import { useEffect, useRef } from "react";
import { useVerge } from "@/hooks/use-verge";
import { Box, Button, Grid } from "@mui/material";
import {
  DndContext,
  closestCenter,
  KeyboardSensor,
  PointerSensor,
  useSensor,
  useSensors,
  DragEndEvent,
} from "@dnd-kit/core";
import {
  SortableContext,
  sortableKeyboardCoordinates,
} from "@dnd-kit/sortable";

import { useTranslation } from "react-i18next";
import { BasePage } from "@/components/base";
import { TestViewer, TestViewerRef } from "@/components/test/test-viewer";
import { TestItem } from "@/components/test/test-item";
import { emit } from "@tauri-apps/api/event";
import { nanoid } from "nanoid";

const TestPage = () => {
  const { t } = useTranslation();
  const sensors = useSensors(
    useSensor(PointerSensor),
    useSensor(KeyboardSensor, {
      coordinateGetter: sortableKeyboardCoordinates,
    })
  );
  const { verge, mutateVerge, patchVerge } = useVerge();

  // test list
  const testList = verge?.test_list ?? [
    {
      uid: nanoid(),
      name: "Apple",
      url: "https://www.apple.com",
      icon: "https://www.apple.com/favicon.ico",
    },
    {
      uid: nanoid(),
      name: "GitHub",
      url: "https://www.github.com",
      icon: `<svg width="98" height="96" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="M48.854 0C21.839 0 0 22 0 49.217c0 21.756 13.993 40.172 33.405 46.69 2.427.49 3.316-1.059 3.316-2.362 0-1.141-.08-5.052-.08-9.127-13.59 2.934-16.42-5.867-16.42-5.867-2.184-5.704-5.42-7.17-5.42-7.17-4.448-3.015.324-3.015.324-3.015 4.934.326 7.523 5.052 7.523 5.052 4.367 7.496 11.404 5.378 14.235 4.074.404-3.178 1.699-5.378 3.074-6.6-10.839-1.141-22.243-5.378-22.243-24.283 0-5.378 1.94-9.778 5.014-13.2-.485-1.222-2.184-6.275.486-13.038 0 0 4.125-1.304 13.426 5.052a46.97 46.97 0 0 1 12.214-1.63c4.125 0 8.33.571 12.213 1.63 9.302-6.356 13.427-5.052 13.427-5.052 2.67 6.763.97 11.816.485 13.038 3.155 3.422 5.015 7.822 5.015 13.2 0 18.905-11.404 23.06-22.324 24.283 1.78 1.548 3.316 4.481 3.316 9.126 0 6.6-.08 11.897-.08 13.526 0 1.304.89 2.853 3.316 2.364 19.412-6.52 33.405-24.935 33.405-46.691C97.707 22 75.788 0 48.854 0z" fill="#000000"/></svg>`,
    },
    {
      uid: nanoid(),
      name: "Google",
      url: "https://www.google.com",
      icon: `<svg enable-background="new 0 0 48 48" height="48" viewBox="0 0 48 48" width="48" xmlns="http://www.w3.org/2000/svg"><path d="m43.611 20.083h-1.611v-.083h-18v8h11.303c-1.649 4.657-6.08 8-11.303 8-6.627 0-12-5.373-12-12s5.373-12 12-12c3.059 0 5.842 1.154 7.961 3.039l5.657-5.657c-3.572-3.329-8.35-5.382-13.618-5.382-11.045 0-20 8.955-20 20s8.955 20 20 20 20-8.955 20-20c0-1.341-.138-2.65-.389-3.917z" fill="#ffc107"/><path d="m6.306 14.691 6.571 4.819c1.778-4.402 6.084-7.51 11.123-7.51 3.059 0 5.842 1.154 7.961 3.039l5.657-5.657c-3.572-3.329-8.35-5.382-13.618-5.382-7.682 0-14.344 4.337-17.694 10.691z" fill="#ff3d00"/><path d="m24 44c5.166 0 9.86-1.977 13.409-5.192l-6.19-5.238c-2.008 1.521-4.504 2.43-7.219 2.43-5.202 0-9.619-3.317-11.283-7.946l-6.522 5.025c3.31 6.477 10.032 10.921 17.805 10.921z" fill="#4caf50"/><path d="m43.611 20.083h-1.611v-.083h-18v8h11.303c-.792 2.237-2.231 4.166-4.087 5.571.001-.001.002-.001.003-.002l6.19 5.238c-.438.398 6.591-4.807 6.591-14.807 0-1.341-.138-2.65-.389-3.917z" fill="#1976d2"/></svg>`,
    },
  ];

  const onTestListItemChange = (
    uid: string,
    patch?: Partial<IVergeTestItem>
  ) => {
    if (patch) {
      const newList = testList.map((x) => {
        if (x.uid === uid) {
          return { ...x, ...patch };
        }
        return x;
      });
      mutateVerge({ ...verge, test_list: newList }, false);
    } else {
      mutateVerge();
    }
  };

  const onDeleteTestListItem = (uid: string) => {
    const newList = testList.filter((x) => x.uid !== uid);
    patchVerge({ test_list: newList });
    mutateVerge({ ...verge, test_list: newList }, false);
  };

  const reorder = (list: any[], startIndex: number, endIndex: number) => {
    const result = Array.from(list);
    const [removed] = result.splice(startIndex, 1);
    result.splice(endIndex, 0, removed);
    return result;
  };

  const onDragEnd = async (event: DragEndEvent) => {
    const { active, over } = event;
    if (over) {
      if (active.id !== over.id) {
        let old_index = testList.findIndex((x) => x.uid === active.id);
        let new_index = testList.findIndex((x) => x.uid === over.id);
        if (old_index < 0 || new_index < 0) {
          return;
        }
        let newList = reorder(testList, old_index, new_index);
        await mutateVerge({ ...verge, test_list: newList }, false);
        await patchVerge({ test_list: newList });
      }
    }
  };

  useEffect(() => {
    if (!verge) return;
    if (!verge?.test_list) {
      patchVerge({ test_list: testList });
    }
  }, [verge]);

  const viewerRef = useRef<TestViewerRef>(null);

  return (
    <BasePage
      title={t("Test")}
      header={
        <Box sx={{ display: "flex", alignItems: "center", gap: 1 }}>
          <Button
            variant="contained"
            size="small"
            onClick={() => emit("verge://test-all")}
          >
            {t("Test All")}
          </Button>
          <Button
            variant="contained"
            size="small"
            onClick={() => viewerRef.current?.create()}
          >
            {t("New")}
          </Button>
        </Box>
      }
    >
      <DndContext
        sensors={sensors}
        collisionDetection={closestCenter}
        onDragEnd={onDragEnd}
      >
        <Box sx={{ mb: 4.5 }}>
          <Grid container spacing={{ xs: 1, lg: 1 }}>
            <SortableContext
              items={testList.map((x) => {
                return x.uid;
              })}
            >
              {testList.map((item) => (
                <Grid item xs={6} sm={4} md={3} lg={2} key={item.uid}>
                  <TestItem
                    id={item.uid}
                    itemData={item}
                    onEdit={() => viewerRef.current?.edit(item)}
                    onDelete={onDeleteTestListItem}
                  />
                </Grid>
              ))}
            </SortableContext>
          </Grid>
        </Box>
      </DndContext>
      <TestViewer ref={viewerRef} onChange={onTestListItemChange} />
    </BasePage>
  );
};

export default TestPage;
