package historystore

import (
	"testing"

	"github.com/mariocandela/beelzebub/v3/plugins"
	"github.com/stretchr/testify/assert"
)

func TestNewHistoryStore(t *testing.T) {
	hs := NewHistoryStore()
	assert.NotNil(t, hs)
	assert.NotNil(t, hs.sessions)
}

func TestHasKey(t *testing.T) {
	hs := NewHistoryStore()
	hs.sessions["testKey"] = []plugins.Message{}
	assert.True(t, hs.HasKey("testKey"))
	assert.False(t, hs.HasKey("nonExistentKey"))
}

func TestQuery(t *testing.T) {
	hs := NewHistoryStore()
	expectedMessages := []plugins.Message{{Role: "user", Content: "Hello"}}
	hs.sessions["testKey"] = expectedMessages
	actualMessages := hs.Query("testKey")
	assert.Equal(t, expectedMessages, actualMessages)
}

func TestAppend(t *testing.T) {
	hs := NewHistoryStore()
	message1 := plugins.Message{Role: "user", Content: "Hello"}
	message2 := plugins.Message{Role: "assistant", Content: "Hi"}
	hs.Append("testKey", message1)
	assert.Equal(t, []plugins.Message{message1}, hs.sessions["testKey"])
	hs.Append("testKey", message2)
	assert.Equal(t, []plugins.Message{message1, message2}, hs.sessions["testKey"])
}

func TestAppendNilSessions(t *testing.T) {
	hs := &HistoryStore{}
	message1 := plugins.Message{Role: "user", Content: "Hello"}
	hs.Append("testKey", message1)
	assert.NotNil(t, hs.sessions)
	assert.Equal(t, []plugins.Message{message1}, hs.sessions["testKey"])
}