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path: root/packages/demobank-ui/src/pages/admin/AccountForm.tsx
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import { VNode,h  } from "preact";
import { ShowInputErrorLabel } from "../../components/ShowInputErrorLabel.js";
import { PartialButDefined, RecursivePartial, WithIntermediate, undefinedIfEmpty, validateIBAN } from "../../utils.js";
import { useState } from "preact/hooks";
import { useTranslationContext } from "@gnu-taler/web-util/browser";
import { parsePaytoUri } from "@gnu-taler/taler-util";

const IBAN_REGEX = /^[A-Z][A-Z0-9]*$/;
const EMAIL_REGEX =
  /^(([^<>()[\]\\.,;:\s@"]+(\.[^<>()[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
const REGEX_JUST_NUMBERS_REGEX = /^\+[0-9 ]*$/;

/**
 * Create valid account object to update or create
 * Take template as initial values for the form
 * Purpose indicate if all field al read only (show), part of them (update)
 * or none (create)
 * @param param0
 * @returns
 */
export function AccountForm({
    template,
    purpose,
    onChange,
  }: {
    template: SandboxBackend.Circuit.CircuitAccountData | undefined;
    onChange: (a: SandboxBackend.Circuit.CircuitAccountData | undefined) => void;
    purpose: "create" | "update" | "show";
  }): VNode {
    const initial = initializeFromTemplate(template);
    const [form, setForm] = useState(initial);
    const [errors, setErrors] = useState<
      RecursivePartial<typeof initial> | undefined
    >(undefined);
    const { i18n } = useTranslationContext();
  
    function updateForm(newForm: typeof initial): void {
      const parsed = !newForm.cashout_address
        ? undefined
        : parsePaytoUri(newForm.cashout_address);
  
      const errors = undefinedIfEmpty<RecursivePartial<typeof initial>>({
        cashout_address: !newForm.cashout_address
          ? i18n.str`required`
          : !parsed
            ? i18n.str`does not follow the pattern`
            : !parsed.isKnown || parsed.targetType !== "iban"
              ? i18n.str`only "IBAN" target are supported`
              : !IBAN_REGEX.test(parsed.iban)
                ? i18n.str`IBAN should have just uppercased letters and numbers`
                : validateIBAN(parsed.iban, i18n),
        contact_data: undefinedIfEmpty({
          email: !newForm.contact_data?.email
            ? i18n.str`required`
            : !EMAIL_REGEX.test(newForm.contact_data.email)
              ? i18n.str`it should be an email`
              : undefined,
          phone: !newForm.contact_data?.phone
            ? i18n.str`required`
            : !newForm.contact_data.phone.startsWith("+")
              ? i18n.str`should start with +`
              : !REGEX_JUST_NUMBERS_REGEX.test(newForm.contact_data.phone)
                ? i18n.str`phone number can't have other than numbers`
                : undefined,
        }),
        iban: !newForm.iban
          ? undefined //optional field
          : !IBAN_REGEX.test(newForm.iban)
            ? i18n.str`IBAN should have just uppercased letters and numbers`
            : validateIBAN(newForm.iban, i18n),
        name: !newForm.name ? i18n.str`required` : undefined,
        username: !newForm.username ? i18n.str`required` : undefined,
      });
      setErrors(errors);
      setForm(newForm);
      onChange(errors === undefined ? (newForm as any) : undefined);
    }
  
    return (
      <form class="pure-form">
        <fieldset>
          <label for="username">
            {i18n.str`Username`}
            {purpose === "create" && <b style={{ color: "red" }}>*</b>}
          </label>
          <input
            name="username"
            type="text"
            disabled={purpose !== "create"}
            value={form.username}
            onChange={(e) => {
              form.username = e.currentTarget.value;
              updateForm(structuredClone(form));
            }}
          />{" "}
          <ShowInputErrorLabel
            message={errors?.username}
            isDirty={form.username !== undefined}
          />
        </fieldset>
        <fieldset>
          <label>
            {i18n.str`Name`}
            {purpose === "create" && <b style={{ color: "red" }}>*</b>}
          </label>
          <input
            disabled={purpose !== "create"}
            value={form.name ?? ""}
            onChange={(e) => {
              form.name = e.currentTarget.value;
              updateForm(structuredClone(form));
            }}
          />
          <ShowInputErrorLabel
            message={errors?.name}
            isDirty={form.name !== undefined}
          />
        </fieldset>
        {purpose !== "create" && (
          <fieldset>
            <label>{i18n.str`Internal IBAN`}</label>
            <input
              disabled={true}
              value={form.iban ?? ""}
              onChange={(e) => {
                form.iban = e.currentTarget.value;
                updateForm(structuredClone(form));
              }}
            />
            <ShowInputErrorLabel
              message={errors?.iban}
              isDirty={form.iban !== undefined}
            />
          </fieldset>
        )}
        <fieldset>
          <label>
            {i18n.str`Email`}
            {purpose !== "show" && <b style={{ color: "red" }}>*</b>}
          </label>
          <input
            disabled={purpose === "show"}
            value={form.contact_data.email ?? ""}
            onChange={(e) => {
              form.contact_data.email = e.currentTarget.value;
              updateForm(structuredClone(form));
            }}
          />
          <ShowInputErrorLabel
            message={errors?.contact_data?.email}
            isDirty={form.contact_data.email !== undefined}
          />
        </fieldset>
        <fieldset>
          <label>
            {i18n.str`Phone`}
            {purpose !== "show" && <b style={{ color: "red" }}>*</b>}
          </label>
          <input
            disabled={purpose === "show"}
            value={form.contact_data.phone ?? ""}
            onChange={(e) => {
              form.contact_data.phone = e.currentTarget.value;
              updateForm(structuredClone(form));
            }}
          />
          <ShowInputErrorLabel
            message={errors?.contact_data?.phone}
            isDirty={form.contact_data?.phone !== undefined}
          />
        </fieldset>
        <fieldset>
          <label>
            {i18n.str`Cashout address`}
            {purpose !== "show" && <b style={{ color: "red" }}>*</b>}
          </label>
          <input
            disabled={purpose === "show"}
            value={(form.cashout_address ?? "").substring("payto://iban/".length)}
            onChange={(e) => {
              form.cashout_address = "payto://iban/" + e.currentTarget.value;
              updateForm(structuredClone(form));
            }}
          />
          <ShowInputErrorLabel
            message={errors?.cashout_address}
            isDirty={form.cashout_address !== undefined}
          />
        </fieldset>
      </form>
    );
  }
  
  function initializeFromTemplate(
    account: SandboxBackend.Circuit.CircuitAccountData | undefined,
  ): WithIntermediate<SandboxBackend.Circuit.CircuitAccountData> {
    const emptyAccount = {
      cashout_address: undefined,
      iban: undefined,
      name: undefined,
      username: undefined,
      contact_data: undefined,
    };
    const emptyContact = {
      email: undefined,
      phone: undefined,
    };
  
    const initial: PartialButDefined<SandboxBackend.Circuit.CircuitAccountData> =
      structuredClone(account) ?? emptyAccount;
    if (typeof initial.contact_data === "undefined") {
      initial.contact_data = emptyContact;
    }
    initial.contact_data.email;
    return initial as any;
  }