package config

import "testing"

func TestAllEmailAccounts_Empty(t *testing.T) {
	orig := Cfg
	defer func() { Cfg = orig }()
	Cfg = Config{}

	accounts := AllEmailAccounts()
	if len(accounts) != 0 {
		t.Errorf("erwartet 0 Accounts, got %d", len(accounts))
	}
}

func TestAllEmailAccounts_LegacyFallback(t *testing.T) {
	orig := Cfg
	defer func() { Cfg = orig }()
	Cfg = Config{}
	Cfg.Email.Host = "imap.example.de"
	Cfg.Email.Port = 143
	Cfg.Email.User = "user@example.de"
	Cfg.Email.Password = "geheim"
	Cfg.Email.Folder = "INBOX"
	Cfg.Email.ProcessedFolder = "Processed"
	Cfg.Email.Model = "testmodel"

	accounts := AllEmailAccounts()
	if len(accounts) != 1 {
		t.Fatalf("erwartet 1 Account, got %d", len(accounts))
	}
	a := accounts[0]
	if a.Host != "imap.example.de" {
		t.Errorf("Host: got %q", a.Host)
	}
	if a.Port != 143 {
		t.Errorf("Port: got %d", a.Port)
	}
	if a.User != "user@example.de" {
		t.Errorf("User: got %q", a.User)
	}
	if a.ProcessedFolder != "Processed" {
		t.Errorf("ProcessedFolder: got %q", a.ProcessedFolder)
	}
	if a.Model != "testmodel" {
		t.Errorf("Model: got %q", a.Model)
	}
}

func TestAllEmailAccounts_MultipleAccounts(t *testing.T) {
	orig := Cfg
	defer func() { Cfg = orig }()
	Cfg = Config{}
	Cfg.EmailAccounts = []EmailAccount{
		{Name: "Privat", Host: "imap1.de", Port: 143},
		{Name: "Arbeit", Host: "imap2.de", Port: 993, TLS: true},
	}

	accounts := AllEmailAccounts()
	if len(accounts) != 2 {
		t.Fatalf("erwartet 2 Accounts, got %d", len(accounts))
	}
	if accounts[0].Host != "imap1.de" {
		t.Errorf("Account 0 Host: got %q", accounts[0].Host)
	}
	if accounts[1].Host != "imap2.de" {
		t.Errorf("Account 1 Host: got %q", accounts[1].Host)
	}
}

func TestAllEmailAccounts_NewTakesPrecedence(t *testing.T) {
	orig := Cfg
	defer func() { Cfg = orig }()
	Cfg = Config{}
	Cfg.Email.Host = "legacy.de"
	Cfg.EmailAccounts = []EmailAccount{
		{Name: "Neu", Host: "new.de"},
	}

	accounts := AllEmailAccounts()
	if len(accounts) != 1 {
		t.Fatalf("erwartet 1 Account, got %d", len(accounts))
	}
	if accounts[0].Host != "new.de" {
		t.Errorf("email_accounts sollte Vorrang haben, got host %q", accounts[0].Host)
	}
}