import { useEffect, useState } from "react";
import { flushSync } from "react-dom";
import { useTranslation } from "react-i18next";
import { Button, Form, Input, InputNumber, Upload, type FormInstance, type UploadFile, type UploadProps } from "antd";
import { createSchemaFieldRule } from "antd-zod";
import { z } from "zod";
import { Upload as UploadIcon } from "lucide-react";

import { type SSHAccessConfig } from "@/domain/access";
import { readFileContent } from "@/utils/file";

type AccessEditFormSSHConfigModelType = Partial<SSHAccessConfig>;

export type AccessEditFormSSHConfigProps = {
  form: FormInstance;
  disabled?: boolean;
  loading?: boolean;
  model?: AccessEditFormSSHConfigModelType;
  onModelChange?: (model: AccessEditFormSSHConfigModelType) => void;
};

const initModel = () => {
  return {
    host: "127.0.0.1",
    port: 22,
    username: "root",
  } as AccessEditFormSSHConfigModelType;
};

const AccessEditFormSSHConfig = ({ form, disabled, loading, model, onModelChange }: AccessEditFormSSHConfigProps) => {
  const { t } = useTranslation();

  const formSchema = z.object({
    host: z.string().refine(
      (str) => {
        const reIpv4 =
          /^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/;
        const reIpv6 =
          /^([\da-fA-F]{1,4}:){6}((25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(25[0-5]|2[0-4]\d|[01]?\d\d?)|::([\da−fA−F]1,4:)0,4((25[0−5]|2[0−4]\d|[01]?\d\d?)\.)3(25[0−5]|2[0−4]\d|[01]?\d\d?)|::([\da−fA−F]1,4:)0,4((25[0−5]|2[0−4]\d|[01]?\d\d?)\.)3(25[0−5]|2[0−4]\d|[01]?\d\d?)|^([\da-fA-F]{1,4}:):([\da-fA-F]{1,4}:){0,3}((25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(25[0-5]|2[0-4]\d|[01]?\d\d?)|([\da−fA−F]1,4:)2:([\da−fA−F]1,4:)0,2((25[0−5]|2[0−4]\d|[01]?\d\d?)\.)3(25[0−5]|2[0−4]\d|[01]?\d\d?)|([\da−fA−F]1,4:)2:([\da−fA−F]1,4:)0,2((25[0−5]|2[0−4]\d|[01]?\d\d?)\.)3(25[0−5]|2[0−4]\d|[01]?\d\d?)|^([\da-fA-F]{1,4}:){3}:([\da-fA-F]{1,4}:){0,1}((25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(25[0-5]|2[0-4]\d|[01]?\d\d?)|([\da−fA−F]1,4:)4:((25[0−5]|2[0−4]\d|[01]?\d\d?)\.)3(25[0−5]|2[0−4]\d|[01]?\d\d?)|([\da−fA−F]1,4:)4:((25[0−5]|2[0−4]\d|[01]?\d\d?)\.)3(25[0−5]|2[0−4]\d|[01]?\d\d?)|^([\da-fA-F]{1,4}:){7}[\da-fA-F]{1,4}|:((:[\da−fA−F]1,4)1,6|:)|:((:[\da−fA−F]1,4)1,6|:)|^[\da-fA-F]{1,4}:((:[\da-fA-F]{1,4}){1,5}|:)|([\da−fA−F]1,4:)2((:[\da−fA−F]1,4)1,4|:)|([\da−fA−F]1,4:)2((:[\da−fA−F]1,4)1,4|:)|^([\da-fA-F]{1,4}:){3}((:[\da-fA-F]{1,4}){1,3}|:)|([\da−fA−F]1,4:)4((:[\da−fA−F]1,4)1,2|:)|([\da−fA−F]1,4:)4((:[\da−fA−F]1,4)1,2|:)|^([\da-fA-F]{1,4}:){5}:([\da-fA-F]{1,4})?|([\da−fA−F]1,4:)6:|([\da−fA−F]1,4:)6:/;
        const reDomain = /^(?:\*\.)?([a-zA-Z0-9-]+\.)+[a-zA-Z]{2,}$/;
        return reIpv4.test(str) || reIpv6.test(str) || reDomain.test(str);
      },
      { message: t("common.errmsg.host_invalid") }
    ),
    port: z
      .number()
      .int()
      .gte(1, t("common.errmsg.port_invalid"))
      .lte(65535, t("common.errmsg.port_invalid"))
      .transform((v) => +v),
    username: z
      .string()
      .min(1, "access.form.ssh_username.placeholder")
      .max(64, t("common.errmsg.string_max", { max: 64 })),
    password: z
      .string()
      .min(0, "access.form.ssh_password.placeholder")
      .max(64, t("common.errmsg.string_max", { max: 64 }))
      .nullish(),
    key: z
      .string()
      .min(0, "access.form.ssh_key.placeholder")
      .max(20480, t("common.errmsg.string_max", { max: 20480 }))
      .nullish(),
    keyPassphrase: z
      .string()
      .min(0, "access.form.ssh_key_passphrase.placeholder")
      .max(20480, t("common.errmsg.string_max", { max: 20480 }))
      .nullish()
      .refine((v) => !v || form.getFieldValue("key"), { message: t("access.form.ssh_key.placeholder") }),
  });
  const formRule = createSchemaFieldRule(formSchema);

