import Input from "@/components/Low/Input";
import Modal from "@/components/Modal";
import usePackages from "@/hooks/usePackages";
import { Module } from "@/interfaces";
import { Package } from "@/interfaces/paypal";
import { User } from "@/interfaces/user";
import {
  createColumnHelper,
  flexRender,
  getCoreRowModel,
  useReactTable,
} from "@tanstack/react-table";
import axios from "axios";
import { capitalize } from "lodash";
import { useCallback, useMemo, useState } from "react";
import { BsPencil, BsTrash } from "react-icons/bs";
import { toast } from "react-toastify";
import Select from "react-select";
import { CURRENCIES } from "@/resources/paypal";
import Button from "@/components/Low/Button";

const CLASSES: { [key in Module]: string } = {
  reading: "text-ielts-reading",
  listening: "text-ielts-listening",
  speaking: "text-ielts-speaking",
  writing: "text-ielts-writing",
  level: "text-ielts-level",
};

const columnHelper = createColumnHelper<Package>();

type DurationUnit = "days" | "weeks" | "months" | "years";

const currencyOptions = CURRENCIES.map(({ label, currency }) => ({
  value: currency,
  label,
}));

function PackageCreator({
  pack,
  onClose,
}: {
  pack?: Package;
  onClose: () => void;
}) {
  const [duration, setDuration] = useState(pack?.duration || 1);
  const [unit, setUnit] = useState<DurationUnit>(
    pack?.duration_unit || "months"
  );

  const [price, setPrice] = useState(pack?.price || 0);
  const [currency, setCurrency] = useState<string>(pack?.currency || "OMR");

  const submit = useCallback(() => {
    (pack ? axios.patch : axios.post)(
      pack ? `/api/packages/${pack.id}` : "/api/packages",
      {
        duration,
        duration_unit: unit,
        price,
        currency,
      }
    )
      .then(() => {
        toast.success("New payment has been created successfully!");
        onClose();
      })
      .catch(() => {
        toast.error("Something went wrong, please try again later!");
      });
  }, [duration, unit, price, currency, pack, onClose]);

  const currencyDefaultValue = useMemo(() => {
    return {
      value: currency || "EUR",
      label: CURRENCIES.find((c) => c.currency === currency)?.label || "Euro",
    };
  }, [currency]);

  return (
    <div className="flex flex-col gap-8 py-8">
      <div className="flex flex-col gap-3">
        <label className="font-normal text-base text-mti-gray-dim">
          Price *
        </label>
        <div className="flex gap-4 items-center">
          <Input
            defaultValue={price}
            name="price"
            type="number"
            onChange={(e) => setPrice(parseInt(e))}
          />

          <Select
            className="px-4 col-span-2 py-4 w-full text-sm font-normal placeholder:text-mti-gray-cool disabled:bg-mti-gray-platinum/40 disabled:text-mti-gray-dim disabled:cursor-not-allowed bg-white rounded-full border border-mti-gray-platinum focus:outline-none"
            options={currencyOptions}
            defaultValue={currencyDefaultValue}
            onChange={(value) => setCurrency(value?.value || "EUR")}
            value={currencyDefaultValue}
            menuPortalTarget={document?.body}
            styles={{
              menuPortal: (base) => ({ ...base, zIndex: 9999 }),
              control: (styles) => ({
                ...styles,
                paddingLeft: "4px",
                border: "none",
                outline: "none",
                ":focus": {
                  outline: "none",
                },
              }),
              option: (styles, state) => ({
                ...styles,
                backgroundColor: state.isFocused
                  ? "#D5D9F0"
                  : state.isSelected
                  ? "#7872BF"
                  : "white",
                color: state.isFocused ? "black" : styles.color,
              }),
            }}
          />
        </div>
      </div>
      <div className="flex flex-col gap-3">
        <label className="font-normal text-base text-mti-gray-dim">
          Duration *
        </label>
        <div className="flex gap-4 items-center">
          <Input
            defaultValue={duration}
            name="duration"
            type="number"
            onChange={(e) => setDuration(parseInt(e))}
          />
          <Select
            className="px-4 col-span-2 py-4 w-full text-sm font-normal placeholder:text-mti-gray-cool disabled:bg-mti-gray-platinum/40 disabled:text-mti-gray-dim disabled:cursor-not-allowed bg-white rounded-full border border-mti-gray-platinum focus:outline-none"
            options={[
              { value: "days", label: "Days" },
              { value: "weeks", label: "Weeks" },
              { value: "months", label: "Months" },
              { value: "years", label: "Years" },
            ]}
            defaultValue={{ value: "months", label: "Months" }}
            onChange={(value) =>
              setUnit((value?.value as DurationUnit) || "months")
            }
            value={{ value: unit, label: capitalize(unit) }}
            menuPortalTarget={document?.body}
            styles={{
              menuPortal: (base) => ({ ...base, zIndex: 9999 }),
              control: (styles) => ({
                ...styles,
                paddingLeft: "4px",
                border: "none",
                outline: "none",
                ":focus": {
                  outline: "none",
                },
              }),
              option: (styles, state) => ({
                ...styles,
                backgroundColor: state.isFocused
                  ? "#D5D9F0"
                  : state.isSelected
                  ? "#7872BF"
                  : "white",
                color: state.isFocused ? "black" : styles.color,
              }),
            }}
          />
        </div>
      </div>
      <div className="flex w-full justify-end items-center gap-8 mt-8">
        <Button
          variant="outline"
          color="red"
          className="w-full max-w-[200px]"
          onClick={onClose}
        >
          Cancel
        </Button>
        <Button
          className="w-full max-w-[200px]"
          onClick={submit}
          disabled={!duration || !price}
        >
          Submit
        </Button>
      </div>
    </div>
  );
}

