import React, {SVGProps} from "react";
import {
  Table,
  TableHeader,
  TableColumn,
  TableBody,
  TableRow,
  TableCell,
  Input,
  Button,
  DropdownTrigger,
  Dropdown,
  DropdownMenu,
  DropdownItem,
  Chip,
  User,
  Pagination,
  Selection,
  ChipProps,
  SortDescriptor,
} from "@heroui/react";

export type IconSvgProps = SVGProps<SVGSVGElement> & {
  size?: number;
};

export function capitalize(s: string) {
  return s ? s.charAt(0).toUpperCase() + s.slice(1).toLowerCase() : "";
}

export const PlusIcon = ({size = 24, width, height, ...props}: IconSvgProps) => {
  return (
    <svg
      aria-hidden="true"
      fill="none"
      focusable="false"
      height={size || height}
      role="presentation"
      viewBox="0 0 24 24"
      width={size || width}
      {...props}
    >
      <g
        fill="none"
        stroke="currentColor"
        strokeLinecap="round"
        strokeLinejoin="round"
        strokeWidth={1.5}
      >
        <path d="M6 12h12" />
        <path d="M12 18V6" />
      </g>
    </svg>
  );
};

export const VerticalDotsIcon = ({size = 24, width, height, ...props}: IconSvgProps) => {
  return (
    <svg
      aria-hidden="true"
      fill="none"
      focusable="false"
      height={size || height}
      role="presentation"
      viewBox="0 0 24 24"
      width={size || width}
      {...props}
    >
      <path
        d="M12 10c-1.1 0-2 .9-2 2s.9 2 2 2 2-.9 2-2-.9-2-2-2zm0-6c-1.1 0-2 .9-2 2s.9 2 2 2 2-.9 2-2-.9-2-2-2zm0 12c-1.1 0-2 .9-2 2s.9 2 2 2 2-.9 2-2-.9-2-2-2z"
        fill="currentColor"
      />
    </svg>
  );
};

export const SearchIcon = (props: IconSvgProps) => {
  return (
    <svg
      aria-hidden="true"
      fill="none"
      focusable="false"
      height="1em"
      role="presentation"
      viewBox="0 0 24 24"
      width="1em"
      {...props}
    >
      <path
        d="M11.5 21C16.7467 21 21 16.7467 21 11.5C21 6.25329 16.7467 2 11.5 2C6.25329 2 2 6.25329 2 11.5C2 16.7467 6.25329 21 11.5 21Z"
        stroke="currentColor"
        strokeLinecap="round"
        strokeLinejoin="round"
        strokeWidth="2"
      />
      <path
        d="M22 22L20 20"
        stroke="currentColor"
        strokeLinecap="round"
        strokeLinejoin="round"
        strokeWidth="2"
      />
    </svg>
  );
};

export const ChevronDownIcon = ({strokeWidth = 1.5, ...otherProps}: IconSvgProps) => {
  return (
    <svg
      aria-hidden="true"
      fill="none"
      focusable="false"
      height="1em"
      role="presentation"
      viewBox="0 0 24 24"
      width="1em"
      {...otherProps}
    >
      <path
        d="m19.92 8.95-6.52 6.52c-.77.77-2.03.77-2.8 0L4.08 8.95"
        stroke="currentColor"
        strokeLinecap="round"
        strokeLinejoin="round"
        strokeMiterlimit={10}
        strokeWidth={strokeWidth}
      />
    </svg>
  );
};

export const columns = [
  {name: "ID", uid: "id", sortable: true},
  {name: "NAME", uid: "name", sortable: true},
  {name: "AGE", uid: "age", sortable: true},
  {name: "ROLE", uid: "role", sortable: true},
  {name: "TEAM", uid: "team"},
  {name: "EMAIL", uid: "email"},
  {name: "STATUS", uid: "status", sortable: true},
  {name: "ACTIONS", uid: "actions"},
];

export const statusOptions = [
  {name: "Active", uid: "active"},
  {name: "Paused", uid: "paused"},
  {name: "Vacation", uid: "vacation"},
];

