package client

import (
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestClient_Login(t *testing.T) {
	c := &Client{}
	err := c.Login("user@example.com", "password")
	assert.NoError(t, err)
}

func TestClient_Logout(t *testing.T) {
	c := &Client{}
	err := c.Logout()
	assert.NoError(t, err)
}

func TestClient_Select(t *testing.T) {
	c := &Client{}
	mbox, err := c.Select("INBOX", true)
	require.NoError(t, err)
	// stub returns nil mailbox
	assert.Nil(t, mbox)

	mbox2, err := c.Select("Sent", false)
	require.NoError(t, err)
	assert.Nil(t, mbox2)
}

func TestClient_List(t *testing.T) {
	c := &Client{}
	ch := make(chan interface{}, 10)
	err := c.List("", "*", ch)
	assert.NoError(t, err)
}

func TestClient_Search(t *testing.T) {
	c := &Client{}
	uids, err := c.Search(nil)
	require.NoError(t, err)
	assert.Nil(t, uids)
}

func TestClient_Fetch(t *testing.T) {
	c := &Client{}
	ch := make(chan interface{}, 10)
	err := c.Fetch(nil, nil, ch)
	assert.NoError(t, err)
}

func TestDial(t *testing.T) {
	c, err := Dial("imap.example.com:993")
	require.NoError(t, err)
	require.NotNil(t, c)
	assert.NotNil(t, c)
}

func TestDialTLS(t *testing.T) {
	c, err := DialTLS("imap.example.com:993", nil)
	require.NoError(t, err)
	require.NotNil(t, c)
}

func TestNewClient(t *testing.T) {
	c, err := NewClient(nil)
	require.NoError(t, err)
	require.NotNil(t, c)
}

func TestClient_AllMethods_NoError(t *testing.T) {
	c := &Client{
		State:      "authenticated",
		Mailboxes:  []interface{}{"INBOX", "Sent"},
		Updates:    make(chan interface{}, 1),
		ServerName: "test.example.com",
	}

	// Exercise all methods on a populated client
	require.NoError(t, c.Login("user", "pass"))
	require.NoError(t, c.Logout())

	mbox, err := c.Select("INBOX", true)
	require.NoError(t, err)
	assert.Nil(t, mbox)

	ch := make(chan interface{}, 5)
	require.NoError(t, c.List("", "*", ch))

	uids, err := c.Search(nil)
	require.NoError(t, err)
	assert.Nil(t, uids)

	require.NoError(t, c.Fetch(nil, nil, ch))
}