"use client";

import { Dispatch, SetStateAction, useState, useTransition } from "react";
import { zodResolver } from "@hookform/resolvers/zod";
import { User } from "@prisma/client";
import { useForm } from "react-hook-form";
import { toast } from "sonner";

import { CreateDNSRecord, RecordType } from "@/lib/cloudflare";
import { UserRecordFormData } from "@/lib/dto/cloudflare-dns-record";
import { RECORD_TYPE_ENUMS, TTL_ENUMS } from "@/lib/enums";
import { createRecordSchema } from "@/lib/validations/record";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";
import { Icons } from "@/components/shared/icons";

import { FormSectionColumns } from "../dashboard/form-section-columns";
import {
  Select,
  SelectContent,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from "../ui/select";

export type FormData = CreateDNSRecord;

export type FormType = "add" | "edit";

export interface RecordFormProps {
  user: Pick<User, "id" | "name">;
  isShowForm: boolean;
  setShowForm: Dispatch<SetStateAction<boolean>>;
  type: FormType;
  initData?: UserRecordFormData | null;
  action: string;
  onRefresh: () => void;
}

export function RecordForm({
  user,
  isShowForm,
  setShowForm,
  type,
  initData,
  action,
  onRefresh,
}: RecordFormProps) {
  const [isPending, startTransition] = useTransition();
  const [isDeleting, startDeleteTransition] = useTransition();
  const [currentRecordType, setCurrentRecordType] = useState(
    initData?.type || "CNAME",
  );

  const {
    handleSubmit,
    register,
    formState: { errors },
    getValues,
    setValue,
  } = useForm<FormData>({
    resolver: zodResolver(createRecordSchema),
    defaultValues: {
      type: initData?.type || "CNAME",
      ttl: initData?.ttl || 1,
      proxied: initData?.proxied || false,
      comment: initData?.comment || "",
      name:
        (initData?.name.endsWith(".wr.do")
          ? initData?.name.slice(0, -6)
          : initData?.name) || "",
      content: initData?.content || "",
    },
  });

  const onSubmit = handleSubmit((data) => {
    if (type === "add") {
      handleCreateRecord(data);
    } else if (type === "edit") {
      handleUpdateRecord(data);
    }
  });

  const handleCreateRecord = async (data: CreateDNSRecord) => {
    startTransition(async () => {
      const response = await fetch(`${action}/add`, {
        method: "POST",
        body: JSON.stringify({
          records: [data],
        }),
      });
      if (!response.ok || response.status !== 200) {
        toast.error("Created Failed!", {
          description: response.statusText,
        });
      } else {
        const res = await response.json();
        toast.success(`Created successfully!`);
        setShowForm(false);
        onRefresh();
      }
    });
  };

  const handleUpdateRecord = async (data: CreateDNSRecord) => {
    startTransition(async () => {
      if (type === "edit") {
        const response = await fetch(`${action}/update`, {
          method: "POST",
          body: JSON.stringify({
            recordId: initData?.record_id,
            record: data,
            userId: initData?.userId,
          }),
        });
        if (!response.ok || response.status !== 200) {
          toast.error("Update Failed", {
            description: response.statusText,
          });
        } else {
          const res = await response.json();
          toast.success(`Update successfully!`);
          setShowForm(false);
          onRefresh();
        }
      }
    });
  };

  const handleDeleteRecord = async () => {
    if (type === "edit") {
      startDeleteTransition(async () => {
        const response = await fetch(`${action}/delete`, {
          method: "POST",
          body: JSON.stringify({
            record_id: initData?.record_id,
            zone_id: initData?.zone_id,
            active: initData?.active,
            userId: initData?.userId,
          }),
        });
        if (!response.ok || response.status !== 200) {
          toast.error("Delete Failed", {
            description: response.statusText,
          });
        } else {
          await response.json();
          toast.success(`Success`);
          setShowForm(false);
          onRefresh();
        }
      });
    }
  };