export const users = [
  {
    id: 1,
    name: "Tony Reichert",
    role: "CEO",
    team: "Management",
    status: "active",
    age: "29",
    avatar: "https://i.pravatar.cc/150?u=a042581f4e29026024d",
    email: "tony.reichert@example.com",
  },
  {
    id: 2,
    name: "Zoey Lang",
    role: "Tech Lead",
    team: "Development",
    status: "paused",
    age: "25",
    avatar: "https://i.pravatar.cc/150?u=a042581f4e29026704d",
    email: "zoey.lang@example.com",
  },
  {
    id: 3,
    name: "Jane Fisher",
    role: "Sr. Dev",
    team: "Development",
    status: "active",
    age: "22",
    avatar: "https://i.pravatar.cc/150?u=a04258114e29026702d",
    email: "jane.fisher@example.com",
  },
  {
    id: 4,
    name: "William Howard",
    role: "C.M.",
    team: "Marketing",
    status: "vacation",
    age: "28",
    avatar: "https://i.pravatar.cc/150?u=a048581f4e29026701d",
    email: "william.howard@example.com",
  },
  {
    id: 5,
    name: "Kristen Copper",
    role: "S. Manager",
    team: "Sales",
    status: "active",
    age: "24",
    avatar: "https://i.pravatar.cc/150?u=a092581d4ef9026700d",
    email: "kristen.cooper@example.com",
  },
  {
    id: 6,
    name: "Brian Kim",
    role: "P. Manager",
    team: "Management",
    age: "29",
    avatar: "https://i.pravatar.cc/150?u=a042581f4e29026024d",
    email: "brian.kim@example.com",
    status: "Active",
  },
  {
    id: 7,
    name: "Michael Hunt",
    role: "Designer",
    team: "Design",
    status: "paused",
    age: "27",
    avatar: "https://i.pravatar.cc/150?u=a042581f4e29027007d",
    email: "michael.hunt@example.com",
  },
  {
    id: 8,
    name: "Samantha Brooks",
    role: "HR Manager",
    team: "HR",
    status: "active",
    age: "31",
    avatar: "https://i.pravatar.cc/150?u=a042581f4e27027008d",
    email: "samantha.brooks@example.com",
  },
  {
    id: 9,
    name: "Frank Harrison",
    role: "F. Manager",
    team: "Finance",
    status: "vacation",
    age: "33",
    avatar: "https://i.pravatar.cc/150?img=4",
    email: "frank.harrison@example.com",
  },
  {
    id: 10,
    name: "Emma Adams",
    role: "Ops Manager",
    team: "Operations",
    status: "active",
    age: "35",
    avatar: "https://i.pravatar.cc/150?img=5",
    email: "emma.adams@example.com",
  },
  {
    id: 11,
    name: "Brandon Stevens",
    role: "Jr. Dev",
    team: "Development",
    status: "active",
    age: "22",
    avatar: "https://i.pravatar.cc/150?img=8",
    email: "brandon.stevens@example.com",
  },
  {
    id: 12,
    name: "Megan Richards",
    role: "P. Manager",
    team: "Product",
    status: "paused",
    age: "28",
    avatar: "https://i.pravatar.cc/150?img=10",
    email: "megan.richards@example.com",
  },
  {
    id: 13,
    name: "Oliver Scott",
    role: "S. Manager",
    team: "Security",
    status: "active",
    age: "37",
    avatar: "https://i.pravatar.cc/150?img=12",
    email: "oliver.scott@example.com",
  },
  {
    id: 14,
    name: "Grace Allen",
    role: "M. Specialist",
    team: "Marketing",
    status: "active",
    age: "30",
    avatar: "https://i.pravatar.cc/150?img=16",
    email: "grace.allen@example.com",
  },
  {
    id: 15,
    name: "Noah Carter",
    role: "IT Specialist",
    team: "I. Technology",
    status: "paused",
    age: "31",
    avatar: "https://i.pravatar.cc/150?img=15",
    email: "noah.carter@example.com",
  },
  {
    id: 16,
    name: "Ava Perez",
    role: "Manager",
    team: "Sales",
    status: "active",
    age: "29",
    avatar: "https://i.pravatar.cc/150?img=20",
    email: "ava.perez@example.com",
  },
  {
    id: 17,
    name: "Liam Johnson",
    role: "Data Analyst",
    team: "Analysis",
    status: "active",
    age: "28",
    avatar: "https://i.pravatar.cc/150?img=33",
    email: "liam.johnson@example.com",
  },
  {
    id: 18,
    name: "Sophia Taylor",
    role: "QA Analyst",
    team: "Testing",
    status: "active",
    age: "27",
    avatar: "https://i.pravatar.cc/150?img=29",
    email: "sophia.taylor@example.com",
  },
  {
    id: 19,
    name: "Lucas Harris",
    role: "Administrator",
    team: "Information Technology",
    status: "paused",
    age: "32",
    avatar: "https://i.pravatar.cc/150?img=50",
    email: "lucas.harris@example.com",
  },
  {
    id: 20,
    name: "Mia Robinson",
    role: "Coordinator",
    team: "Operations",
    status: "active",
    age: "26",
    avatar: "https://i.pravatar.cc/150?img=45",
    email: "mia.robinson@example.com",
  },
];

