package v1

import (
	"bytes"
	"encoding/json"
	"fmt"
	"net/http"
	"net/http/httptest"
	"testing"

	"github.com/gin-gonic/gin"
	"github.com/gochat/gochat/internal/model"
	"github.com/gochat/gochat/internal/repository"
	"github.com/gochat/gochat/internal/service"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/suite"
	"gorm.io/driver/sqlite"
	"gorm.io/gorm"
	"gorm.io/gorm/logger"
)

type AgentBotHandlerTestSuite struct {
	suite.Suite
	db      *gorm.DB
	handler *AgentBotHandler

	account *model.Account
	user    *model.User
}

func (s *AgentBotHandlerTestSuite) SetupSuite() {
	gin.SetMode(gin.TestMode)
	db, err := gorm.Open(sqlite.Open("file::memory:"), &gorm.Config{
		Logger: logger.Default.LogMode(logger.Silent),
	})
	s.Require().NoError(err)
	s.Require().NoError(db.AutoMigrate(&model.Account{}, &model.User{}, &model.AgentBot{}, &model.AgentBotInbox{}))
	s.db = db

	repo := repository.NewAgentBotRepo(db)
	svc := service.NewAgentBotService(repo)
	s.handler = NewAgentBotHandler(svc)

	s.account = &model.Account{Name: "test-agent-bot-account"}
	s.db.Create(s.account)
	s.user = &model.User{Name: "test-agent-bot-user", Email: "bot@example.com"}
	s.db.Create(s.user)
}

func (s *AgentBotHandlerTestSuite) TearDownSuite() {
	if s.db != nil {
		sqlDB, _ := s.db.DB()
		sqlDB.Close()
	}
}

func TestAgentBotHandlerSuite(t *testing.T) {
	suite.Run(t, new(AgentBotHandlerTestSuite))
}

func (s *AgentBotHandlerTestSuite) TestPlatformList() {
	r := gin.New()
	r.GET("/platform/api/v1/agent_bots", s.handler.PlatformList)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", "/platform/api/v1/agent_bots", nil)
	r.ServeHTTP(w, req)

	assert.Equal(s.T(), http.StatusOK, w.Code)
}

func (s *AgentBotHandlerTestSuite) TestPlatformCreate_Success() {
	r := gin.New()
	r.POST("/platform/api/v1/agent_bots", s.handler.PlatformCreate)

	body := map[string]interface{}{
		"name":        "test-global-bot",
		"bot_type":    "webhook",
		"outgoing_url": "https://example.com/webhook",
	}
	b, _ := json.Marshal(body)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", "/platform/api/v1/agent_bots", bytes.NewBuffer(b))
	req.Header.Set("Content-Type", "application/json")
	r.ServeHTTP(w, req)

	assert.Equal(s.T(), http.StatusCreated, w.Code)
}

func (s *AgentBotHandlerTestSuite) TestPlatformCreate_BadRequest() {
	r := gin.New()
	r.POST("/platform/api/v1/agent_bots", s.handler.PlatformCreate)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", "/platform/api/v1/agent_bots", nil)
	req.Header.Set("Content-Type", "application/json")
	r.ServeHTTP(w, req)

	assert.Equal(s.T(), http.StatusBadRequest, w.Code)
}

func (s *AgentBotHandlerTestSuite) TestAccountList() {
	r := gin.New()
	r.GET("/api/v1/accounts/:account_id/agent_bots", s.handler.List)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", fmt.Sprintf("/api/v1/accounts/%d/agent_bots", s.account.ID), nil)
	r.ServeHTTP(w, req)

	assert.Equal(s.T(), http.StatusOK, w.Code)
}

func (s *AgentBotHandlerTestSuite) TestAccountCreate_Success() {
	r := gin.New()
	r.POST("/api/v1/accounts/:account_id/agent_bots", s.handler.Create)

	body := map[string]interface{}{
		"name":        "test-account-bot",
		"bot_type":    "webhook",
		"outgoing_url": "https://example.com/webhook",
	}
	b, _ := json.Marshal(body)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", fmt.Sprintf("/api/v1/accounts/%d/agent_bots", s.account.ID), bytes.NewBuffer(b))
	req.Header.Set("Content-Type", "application/json")
	r.ServeHTTP(w, req)

