package ws

import (
	"encoding/json"
	"testing"

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

// === Event type constants tests ===
// Verify all Chatwoot-style dot-separated event naming conventions.

func TestMessageEventConstants(t *testing.T) {
	assert.Equal(t, "message.created", EventMessageCreated)
	assert.Equal(t, "message.updated", EventMessageUpdated)
	assert.Equal(t, "message.deleted", EventMessageDeleted)
}

func TestConversationEventConstants(t *testing.T) {
	assert.Equal(t, "conversation.created", EventConversationCreated)
	assert.Equal(t, "conversation.updated", EventConversationUpdated)
	assert.Equal(t, "conversation.resolved", EventConversationResolved)
	assert.Equal(t, "conversation.opened", EventConversationOpened)
	assert.Equal(t, "conversation.assigned", EventConversationAssigned)
	assert.Equal(t, "conversation.unassigned", EventConversationUnassigned)
	assert.Equal(t, "conversation.status_changed", EventConversationStatusChanged)
	assert.Equal(t, "conversation.typing_on", EventConversationTypingOn)
	assert.Equal(t, "conversation.typing_off", EventConversationTypingOff)
	assert.Equal(t, "conversation.mentioned", EventConversationMentioned)
	assert.Equal(t, "conversation.read", EventConversationRead)
}

func TestContactEventConstants(t *testing.T) {
	assert.Equal(t, "contact.created", EventContactCreated)
	assert.Equal(t, "contact.updated", EventContactUpdated)
	assert.Equal(t, "contact.deleted", EventContactDeleted)
	assert.Equal(t, "contact.merged", EventContactMerged)
}

func TestInboxEventConstants(t *testing.T) {
	assert.Equal(t, "inbox.created", EventInboxCreated)
	assert.Equal(t, "inbox.updated", EventInboxUpdated)
	assert.Equal(t, "inbox.deleted", EventInboxDeleted)
}

func TestNotificationEventConstants(t *testing.T) {
	assert.Equal(t, "notification.created", EventNotificationCreated)
	assert.Equal(t, "notification.updated", EventNotificationUpdated)
	assert.Equal(t, "notification.deleted", EventNotificationDeleted)
}

func TestPresenceEventConstants(t *testing.T) {
	assert.Equal(t, "presence.update", EventPresenceUpdate)
	assert.Equal(t, "account.cache_invalidated", EventAccountCacheInvalidated)
}

func TestAgentTypingEventConstants(t *testing.T) {
	assert.Equal(t, "agent.typing_on", EventAgentTypingOn)
	assert.Equal(t, "agent.typing_off", EventAgentTypingOff)
	assert.Equal(t, "agent.online", EventAgentOnline)
	assert.Equal(t, "agent.offline", EventAgentOffline)
}

func TestProtocolControlConstants(t *testing.T) {
	assert.Equal(t, "subscribe.confirm", EventSubscribeConfirm)
	assert.Equal(t, "unsubscribe.confirm", EventUnsubscribeConfirm)
	assert.Equal(t, "subscribe.reject", EventSubscribeReject)
	assert.Equal(t, "ping.response", EventPingResponse)
	assert.Equal(t, "welcome", EventWelcome)
	assert.Equal(t, "disconnect", EventDisconnect)
}

func TestEventNamingConvention_DotSeparated(t *testing.T) {
	// All business events should follow Chatwoot's resource.action naming
	events := []string{
		EventMessageCreated, EventMessageUpdated, EventMessageDeleted,
		EventConversationCreated, EventConversationUpdated, EventConversationResolved,
		EventContactCreated, EventContactUpdated, EventContactDeleted, EventContactMerged,
		EventInboxCreated, EventInboxUpdated, EventInboxDeleted,
		EventNotificationCreated, EventNotificationUpdated, EventNotificationDeleted,
		EventPresenceUpdate, EventAccountCacheInvalidated,
		EventAgentTypingOn, EventAgentTypingOff, EventAgentOnline, EventAgentOffline,
	}
	for _, event := range events {
		assert.Contains(t, event, ".", "event %s should follow resource.action naming", event)
	}
}