const statusColorMap: Record<string, ChipProps["color"]> = {
  active: "success",
  paused: "danger",
  vacation: "warning",
};

const INITIAL_VISIBLE_COLUMNS = ["name", "role", "status", "actions"];

type User = (typeof users)[0];

export default function App() {
  const [filterValue, setFilterValue] = React.useState("");
  const [selectedKeys, setSelectedKeys] = React.useState<Selection>(new Set([]));
  const [visibleColumns, setVisibleColumns] = React.useState<Selection>(
    new Set(INITIAL_VISIBLE_COLUMNS),
  );
  const [statusFilter, setStatusFilter] = React.useState<Selection>("all");
  const [rowsPerPage, setRowsPerPage] = React.useState(5);
  const [sortDescriptor, setSortDescriptor] = React.useState<SortDescriptor>({
    column: "age",
    direction: "ascending",
  });

  const [page, setPage] = React.useState(1);

  const hasSearchFilter = Boolean(filterValue);

  const headerColumns = React.useMemo(() => {
    if (visibleColumns === "all") return columns;

    return columns.filter((column) => Array.from(visibleColumns).includes(column.uid));
  }, [visibleColumns]);

  const filteredItems = React.useMemo(() => {
    let filteredUsers = [...users];

    if (hasSearchFilter) {
      filteredUsers = filteredUsers.filter((user) =>
        user.name.toLowerCase().includes(filterValue.toLowerCase()),
      );
    }
    if (statusFilter !== "all" && Array.from(statusFilter).length !== statusOptions.length) {
      filteredUsers = filteredUsers.filter((user) =>
        Array.from(statusFilter).includes(user.status),
      );
    }

    return filteredUsers;
  }, [users, filterValue, statusFilter]);

  const pages = Math.ceil(filteredItems.length / rowsPerPage) || 1;

  const items = React.useMemo(() => {
    const start = (page - 1) * rowsPerPage;
    const end = start + rowsPerPage;

    return filteredItems.slice(start, end);
  }, [page, filteredItems, rowsPerPage]);

  const sortedItems = React.useMemo(() => {
    return [...items].sort((a: User, b: User) => {
      const first = a[sortDescriptor.column as keyof User] as number;
      const second = b[sortDescriptor.column as keyof User] as number;
      const cmp = first < second ? -1 : first > second ? 1 : 0;

      return sortDescriptor.direction === "descending" ? -cmp : cmp;
    });
  }, [sortDescriptor, items]);

  const renderCell = React.useCallback((user: User, columnKey: React.Key) => {
    const cellValue = user[columnKey as keyof User];

    switch (columnKey) {
      case "name":
        return (
          <User
            avatarProps={{radius: "lg", src: user.avatar}}
            description={user.email}
            name={cellValue}
          >
            {user.email}
          </User>
        );
      case "role":
        return (
          <div className="flex flex-col">
            <p className="text-bold text-small capitalize">{cellValue}</p>
            <p className="text-bold text-tiny capitalize text-default-400">{user.team}</p>
          </div>
        );
      case "status":
        return (
          <Chip className="capitalize" color={statusColorMap[user.status]} size="sm" variant="flat">
            {cellValue}
          </Chip>
        );
      case "actions":
        return (
          <div className="relative flex justify-end items-center gap-2">
            <Dropdown>
              <DropdownTrigger>
                <Button isIconOnly size="sm" variant="light">
                  <VerticalDotsIcon className="text-default-300" />
                </Button>
              </DropdownTrigger>
              <DropdownMenu>
                <DropdownItem key="view">View</DropdownItem>
                <DropdownItem key="edit">Edit</DropdownItem>
                <DropdownItem key="delete">Delete</DropdownItem>
              </DropdownMenu>
            </Dropdown>
          </div>
        );
      default:
        return cellValue;
    }
  }, []);

  const onNextPage = React.useCallback(() => {
    if (page < pages) {
      setPage(page + 1);
    }
  }, [page, pages]);

  const onPreviousPage = React.useCallback(() => {
    if (page > 1) {
      setPage(page - 1);
    }
  }, [page]);

  const onRowsPerPageChange = React.useCallback((e: React.ChangeEvent<HTMLSelectElement>) => {
    setRowsPerPage(Number(e.target.value));
    setPage(1);
  }, []);

  const onSearchChange = React.useCallback((value?: string) => {
    if (value) {
      setFilterValue(value);
      setPage(1);
    } else {
      setFilterValue("");
    }
  }, []);