  return (
    <form
      className="mb-4 rounded-lg border border-dashed p-4 shadow-sm animate-in fade-in-50"
      onSubmit={onSubmit}
    >
      <div className="items-center justify-start gap-4 md:flex">
        <FormSectionColumns title="Type">
          <Select
            onValueChange={(value: RecordType) => {
              setValue("type", value);
              setCurrentRecordType(value);
            }}
            name={"type"}
            defaultValue={initData?.type || "CNAME"}
          >
            <SelectTrigger className="w-full shadow-inner">
              <SelectValue placeholder="Select a type" />
            </SelectTrigger>
            <SelectContent>
              {RECORD_TYPE_ENUMS.map((type) => (
                <SelectItem key={type.value} value={type.value}>
                  {type.label}
                </SelectItem>
              ))}
            </SelectContent>
          </Select>
          <p className="p-1 text-[13px] text-muted-foreground">Required.</p>
        </FormSectionColumns>
        <FormSectionColumns title="Name">
          <div className="flex w-full items-center gap-2">
            <Label className="sr-only" htmlFor="name">
              Name (required)
            </Label>
            <div className="relative">
              <Input
                id="name"
                className="flex-1 shadow-inner"
                size={32}
                {...register("name")}
              />
              <span className="absolute right-2 top-1/2 -translate-y-1/2 text-sm text-slate-500">
                .wr.do
              </span>
            </div>
          </div>
          <div className="flex flex-col justify-between p-1">
            {errors?.name ? (
              <p className="pb-0.5 text-[13px] text-red-600">
                {errors.name.message}
              </p>
            ) : (
              <p className="pb-0.5 text-[13px] text-muted-foreground">
                Required. Use @ for root.
              </p>
            )}
          </div>
        </FormSectionColumns>
        <FormSectionColumns
          title={
            currentRecordType === "CNAME"
              ? "Content"
              : currentRecordType === "A"
                ? "IPv4 address"
                : "Content"
          }
        >
          <div className="flex w-full items-center gap-2">
            <Label className="sr-only" htmlFor="content">
              Content
            </Label>
            <Input
              id="content"
              className="flex-1 shadow-inner"
              size={32}
              {...register("content")}
            />
          </div>
          <div className="flex flex-col justify-between p-1">
            {errors?.content ? (
              <p className="pb-0.5 text-[13px] text-red-600">
                {errors.content.message}
              </p>
            ) : (
              <p className="pb-0.5 text-[13px] text-muted-foreground">
                {currentRecordType === "CNAME"
                  ? "Required. E.g. www.example.com"
                  : currentRecordType === "A"
                    ? "Required. E.g. 8.8.8.8"
                    : "Required."}
              </p>
            )}
          </div>
        </FormSectionColumns>
      </div>

      <div className="items-center justify-start gap-4 md:flex">
        <FormSectionColumns title="TTL">
          <Select
            onValueChange={(value: string) => {
              setValue("ttl", Number(value));
            }}
            name="ttl"
            defaultValue={String(initData?.ttl || 1)}
          >
            <SelectTrigger className="w-full shadow-inner">
              <SelectValue placeholder="Select a time" />
            </SelectTrigger>
            <SelectContent>
              {TTL_ENUMS.map((ttl) => (
                <SelectItem key={ttl.value} value={ttl.value}>
                  {ttl.label}
                </SelectItem>
              ))}
            </SelectContent>
          </Select>
          <p className="p-1 text-[13px] text-muted-foreground">
            Optional. Time To Live.
          </p>
        </FormSectionColumns>
        <FormSectionColumns title="Comment">
          <div className="flex items-center gap-2">
            <Label className="sr-only" htmlFor="comment">
              Comment
            </Label>
            <Input
              id="comment"
              className="flex-2 shadow-inner"
              size={74}
              {...register("comment")}
            />
          </div>
          <p className="p-1 text-[13px] text-muted-foreground">
            Enter your comment here (up to 100 characters)
          </p>
        </FormSectionColumns>
        {/* <FormSectionColumns title="Proxy">
          <div className="flex w-full items-center gap-2">
            <Label className="sr-only" htmlFor="proxy">
              Proxy
            </Label>
            <Switch id="proxied" {...register("proxied")} />
          </div>
          <p className="p-1 text-[13px] text-muted-foreground">Proxy status</p>
        </FormSectionColumns> */}
      </div>

      {/* Action buttons */}
      <div className="mt-3 flex justify-end gap-3">
        {type === "edit" && (
          <Button
            type="button"
            variant="destructive"
            className="mr-auto w-[80px] px-0"
            onClick={() => handleDeleteRecord()}
            disabled={isDeleting}
          >
            {isDeleting ? (
              <Icons.spinner className="size-4 animate-spin" />
            ) : (
              <p>Delete</p>
            )}
          </Button>
        )}
        <Button
          type="reset"
          variant="outline"
          className="w-[80px] px-0"
          onClick={() => setShowForm(false)}
        >
          Cancle
        </Button>
        <Button
          type="submit"
          variant="blue"
          disabled={isPending}
          className="w-[80px] shrink-0 px-0"
        >
          {isPending ? (
            <Icons.spinner className="size-4 animate-spin" />
          ) : (
            <p>{type === "edit" ? "Update" : "Save"}</p>
          )}
        </Button>
      </div>
    </form>
  );
}