export default function PackageList({ user }: { user: User }) {
  const [isCreating, setIsCreating] = useState(false);
  const [editingPackage, setEditingPackage] = useState<Package>();

  const { packages, reload } = usePackages();

  const deletePackage = useCallback(
    async (pack: Package) => {
      if (!confirm(`Are you sure you want to delete this package?`)) return;

      axios
        .delete(`/api/packages/${pack.id}`)
        .then(() => toast.success(`Deleted the "${pack.id}" exam`))
        .catch((reason) => {
          if (reason.response.status === 404) {
            toast.error("Package not found!");
            return;
          }

          if (reason.response.status === 403) {
            toast.error("You do not have permission to delete this exam!");
            return;
          }

          toast.error("Something went wrong, please try again later.");
        })
        .finally(reload);
    },
    [reload]
  );

  const defaultColumns = useMemo(
    () => [
      columnHelper.accessor("id", {
        header: "ID",
        cell: (info) => info.getValue(),
      }),
      columnHelper.accessor("duration", {
        header: "Duration",
        cell: (info) => (
          <span>
            {info.getValue()} {info.row.original.duration_unit}
          </span>
        ),
      }),
      columnHelper.accessor("price", {
        header: "Price",
        cell: (info) => (
          <span>
            {info.getValue()} {info.row.original.currency}
          </span>
        ),
      }),
      {
        header: "",
        id: "actions",
        cell: ({ row }: { row: { original: Package } }) => {
          return (
            <div className="flex gap-4">
              {["developer", "admin"].includes(user?.type) && (
                <div
                  data-tip="Edit"
                  className="cursor-pointer tooltip"
                  onClick={() => setEditingPackage(row.original)}
                >
                  <BsPencil className="hover:text-mti-purple-light transition ease-in-out duration-300" />
                </div>
              )}
              {["developer", "admin"].includes(user?.type) && (
                <div
                  data-tip="Delete"
                  className="cursor-pointer tooltip"
                  onClick={() => deletePackage(row.original)}
                >
                  <BsTrash className="hover:text-mti-purple-light transition ease-in-out duration-300" />
                </div>
              )}
            </div>
          );
        },
      },
    ],
    [deletePackage, user]
  );

  const table = useReactTable({
    data: packages,
    columns: defaultColumns,
    getCoreRowModel: getCoreRowModel(),
  });

  const closeModal = useCallback(() => {
    setIsCreating(false);
    setEditingPackage(undefined);
    reload();
  }, [reload]);

  return (
    <div className="w-full h-full rounded-xl">
      <Modal
        isOpen={isCreating || !!editingPackage}
        onClose={closeModal}
        title={editingPackage ? `Editing ${editingPackage.id}` : "New Package"}
      >
        <PackageCreator onClose={closeModal} pack={editingPackage} />
      </Modal>
      <table className="bg-mti-purple-ultralight/40 w-full">
        <thead>
          {table.getHeaderGroups().map((headerGroup) => (
            <tr key={headerGroup.id}>
              {headerGroup.headers.map((header) => (
                <th className="p-4 text-left" key={header.id}>
                  {header.isPlaceholder
                    ? null
                    : flexRender(
                        header.column.columnDef.header,
                        header.getContext()
                      )}
                </th>
              ))}
            </tr>
          ))}
        </thead>
        <tbody className="px-2">
          {table.getRowModel().rows.map((row) => (
            <tr
              className="odd:bg-white even:bg-mti-purple-ultralight/40 rounded-lg py-2"
              key={row.id}
            >
              {row.getVisibleCells().map((cell) => (
                <td className="px-4 py-2" key={cell.id}>
                  {flexRender(cell.column.columnDef.cell, cell.getContext())}
                </td>
              ))}
            </tr>
          ))}
        </tbody>
      </table>
      <button
        onClick={() => setIsCreating(true)}
        className="w-full py-2 bg-mti-purple-light hover:bg-mti-purple transition ease-in-out duration-300 text-white"
      >
        New Package
      </button>
    </div>
  );
}