package autoassignment

import (
	"testing"

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

// --- Constructor tests ---

func TestNewRateLimiter(t *testing.T) {
	rl := NewRateLimiter(nil)
	assert.NotNil(t, rl)
}

func TestNewRoundRobinSelector(t *testing.T) {
	rr := NewRoundRobinSelector(nil)
	assert.NotNil(t, rr)
}

func TestNewLowestLoadSelector(t *testing.T) {
	ll := NewLowestLoadSelector(nil)
	assert.NotNil(t, ll)
}

func TestNewAssignmentService(t *testing.T) {
	s := NewAssignmentService(nil, nil)
	assert.NotNil(t, s)
}

// --- Model tests ---

func TestConversationQueryModel_TableName(t *testing.T) {
	m := ConversationQueryModel{}
	assert.NotEmpty(t, m.TableName())
}

func TestAssignmentPolicyType_Constants(t *testing.T) {
	assert.Equal(t, "round_robin", string(PolicyRoundRobin))
	assert.Equal(t, "longest_waiting", string(PolicyLongestWaiting))
	assert.Equal(t, "lowest_load", string(PolicyLowestLoad))
}

// --- RateLimiter key test ---

func TestRateLimiter_Key(t *testing.T) {
	rl := NewRateLimiter(nil)
	key := rl.key(1, 2, 300)
	assert.Contains(t, key, "gochat:auto_assignment_rate:")
	assert.Contains(t, key, "1")
	assert.Contains(t, key, "2")
}

// --- RoundRobinSelector key test ---

func TestRoundRobinSelector_Key(t *testing.T) {
	rr := NewRoundRobinSelector(nil)
	key := rr.key(42)
	assert.Equal(t, "gochat:round_robin:42", key)
}