  const [initialValues, setInitialValues] = useState<Partial<z.infer<typeof formSchema>>>(model ?? initModel());
  useEffect(() => {
    setInitialValues(model ?? initModel());
    setKeyFileList(model?.key?.trim() ? [{ uid: "-1", name: "sshkey", status: "done" }] : []);
  }, [model]);

  const [keyFileList, setKeyFileList] = useState<UploadFile[]>([]);

  const handleFormChange = (_: unknown, fields: AccessEditFormSSHConfigModelType) => {
    onModelChange?.(fields);
  };

  const handleUploadChange: UploadProps["onChange"] = async ({ file }) => {
    if (file && file.status !== "removed") {
      form.setFieldValue("kubeConfig", (await readFileContent(file.originFileObj ?? (file as unknown as File))).trim());
      setKeyFileList([file]);
    } else {
      form.setFieldValue("kubeConfig", "");
      setKeyFileList([]);
    }

    flushSync(() => onModelChange?.(form.getFieldsValue()));
  };

  return (
    <Form form={form} disabled={loading || disabled} initialValues={initialValues} layout="vertical" name="configForm" onValuesChange={handleFormChange}>
      <div className="flex space-x-2">
        <div className="w-2/3">
          <Form.Item name="host" label={t("access.form.ssh_host.label")} rules={[formRule]}>
            <Input placeholder={t("access.form.ssh_host.placeholder")} />
          </Form.Item>
        </div>

        <div className="w-1/3">
          <Form.Item name="port" label={t("access.form.ssh_port.label")} rules={[formRule]}>
            <InputNumber className="w-full" placeholder={t("access.form.ssh_port.placeholder")} min={1} max={65535} />
          </Form.Item>
        </div>
      </div>

      <div className="flex space-x-2">
        <div className="w-1/2">
          <Form.Item name="username" label={t("access.form.ssh_username.label")} rules={[formRule]}>
            <Input placeholder={t("access.form.ssh_username.placeholder")} />
          </Form.Item>
        </div>

        <div className="w-1/2">
          <Form.Item
            name="password"
            label={t("access.form.ssh_password.label")}
            rules={[formRule]}
            tooltip={<span dangerouslySetInnerHTML={{ __html: t("access.form.ssh_password.tooltip") }}></span>}
          >
            <Input.Password placeholder={t("access.form.ssh_password.placeholder")} />
          </Form.Item>
        </div>
      </div>

      <div className="flex space-x-2">
        <div className="w-1/2">
          <Form.Item
            name="key"
            label={t("access.form.ssh_key.label")}
            rules={[formRule]}
            tooltip={<span dangerouslySetInnerHTML={{ __html: t("access.form.ssh_key.tooltip") }}></span>}
          >
            <Input.TextArea hidden placeholder={t("access.form.ssh_key.placeholder")} value={form.getFieldValue("key")} />
            <Upload beforeUpload={() => false} fileList={keyFileList} maxCount={1} onChange={handleUploadChange}>
              <Button icon={<UploadIcon size={16} />}>{t("access.form.ssh_key.upload")}</Button>
            </Upload>
          </Form.Item>
        </div>

        <div className="w-1/2">
          <Form.Item
            name="keyPassphrase"
            label={t("access.form.ssh_key_passphrase.label")}
            rules={[formRule]}
            tooltip={<span dangerouslySetInnerHTML={{ __html: t("access.form.ssh_key_passphrase.tooltip") }}></span>}
          >
            <Input.Password placeholder={t("access.form.ssh_key_passphrase.placeholder")} />
          </Form.Item>
        </div>
      </div>
    </Form>
  );
};

export default AccessEditFormSSHConfig;