import {
  Accordion,
  Alert,
  Button,
  Checkbox,
  Col,
  Grid,
  Group,
  MultiSelect,
  NumberInput,
  PasswordInput,
  Select,
  Stack,
  Text,
  TextInput,
  Title,
} from "@mantine/core";
import { useForm, yupResolver } from "@mantine/form";
import { useModals } from "@mantine/modals";
import { ModalsContextProps } from "@mantine/modals/lib/context";
import getConfig from "next/config";
import { useState } from "react";
import { TbAlertCircle } from "react-icons/tb";
import * as yup from "yup";
import shareService from "../../../services/share.service";
import { ShareSecurity } from "../../../types/share.type";
import ExpirationPreview from "../ExpirationPreview";

const { publicRuntimeConfig } = getConfig();

const showCreateUploadModal = (
  modals: ModalsContextProps,
  isSignedIn: boolean,
  uploadCallback: (
    id: string,
    expiration: string,
    recipients: string[],
    security: ShareSecurity
  ) => void
) => {
  return modals.openModal({
    title: <Title order={4}>Share</Title>,
    children: (
      <CreateUploadModalBody
        isSignedIn={isSignedIn}
        uploadCallback={uploadCallback}
      />
    ),
  });
};

const CreateUploadModalBody = ({
  uploadCallback,
  isSignedIn,
}: {
  uploadCallback: (
    id: string,
    expiration: string,
    recipients: string[],
    security: ShareSecurity
  ) => void;
  isSignedIn: boolean;
}) => {
  const modals = useModals();

  const [showNotSignedInAlert, setShowNotSignedInAlert] = useState(
    publicRuntimeConfig.ALLOW_UNAUTHENTICATED_SHARES == "true"
  );

  const validationSchema = yup.object().shape({
    link: yup
      .string()
      .required()
      .min(3)
      .max(50)
      .matches(new RegExp("^[a-zA-Z0-9_-]*$"), {
        message: "Can only contain letters, numbers, underscores and hyphens",
      }),
    password: yup.string().min(3).max(30),
    maxViews: yup.number().min(1),
  });
  const form = useForm({
    initialValues: {
      link: "",
      recipients: [] as string[],
      password: undefined,
      maxViews: undefined,
      expiration_num: 1,
      expiration_unit: "-days",
      never_expires: false,
    },
    validate: yupResolver(validationSchema),
  });
  return (
    <Group>
      {showNotSignedInAlert && !isSignedIn && (
        <Alert
          withCloseButton
          onClose={() => setShowNotSignedInAlert(false)}
          icon={<TbAlertCircle size={16} />}
          title="You're not signed in"
          color="yellow"
        >
          You will be unable to delete your share manually and view the visitor
          count.
        </Alert>
      )}
      <form
        onSubmit={form.onSubmit(async (values) => {
          if (!(await shareService.isShareIdAvailable(values.link))) {
            form.setFieldError("link", "This link is already in use");
          } else {
            const expiration = form.values.never_expires
              ? "never"
              : form.values.expiration_num + form.values.expiration_unit;
            uploadCallback(values.link, expiration, values.recipients, {
              password: values.password,
              maxViews: values.maxViews,
            });
            modals.closeAll();
          }
        })}
      >
        <Stack align="stretch">
          <Grid align={form.errors.link ? "center" : "flex-end"}>
            <Col xs={9}>
              <TextInput
                variant="filled"
                label="Link"
                placeholder="myAwesomeShare"
                {...form.getInputProps("link")}
              />
            </Col>
            <Col xs={3}>
              <Button
                variant="outline"
                onClick={() =>
                  form.setFieldValue(
                    "link",
                    Buffer.from(Math.random().toString(), "utf8")
                      .toString("base64")
                      .substr(10, 7)
                  )
                }
              >
                Generate
              </Button>
            </Col>
          </Grid>

          <Text
            italic
            size="xs"
            sx={(theme) => ({
              color: theme.colors.gray[6],
            })}
          >
            {window.location.origin}/share/
            {form.values.link == "" ? "myAwesomeShare" : form.values.link}
          </Text>
          <Grid align={form.errors.link ? "center" : "flex-end"}>
            <Col xs={6}>
              <NumberInput
                min={1}
                max={99999}
                precision={0}
                variant="filled"
                label="Expiration"
                placeholder="n"
                disabled={form.values.never_expires}
                {...form.getInputProps("expiration_num")}
              />
            </Col>
            <Col xs={6}>
              <Select
                disabled={form.values.never_expires}
                {...form.getInputProps("expiration_unit")}
                data={[
                  // Set the label to singular if the number is 1, else plural
                  {
                    value: "-minutes",
                    label:
                      "Minute" + (form.values.expiration_num == 1 ? "" : "s"),
                  },
                  {
                    value: "-hours",
                    label:
                      "Hour" + (form.values.expiration_num == 1 ? "" : "s"),
                  },
                  {
                    value: "-days",
                    label: "Day" + (form.values.expiration_num == 1 ? "" : "s"),
                  },
                  {
                    value: "-weeks",
                    label:
                      "Week" + (form.values.expiration_num == 1 ? "" : "s"),
                  },
                  {
                    value: "-months",
                    label:
                      "Month" + (form.values.expiration_num == 1 ? "" : "s"),
                  },
                  {
                    value: "-years",
                    label:
                      "Year" + (form.values.expiration_num == 1 ? "" : "s"),
                  },
                ]}
              />
            </Col>
          </Grid>
          <Checkbox
            label="Never Expires"
            {...form.getInputProps("never_expires")}
          />
          {/* Preview expiration date text */}
          <Text
            italic
            size="xs"
            sx={(theme) => ({
              color: theme.colors.gray[6],
            })}
          >
            {ExpirationPreview({ form })}
          </Text>
          <Accordion>
            {publicRuntimeConfig.EMAIL_RECIPIENTS_ENABLED == "true" && (
              <Accordion.Item value="recipients" sx={{ borderBottom: "none" }}>
                <Accordion.Control>Email recipients</Accordion.Control>
                <Accordion.Panel>
                  <MultiSelect
                    data={form.values.recipients}
                    placeholder="Enter email recipients"
                    searchable
                    {...form.getInputProps("recipients")}
                    creatable
                    getCreateLabel={(query) => `+ ${query}`}
                    onCreate={(query) => {
                      if (!query.match(/^\S+@\S+\.\S+$/)) {
                        form.setFieldError(
                          "recipients",
                          "Invalid email address"
                        );
                      } else {
                        form.setFieldError("recipients", null);
                        form.setFieldValue("recipients", [
                          ...form.values.recipients,
                          query,
                        ]);
                        return query;
                      }
                    }}
                  />
                </Accordion.Panel>
              </Accordion.Item>
            )}
            <Accordion.Item value="security" sx={{ borderBottom: "none" }}>
              <Accordion.Control>Security options</Accordion.Control>
              <Accordion.Panel>
                <Stack align="stretch">
                  <PasswordInput
                    variant="filled"
                    placeholder="No password"
                    label="Password protection"
                    {...form.getInputProps("password")}
                  />
                  <NumberInput
                    min={1}
                    type="number"
                    variant="filled"
                    placeholder="No limit"
                    label="Maximal views"
                    {...form.getInputProps("maxViews")}
                  />
                </Stack>
              </Accordion.Panel>
            </Accordion.Item>
          </Accordion>
          <Button type="submit">Share</Button>
        </Stack>
      </form>
    </Group>
  );
};

export default showCreateUploadModal;