"use client";

import { useRef, useState } from "react";
import { useRouter } from "next/navigation";
import { toast } from "sonner";
import { SetupHeader, FieldLabel, TextInput, PrimaryButton, type SetupProps } from "./setup-shared";

export function FreshIdeaSetup({ workspace, onClose, onBack }: SetupProps) {
  const router = useRouter();
  const [name, setName] = useState("");
  const [description, setDescription] = useState("");
  const [loading, setLoading] = useState(false);
  const nameRef = useRef<HTMLInputElement>(null);

  const canCreate = name.trim().length > 0;

  const handleCreate = async () => {
    if (!canCreate) return;
    setLoading(true);
    try {
      const res = await fetch("/api/projects/create", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify({
          projectName: name.trim(),
          projectType: "web-app",
          slug: name.toLowerCase().replace(/[^a-z0-9]+/g, "-"),
          product: { name: name.trim() },
          creationMode: "fresh",
          sourceData: { description: description.trim() },
        }),
      });
      if (!res.ok) {
        const err = await res.json();
        toast.error(err.error || "Failed to create project");
        return;
      }
      const data = await res.json();
      onClose();
      router.push(`/${workspace}/project/${data.projectId}/overview`);
    } catch {
      toast.error("Something went wrong");
    } finally {
      setLoading(false);
    }
  };

  return (
    <div style={{ padding: "32px 36px 36px" }}>
      <SetupHeader
        icon="✦" label="Fresh Idea" tagline="Start from scratch"
        accent="#4a3728" onBack={onBack} onClose={onClose}
      />

      <FieldLabel>Project name</FieldLabel>
      <TextInput
        value={name}
        onChange={setName}
        placeholder="e.g. Foxglove, Meridian, OpsAI…"
        onKeyDown={e => { if (e.key === "Enter" && canCreate) handleCreate(); }}
        inputRef={nameRef}
        autoFocus
      />

      <FieldLabel>One-line description <span style={{ color: "#b5b0a6", fontWeight: 400 }}>(optional)</span></FieldLabel>
      <input
        type="text"
        value={description}
        onChange={e => setDescription(e.target.value)}
        placeholder="A short description to kick off the conversation"
        style={{
          width: "100%", padding: "11px 14px", marginBottom: 20,
          borderRadius: 8, border: "1px solid #e0dcd4",
          background: "#faf8f5", fontSize: "0.9rem",
          fontFamily: "Outfit, sans-serif", color: "#1a1a1a",
          outline: "none", boxSizing: "border-box",
        }}
        onFocus={e => (e.currentTarget.style.borderColor = "#1a1a1a")}
        onBlur={e => (e.currentTarget.style.borderColor = "#e0dcd4")}
      />

      <div style={{ fontSize: "0.75rem", color: "#a09a90", marginBottom: 20, lineHeight: 1.5, padding: "12px 14px", background: "#faf8f5", borderRadius: 8, border: "1px solid #f0ece4" }}>
        Vibn will guide you through 6 discovery phases — Big Picture, Users, Features, Business Model, Screens, and Risks — building your product plan as you go.
      </div>

      <PrimaryButton onClick={handleCreate} disabled={!canCreate} loading={loading}>
        Start with Vibn →
      </PrimaryButton>
    </div>
  );
}
