"use client";
import * as z from "zod";
import { zodResolver } from "@hookform/resolvers/zod";
import { useForm } from "react-hook-form";
import { useState } from "react";
import { useRouter } from "next/navigation";

import {
  Form,
  FormControl,
  FormDescription,
  FormField,
  FormItem,
  FormLabel,
  FormMessage,
} from "@/components/ui/form";
import {
  Dialog,
  DialogContent,
  DialogDescription,
  DialogHeader,
  DialogTitle,
  DialogTrigger,
} from "@/components/ui/dialog";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Badge } from "@/components/ui/badge";
import { X } from "lucide-react";
import { set } from "date-fns";

const formSchema = z.object({
  name: z.string().min(2, {
    message: "Name must be at least 2 characters.",
  }),
  description: z.string().min(2, {
    message: "Description must be at least 2 characters.",
  }),
  stack: z.array(z.string()).min(1, {
    message: "Project tech stack must have at least one item.",
  }),
});

export function CreateProject({ workspaceID }: { workspaceID: string }) {
  const form = useForm<z.infer<typeof formSchema>>({
    resolver: zodResolver(formSchema),
    defaultValues: {
      name: "",
      description: "",
      stack: [],
    },
  });

  const { setValue } = form;
  const [stackInput, setStackInput] = useState("");
  const [isLoading, setIsLoading] = useState(false);
  const router = useRouter();

  async function onSubmit(values: z.infer<typeof formSchema>) {
    try {
      setIsLoading(true);
      const res = await fetch(`/w/${workspaceID}/p`, {
        method: "POST",
        body: JSON.stringify(values),
      });

      console.log("===>", res);

      if (!res.ok) throw new Error("Something went wrong.");

      router.refresh();
      setIsLoading(false);
      return res;
    } catch (err) {
      setIsLoading(false);
      console.error(err);
    }
  }

  const keyHandler = (e: React.KeyboardEvent<HTMLInputElement>) => {
    if ((e.key === "Enter" || e.key === "Tab") && stackInput !== "") {
      e.preventDefault();
      setValue("stack", [...form.getValues("stack"), stackInput]);
      setStackInput("");
    }
  };

  return (
    <Dialog>
      <DialogTrigger asChild>
        <Button variant="outline">Create Project</Button>
      </DialogTrigger>
      <DialogContent>
        <DialogHeader>
          <DialogTitle>Create a Project</DialogTitle>
          <DialogDescription>
            Give your project a name, description, and tech stack.
          </DialogDescription>
        </DialogHeader>
        <Form {...form}>
          <form onSubmit={form.handleSubmit(onSubmit)} className="space-y-8">
            <FormField
              control={form.control}
              name="name"
              render={({ field }) => (
                <FormItem>
                  <FormLabel>Name</FormLabel>
                  <FormControl>
                    <Input placeholder="" {...field} />
                  </FormControl>
                  <FormDescription>This is your project name.</FormDescription>
                  <FormMessage />
                </FormItem>
              )}
            />
            <FormField
              control={form.control}
              name="description"
              render={({ field }) => (
                <FormItem>
                  <FormLabel>Description</FormLabel>
                  <FormControl>
                    <Input placeholder="" {...field} />
                  </FormControl>
                  <FormDescription>
                    This is your project description.
                  </FormDescription>
                  <FormMessage />
                </FormItem>
              )}
            />
            <FormField
              control={form.control}
              name="stack"
              render={() => (
                <FormItem>
                  <FormLabel>Tech Stack</FormLabel>
                  <FormControl>
                    <Input
                      value={stackInput}
                      onChange={(e) => setStackInput(e.target.value)}
                      onKeyDown={keyHandler}
                    />
                  </FormControl>
                  <FormDescription>
                    This is your project tech stack.
                  </FormDescription>
                  <div>
                    {form.getValues("stack").map((stack) => (
                      <Badge
                        key={stack}
                        className="mr-2 font-normal rounded-md"
                        variant="outline"
                      >
                        <span className="mr-1">{stack}</span>
                        <X
                          className="inline font-light text-red-500"
                          size={16}
                          onClick={() =>
                            setValue(
                              "stack",
                              form.getValues("stack").filter((s) => s !== stack)
                            )
                          }
                        />
                      </Badge>
                    ))}
                  </div>
                  <FormMessage />
                </FormItem>
              )}
            />
            <Button type="submit" disabled={isLoading}>
              {isLoading ? "Generating Features..." : "Submit"}
            </Button>
          </form>
        </Form>
      </DialogContent>
    </Dialog>
  );
}