devist 0.15.0

import { supabase } from "@/lib/supabase";
import type { Session } from "@supabase/supabase-js";
import { type ReactNode, createContext, useContext, useEffect, useState } from "react";

type AuthResult = { error: Error | null };
type SignUpResult = AuthResult & { needsConfirmation?: boolean };

type AuthState = {
  session: Session | null;
  loading: boolean;
  signIn: (email: string, password: string) => Promise<AuthResult>;
  signUp: (email: string, password: string) => Promise<SignUpResult>;
  signOut: () => Promise<void>;
};

const AuthContext = createContext<AuthState | null>(null);

export function AuthProvider({ children }: { children: ReactNode }) {
  const [session, setSession] = useState<Session | null>(null);
  const [loading, setLoading] = useState(true);

  useEffect(() => {
    if (!supabase) {
      setLoading(false);
      return;
    }
    supabase.auth.getSession().then(({ data }) => {
      setSession(data.session);
      setLoading(false);
    });
    const { data: sub } = supabase.auth.onAuthStateChange((_event, s) => {
      setSession(s);
    });
    return () => sub.subscription.unsubscribe();
  }, []);

  const signIn = async (email: string, password: string): Promise<AuthResult> => {
    if (!supabase) return { error: new Error("Supabase not configured") };
    const { error } = await supabase.auth.signInWithPassword({ email, password });
    return { error };
  };

  const signUp = async (email: string, password: string): Promise<SignUpResult> => {
    if (!supabase) return { error: new Error("Supabase not configured") };
    const { data, error } = await supabase.auth.signUp({
      email,
      password,
      options: { emailRedirectTo: window.location.origin },
    });
    // If Supabase's "Confirm email" setting is on, no session is returned —
    // the user must click the link in the confirmation email first.
    return { error, needsConfirmation: !error && !data.session };
  };

  const signOut = async () => {
    if (!supabase) return;
    await supabase.auth.signOut();
  };

  return (
    <AuthContext.Provider value={{ session, loading, signIn, signUp, signOut }}>
      {children}
    </AuthContext.Provider>
  );
}

export function useAuth() {
  const ctx = useContext(AuthContext);
  if (!ctx) throw new Error("useAuth must be used inside AuthProvider");
  return ctx;
}