// @flow
import { observer } from "mobx-react";
import * as React from "react";
import { useState } from "react";
import { Trans, useTranslation } from "react-i18next";
import Collection from "models/Collection";
import Button from "components/Button";
import Flex from "components/Flex";
import HelpText from "components/HelpText";
import IconPicker from "components/IconPicker";
import Input from "components/Input";
import InputSelect from "components/InputSelect";
import useToasts from "hooks/useToasts";

type Props = {
  collection: Collection,
  onSubmit: () => void,
};

const CollectionEdit = ({ collection, onSubmit }: Props) => {
  const [name, setName] = useState(collection.name);
  const [icon, setIcon] = useState(collection.icon);
  const [color, setColor] = useState(collection.color || "#4E5C6E");
  const [sort, setSort] = useState<{
    field: string,
    direction: "asc" | "desc",
  }>(collection.sort);
  const [isSaving, setIsSaving] = useState();
  const { showToast } = useToasts();
  const { t } = useTranslation();

  const handleSubmit = React.useCallback(
    async (ev: SyntheticEvent<*>) => {
      ev.preventDefault();
      setIsSaving(true);

      try {
        await collection.save({
          name,
          icon,
          color,
          sort,
        });
        onSubmit();
        showToast(t("The collection was updated"), {
          type: "success",
        });
      } catch (err) {
        showToast(err.message, { type: "error" });
      } finally {
        setIsSaving(false);
      }
    },
    [collection, color, icon, name, onSubmit, showToast, sort, t]
  );

  const handleSortChange = (ev: SyntheticInputEvent<HTMLSelectElement>) => {
    const [field, direction] = ev.target.value.split(".");

    if (direction === "asc" || direction === "desc") {
      setSort({ field, direction });
    }
  };

  const handleNameChange = (ev: SyntheticInputEvent<*>) => {
    setName(ev.target.value.trim());
  };

  const handleChange = (color: string, icon: string) => {
    setColor(color);
    setIcon(icon);
  };

  return (
    <Flex column>
      <form onSubmit={handleSubmit}>
        <HelpText>
          <Trans>
            You can edit the name and other details at any time, however doing
            so often might confuse your team mates.
          </Trans>
        </HelpText>
        <Flex>
          <Input
            type="text"
            label={t("Name")}
            onChange={handleNameChange}
            value={name}
            required
            autoFocus
            flex
          />
          &nbsp;
          <IconPicker onChange={handleChange} color={color} icon={icon} />
        </Flex>
        <InputSelect
          label={t("Sort in sidebar")}
          options={[
            { label: t("Alphabetical"), value: "title.asc" },
            { label: t("Manual sort"), value: "index.asc" },
          ]}
          value={`${sort.field}.${sort.direction}`}
          onChange={handleSortChange}
        />
        <Button type="submit" disabled={isSaving || !collection.name}>
          {isSaving ? `${t("Saving")}…` : t("Save")}
        </Button>
      </form>
    </Flex>
  );
};

export default observer(CollectionEdit);