load();
                  })
                }
              >
                保存本地备注
              </Button>
            </div>
          </section>
        )}
      </ResearchDetail>
    </div>
  );
}