import { zodResolver } from "@hookform/resolvers/zod";
import type { GetServerSidePropsContext } from "next";
import { getSession } from "next-auth/react";
import type { TFunction } from "next-i18next";
import { serverSideTranslations } from "next-i18next/serverSideTranslations";
import { useState } from "react";
import { Controller, useForm } from "react-hook-form";
import { z } from "zod";

import { useLocale } from "@calcom/lib/hooks/useLocale";
import { UserPermissionRole } from "@calcom/prisma/enums";
import { getStringAsNumberRequiredSchema } from "@calcom/prisma/zod-utils";
import { Button, Form, Meta, SelectField, TextField, showToast } from "@calcom/ui";

import PageWrapper from "@components/PageWrapper";

import { getLayout } from "./_OrgMigrationLayout";

export const getFormSchema = (t: TFunction) => {
  return z.object({
    teamId: z.number().or(getStringAsNumberRequiredSchema(t)),
    targetOrgId: z.number().or(getStringAsNumberRequiredSchema(t)),
    moveMembers: z.boolean(),
    teamSlugInOrganization: z.string(),
  });
};

function Wrapper({ children }: { children: React.ReactNode }) {
  return (
    <div>
      <Meta title="Organization Migration: Move a team" description="Migrates a team to an organization" />
      {children}
    </div>
  );
}

const enum State {
  IDLE,
  LOADING,
  SUCCESS,
  ERROR,
}

export default function MoveTeamToOrg() {
  const [state, setState] = useState(State.IDLE);
  const moveUsersOptions = [
    {
      label: "No",
      value: "false",
    },
    {
      label: "Yes",
      value: "true",
    },
  ];
  const { t } = useLocale();
  const formSchema = getFormSchema(t);
  const formMethods = useForm({
    mode: "onSubmit",
    resolver: zodResolver(formSchema),
  });

  const { register, watch } = formMethods;
  const moveMembers = watch("moveMembers");
  return (
    <Wrapper>
      <Form
        className="space-y-6"
        noValidate={true}
        form={formMethods}
        handleSubmit={async (values) => {
          setState(State.LOADING);
          const res = await fetch(`/api/orgMigration/moveTeamToOrg`, {
            method: "POST",
            headers: {
              "Content-Type": "application/json",
            },
            body: JSON.stringify(values),
          });
          let response = null;
          try {
            response = await res.json();
          } catch (e) {
            if (e instanceof Error) {
              showToast(e.message, "error", 10000);
            } else {
              showToast(t("something_went_wrong"), "error", 10000);
            }
            setState(State.ERROR);
            return;
          }
          if (res.status === 200) {
            setState(State.SUCCESS);
            showToast(response.message, "success", 10000);
          } else {
            setState(State.ERROR);
            showToast(response.message, "error", 10000);
          }
        }}>
        <div className="space-y-6">
          <TextField
            {...register("teamId")}
            label="Team ID"
            required
            placeholder="Enter teamId to move to org"
          />
          <TextField
            {...register("teamSlugInOrganization")}
            label="New Slug"
            required
            placeholder="Team slug in the Organization"
          />
          <TextField
            {...register("targetOrgId")}
            label="Target Organization ID"
            required
            placeholder="Enter Target organization ID"
          />
          <div>
            <Controller
              name="moveMembers"
              render={({ field: { value, onChange } }) => (
                <SelectField
                  containerClassName="mb-0"
                  label="Move users"
                  onChange={(option) => {
                    onChange(option?.value === "true");
                  }}
                  value={moveUsersOptions.find((opt) => opt.value === value)}
                  options={moveUsersOptions}
                />
              )}
            />

            {moveMembers === true ? (
              <div className="mt-2">Members of the team will also be moved to the organization</div>
            ) : moveMembers === false ? (
              <div className="mt-2">Members of the team will not be moved to the organization</div>
            ) : null}
          </div>
        </div>
        <Button type="submit" loading={state === State.LOADING}>
          Move Team to Org
        </Button>
      </Form>
    </Wrapper>
  );
}

export async function getServerSideProps(ctx: GetServerSidePropsContext) {
  const session = await getSession(ctx);
  if (!session || !session.user) {
    return {
      redirect: {
        destination: "/login",
        permanent: false,
      },
    };
  }

  const isAdmin = session.user.role === UserPermissionRole.ADMIN;
  if (!isAdmin) {
    return {
      redirect: {
        destination: "/",
        permanent: false,
      },
    };
  }
  return {
    props: {
      error: null,
      migrated: null,
      userId: session.user.id,
      ...(await serverSideTranslations(ctx.locale || "en", ["common"])),
      username: session.user.username,
    },
  };
}

MoveTeamToOrg.PageWrapper = PageWrapper;
MoveTeamToOrg.getLayout = getLayout;