package services

import (
	"testing"

	"nearle/models"
)

/*
An account that is created perfectly and cannot sign in.

`weblogin` matches `WHERE authname = ? AND configid = ?`. A form that sends an
email and a name — which is every form in this console — produces a row with an
empty authname and a configid of 0, so the sign-in query matches nothing and
answers "we do not recognise that email".

Observed on 1 Sep 2026: a merchant added their own administrator through the
console, saw it succeed, saw it listed, and was refused at the login screen.
*/

func TestANewAccountCanActuallySignIn(t *testing.T) {
	ready := PrepareNewAccount(models.User{Email: "thiruomart@gmail.com"})

	if ready.Authname != "thiruomart@gmail.com" {
		t.Errorf("authname was not derived from the email: %q", ready.Authname)
	}
	if ready.Configid != ConsoleConfigID {
		t.Errorf("configid = %d, want %d — 0 matches no console account", ready.Configid, ConsoleConfigID)
	}
}

// A caller with its own sign-in name keeps it. Deriving from the email is a
// fallback for forms that do not ask, not a rule that overwrites an answer.
func TestAnExplicitSignInNameIsKept(t *testing.T) {
	ready := PrepareNewAccount(models.User{Authname: "suriya.nsn", Email: "suriya@example.com"})
	if ready.Authname != "suriya.nsn" {
		t.Errorf("an explicit authname was overwritten with %q", ready.Authname)
	}
}

func TestAnExplicitConfigIsKept(t *testing.T) {
	ready := PrepareNewAccount(models.User{Email: "a@b.com", Configid: 4})
	if ready.Configid != 4 {
		t.Errorf("configid = %d, want the caller's 4", ready.Configid)
	}
}

// Whitespace around a pasted email would become an authname nothing can match —
// the same invisible failure, one space wide.
func TestASurroundingSpaceDoesNotBecomePartOfTheSignInName(t *testing.T) {
	ready := PrepareNewAccount(models.User{Email: "  thiru@omart.com  "})
	if ready.Authname != "thiru@omart.com" {
		t.Errorf("authname = %q, want it trimmed", ready.Authname)
	}
}

// An account with no email at all cannot be given a sign-in name, and must not
// be given a blank one that looks like it has been handled.
func TestNoEmailLeavesTheSignInNameEmpty(t *testing.T) {
	ready := PrepareNewAccount(models.User{})
	if ready.Authname != "" {
		t.Errorf("authname = %q, want empty", ready.Authname)
	}
}