  const onClear = React.useCallback(() => {
    setFilterValue("");
    setPage(1);
  }, []);

  const topContent = React.useMemo(() => {
    return (
      <div className="flex flex-col gap-4">
        <div className="flex justify-between gap-3 items-end">
          <Input
            isClearable
            className="w-full sm:max-w-[44%]"
            placeholder="Search by name..."
            startContent={<SearchIcon />}
            value={filterValue}
            onClear={() => onClear()}
            onValueChange={onSearchChange}
          />
          <div className="flex gap-3">
            <Dropdown>
              <DropdownTrigger className="hidden sm:flex">
                <Button endContent={<ChevronDownIcon className="text-small" />} variant="flat">
                  Status
                </Button>
              </DropdownTrigger>
              <DropdownMenu
                disallowEmptySelection
                aria-label="Table Columns"
                closeOnSelect={false}
                selectedKeys={statusFilter}
                selectionMode="multiple"
                onSelectionChange={setStatusFilter}
              >
                {statusOptions.map((status) => (
                  <DropdownItem key={status.uid} className="capitalize">
                    {capitalize(status.name)}
                  </DropdownItem>
                ))}
              </DropdownMenu>
            </Dropdown>
            <Dropdown>
              <DropdownTrigger className="hidden sm:flex">
                <Button endContent={<ChevronDownIcon className="text-small" />} variant="flat">
                  Columns
                </Button>
              </DropdownTrigger>
              <DropdownMenu
                disallowEmptySelection
                aria-label="Table Columns"
                closeOnSelect={false}
                selectedKeys={visibleColumns}
                selectionMode="multiple"
                onSelectionChange={setVisibleColumns}
              >
                {columns.map((column) => (
                  <DropdownItem key={column.uid} className="capitalize">
                    {capitalize(column.name)}
                  </DropdownItem>
                ))}
              </DropdownMenu>
            </Dropdown>
            <Button color="primary" endContent={<PlusIcon />}>
              Add New
            </Button>
          </div>
        </div>
        <div className="flex justify-between items-center">
          <span className="text-default-400 text-small">Total {users.length} users</span>
          <label className="flex items-center text-default-400 text-small">
            Rows per page:
            <select
              className="bg-transparent outline-none text-default-400 text-small"
              onChange={onRowsPerPageChange}
            >
              <option value="5">5</option>
              <option value="10">10</option>
              <option value="15">15</option>
            </select>
          </label>
        </div>
      </div>
    );
  }, [
    filterValue,
    statusFilter,
    visibleColumns,
    onSearchChange,
    onRowsPerPageChange,
    users.length,
    hasSearchFilter,
  ]);

  const bottomContent = React.useMemo(() => {
    return (
      <div className="py-2 px-2 flex justify-between items-center">
        <span className="w-[30%] text-small text-default-400">
          {selectedKeys === "all"
            ? "All items selected"
            : `${selectedKeys.size} of ${filteredItems.length} selected`}
        </span>
        <Pagination
          isCompact
          showControls
          showShadow
          color="primary"
          page={page}
          total={pages}
          onChange={setPage}
        />
        <div className="hidden sm:flex w-[30%] justify-end gap-2">
          <Button isDisabled={pages === 1} size="sm" variant="flat" onPress={onPreviousPage}>
            Previous
          </Button>
          <Button isDisabled={pages === 1} size="sm" variant="flat" onPress={onNextPage}>
            Next
          </Button>
        </div>
      </div>
    );
  }, [selectedKeys, items.length, page, pages, hasSearchFilter]);

  return (
    <Table
      isHeaderSticky
      aria-label="Example table with custom cells, pagination and sorting"
      bottomContent={bottomContent}
      bottomContentPlacement="outside"
      classNames={{
        wrapper: "max-h-[382px]",
      }}
      selectedKeys={selectedKeys}
      selectionMode="multiple"
      sortDescriptor={sortDescriptor}
      topContent={topContent}
      topContentPlacement="outside"
      onSelectionChange={setSelectedKeys}
      onSortChange={setSortDescriptor}
    >
      <TableHeader columns={headerColumns}>
        {(column) => (
          <TableColumn
            key={column.uid}
            align={column.uid === "actions" ? "center" : "start"}
            allowsSorting={column.sortable}
          >
            {column.name}
          </TableColumn>
        )}
      </TableHeader>
      <TableBody emptyContent={"No users found"} items={sortedItems}>
        {(item) => (
          <TableRow key={item.id}>
            {(columnKey) => <TableCell>{renderCell(item, columnKey)}</TableCell>}
          </TableRow>
        )}
      </TableBody>
    </Table>
  );
}