	assert.Equal(s.T(), http.StatusCreated, w.Code)
}

func (s *AgentBotHandlerTestSuite) TestAccountCreate_BadRequest() {
	r := gin.New()
	r.POST("/api/v1/accounts/:account_id/agent_bots", s.handler.Create)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", fmt.Sprintf("/api/v1/accounts/%d/agent_bots", s.account.ID), nil)
	req.Header.Set("Content-Type", "application/json")
	r.ServeHTTP(w, req)

	assert.Equal(s.T(), http.StatusBadRequest, w.Code)
}

func (s *AgentBotHandlerTestSuite) TestAccountGet_NotFound() {
	r := gin.New()
	r.GET("/api/v1/accounts/:account_id/agent_bots/:agent_bot_id", s.handler.Get)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", fmt.Sprintf("/api/v1/accounts/%d/agent_bots/99999", s.account.ID), nil)
	r.ServeHTTP(w, req)

	assert.Equal(s.T(), http.StatusNotFound, w.Code)
}

func (s *AgentBotHandlerTestSuite) TestPlatformGet_NotFound() {
	r := gin.New()
	r.GET("/platform/api/v1/agent_bots/:agent_bot_id", s.handler.PlatformGet)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", "/platform/api/v1/agent_bots/99999", nil)
	r.ServeHTTP(w, req)

	assert.Equal(s.T(), http.StatusNotFound, w.Code)
}

func (s *AgentBotHandlerTestSuite) TestUpdate_BadRequest() {
	r := gin.New()
	r.PUT("/api/v1/accounts/:account_id/agent_bots/:agent_bot_id", s.handler.Update)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("PUT", fmt.Sprintf("/api/v1/accounts/%d/agent_bots/abc", s.account.ID), nil)
	req.Header.Set("Content-Type", "application/json")
	r.ServeHTTP(w, req)

	assert.Equal(s.T(), http.StatusBadRequest, w.Code)
}

func (s *AgentBotHandlerTestSuite) TestDelete_BadRequest() {
	r := gin.New()
	r.DELETE("/api/v1/accounts/:account_id/agent_bots/:agent_bot_id", s.handler.Delete)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("DELETE", fmt.Sprintf("/api/v1/accounts/%d/agent_bots/abc", s.account.ID), nil)
	r.ServeHTTP(w, req)

	assert.Equal(s.T(), http.StatusBadRequest, w.Code)
}

func (s *AgentBotHandlerTestSuite) TestResetToken_BadRequest() {
	r := gin.New()
	r.POST("/api/v1/accounts/:account_id/agent_bots/:agent_bot_id/reset_token", s.handler.ResetToken)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", fmt.Sprintf("/api/v1/accounts/%d/agent_bots/abc/reset_token", s.account.ID), nil)
	r.ServeHTTP(w, req)

	assert.Equal(s.T(), http.StatusBadRequest, w.Code)
}

func (s *AgentBotHandlerTestSuite) TestResetSecret_BadRequest() {
	r := gin.New()
	r.POST("/api/v1/accounts/:account_id/agent_bots/:agent_bot_id/reset_secret", s.handler.ResetSecret)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", fmt.Sprintf("/api/v1/accounts/%d/agent_bots/abc/reset_secret", s.account.ID), nil)
	r.ServeHTTP(w, req)

	assert.Equal(s.T(), http.StatusBadRequest, w.Code)
}

func (s *AgentBotHandlerTestSuite) TestDeleteAvatar_BadRequest() {
	r := gin.New()
	r.DELETE("/api/v1/accounts/:account_id/agent_bots/:agent_bot_id/avatar", s.handler.DeleteAvatar)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("DELETE", fmt.Sprintf("/api/v1/accounts/%d/agent_bots/abc/avatar", s.account.ID), nil)
	r.ServeHTTP(w, req)

	assert.Equal(s.T(), http.StatusBadRequest, w.Code)
}