package v1

import (
	"bytes"
	"net/http"
	"net/http/httptest"
	"testing"

	"github.com/gin-gonic/gin"
	"github.com/stretchr/testify/suite"

	"github.com/gochat/gochat/internal/service"
)

type ConversationInsightHandlerTestSuite struct {
	suite.Suite
	handler *ConversationInsightHandler
	router  *gin.Engine
}

func (s *ConversationInsightHandlerTestSuite) SetupSuite() {
	// Use nil/zero service for routing/param-validation tests
	svc := &service.ConversationInsightService{}
	s.handler = NewConversationInsightHandler(svc)

	gin.SetMode(gin.TestMode)
	r := gin.New()
	group := r.Group("/api/v1/accounts/:id")
	group.POST("/captain/insights/participants", s.handler.AnalyzeParticipants)
	group.POST("/captain/insights/action_items", s.handler.ExtractActionItems)
	group.POST("/captain/insights/label_suggestions", s.handler.SuggestLabels)
	s.router = r
}

func TestConversationInsightHandlerTestSuite(t *testing.T) {
	suite.Run(t, new(ConversationInsightHandlerTestSuite))
}

func (s *ConversationInsightHandlerTestSuite) TestAnalyzeParticipants_InvalidAccountID() {
	w := httptest.NewRecorder()
	req := httptest.NewRequest(http.MethodPost, "/api/v1/accounts/abc/captain/insights/participants", bytes.NewBufferString(`{"conversation_id":1}`))
	req.Header.Set("Content-Type", "application/json")
	s.router.ServeHTTP(w, req)
	s.Equal(http.StatusBadRequest, w.Code)
}

func (s *ConversationInsightHandlerTestSuite) TestAnalyzeParticipants_InvalidJSON() {
	w := httptest.NewRecorder()
	req := httptest.NewRequest(http.MethodPost, "/api/v1/accounts/1/captain/insights/participants", bytes.NewBufferString(`{invalid`))
	req.Header.Set("Content-Type", "application/json")
	s.router.ServeHTTP(w, req)
	s.Equal(http.StatusBadRequest, w.Code)
}



func (s *ConversationInsightHandlerTestSuite) TestExtractActionItems_InvalidAccountID() {
	w := httptest.NewRecorder()
	req := httptest.NewRequest(http.MethodPost, "/api/v1/accounts/abc/captain/insights/action_items", bytes.NewBufferString(`{"conversation_id":1}`))
	req.Header.Set("Content-Type", "application/json")
	s.router.ServeHTTP(w, req)
	s.Equal(http.StatusBadRequest, w.Code)
}

func (s *ConversationInsightHandlerTestSuite) TestExtractActionItems_InvalidJSON() {
	w := httptest.NewRecorder()
	req := httptest.NewRequest(http.MethodPost, "/api/v1/accounts/1/captain/insights/action_items", bytes.NewBufferString(`{invalid`))
	req.Header.Set("Content-Type", "application/json")
	s.router.ServeHTTP(w, req)
	s.Equal(http.StatusBadRequest, w.Code)
}

func (s *ConversationInsightHandlerTestSuite) TestSuggestLabels_InvalidAccountID() {
	w := httptest.NewRecorder()
	req := httptest.NewRequest(http.MethodPost, "/api/v1/accounts/abc/captain/insights/label_suggestions", bytes.NewBufferString(`{"conversation_id":1}`))
	req.Header.Set("Content-Type", "application/json")
	s.router.ServeHTTP(w, req)
	s.Equal(http.StatusBadRequest, w.Code)
}

func (s *ConversationInsightHandlerTestSuite) TestSuggestLabels_InvalidJSON() {
	w := httptest.NewRecorder()
	req := httptest.NewRequest(http.MethodPost, "/api/v1/accounts/1/captain/insights/label_suggestions", bytes.NewBufferString(`{invalid`))
	req.Header.Set("Content-Type", "application/json")
	s.router.ServeHTTP(w, req)
	s.Equal(http.StatusBadRequest, w.Code)
}