// === WSMessage struct tests ===

func TestWSMessage_MarshalUnmarshal(t *testing.T) {
	msg := WSMessage{
		Event:     EventMessageCreated,
		Data:      map[string]interface{}{"id": 1, "content": "hello"},
		AccountID: 100,
	}
	data, err := json.Marshal(msg)
	assert.NoError(t, err)
	assert.Contains(t, string(data), "message.created")
	assert.Contains(t, string(data), "account_id")

	var decoded WSMessage
	err = json.Unmarshal(data, &decoded)
	assert.NoError(t, err)
	assert.Equal(t, EventMessageCreated, decoded.Event)
	assert.Equal(t, uint(100), decoded.AccountID)
}

func TestWSMessage_WithPerformer(t *testing.T) {
	msg := WSMessage{
		Event: EventConversationUpdated,
		Data:  map[string]interface{}{"status": "resolved"},
		Performer: &Performer{
			ID:        1,
			Name:      "Agent Smith",
			Type:      "user",
			AvatarURL: "https://example.com/avatar.png",
		},
	}
	data, err := json.Marshal(msg)
	assert.NoError(t, err)
	assert.Contains(t, string(data), "performer")
	assert.Contains(t, string(data), "Agent Smith")
}

// === WSCommand struct tests ===

func TestWSCommand_MarshalUnmarshal(t *testing.T) {
	cmd := WSCommand{
		Command: "subscribe",
		Data:    `{"channel":"AccountChannel","account_id":100}`,
	}
	data, err := json.Marshal(cmd)
	assert.NoError(t, err)

	var decoded WSCommand
	err = json.Unmarshal(data, &decoded)
	assert.NoError(t, err)
	assert.Equal(t, "subscribe", decoded.Command)
}

func TestWSCommand_CommandTypes(t *testing.T) {
	commands := []string{"subscribe", "unsubscribe", "ping", "typing_on", "typing_off", "update_presence"}
	for _, cmd := range commands {
		wsCmd := WSCommand{Command: cmd}
		assert.Equal(t, cmd, wsCmd.Command)
	}
}

// === WSClaims struct tests ===

func TestWSClaims_UserAuth(t *testing.T) {
	claims := WSClaims{
		UserID:    1,
		AccountID: 100,
		Role:      "agent",
		Provider:  "email",
		IsContact: false,
	}
	assert.Equal(t, uint(1), claims.UserID)
	assert.Equal(t, uint(100), claims.AccountID)
	assert.Equal(t, "agent", claims.Role)
	assert.False(t, claims.IsContact)
}

func TestWSClaims_ContactAuth(t *testing.T) {
	claims := WSClaims{
		AccountID:   100,
		Role:        "contact",
		Provider:    "pubsub_token",
		PubsubToken: "abc123",
		IsContact:   true,
		ContactID:   50,
		InboxID:     10,
	}
	assert.True(t, claims.IsContact)
	assert.Equal(t, uint(50), claims.ContactID)
	assert.Equal(t, uint(10), claims.InboxID)
	assert.NotEmpty(t, claims.PubsubToken)
}

// === SubscribeData struct tests ===

func TestSubscribeData_AccountChannel(t *testing.T) {
	sd := SubscribeData{
		Channel:   "AccountChannel",
		AccountID: 100,
	}
	assert.Equal(t, "AccountChannel", sd.Channel)
	assert.Equal(t, uint(100), sd.AccountID)
}

func TestSubscribeData_ConversationChannel(t *testing.T) {
	sd := SubscribeData{
		Channel:        "ConversationChannel",
		AccountID:      100,
		ConversationID: 42,
	}
	assert.Equal(t, "ConversationChannel", sd.Channel)
	assert.Equal(t, uint(42), sd.ConversationID)
}

func TestSubscribeData_ContactAuth(t *testing.T) {
	sd := SubscribeData{
		Channel:     "ConversationChannel",
		AccountID:   100,
		PubsubToken: "token_abc",
		ConversationID: 42,
	}
	assert.NotEmpty(t, sd.PubsubToken)
}

// === TypingData struct tests ===

func TestTypingData(t *testing.T) {
	td := TypingData{
		ConversationID: 42,
		AccountID:      100,
	}
	assert.Equal(t, uint(42), td.ConversationID)
	assert.Equal(t, uint(100), td.AccountID)
}

// === Performer struct tests ===

func TestPerformer_UserType(t *testing.T) {
	p := Performer{
		ID:        1,
		Name:      "Agent One",
		Type:      "user",
		AvatarURL: "https://example.com/avatar1.png",
	}
	assert.Equal(t, "user", p.Type)
}

func TestPerformer_ContactType(t *testing.T) {
	p := Performer{
		ID:        50,
		Name:      "Contact Five",
		Type:      "contact",
		AvatarURL: "",
	}
	assert.Equal(t, "contact", p.Type)
}