package v1

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

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

type testMacroDBProvider struct {
	db *gorm.DB
}

func (p *testMacroDBProvider) DB() *gorm.DB { return p.db }

type MacroHandlerTestSuite struct {
	suite.Suite
	db      *gorm.DB
	handler *MacroHandler

	account *model.Account
	user    *model.User
}

func (s *MacroHandlerTestSuite) 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{}, &automation.Macro{}))
	s.db = db

	macroSvc := automation.NewMacroService(&testMacroDBProvider{db: db})
	s.handler = NewMacroHandler(macroSvc)

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

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

func TestMacroHandlerSuite(t *testing.T) {
	suite.Run(t, new(MacroHandlerTestSuite))
}

func (s *MacroHandlerTestSuite) TestList_Empty() {
	r := gin.New()
	r.GET("/api/v1/accounts/:account_id/macros", s.handler.List)

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

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

func (s *MacroHandlerTestSuite) TestCreate_Success() {
	r := gin.New()
	r.POST("/api/v1/accounts/:account_id/macros", func(c *gin.Context) {
		c.Set("user_id", float64(s.user.ID))
		c.Next()
	}, s.handler.Create)

	body := map[string]interface{}{
		"name":       "test-macro",
		"visibility": 0,
		"actions":    []map[string]interface{}{{"action_name": "assign_agent", "action_params": map[string]interface{}{"agent_id": "1"}}},
	}
	b, _ := json.Marshal(body)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", fmt.Sprintf("/api/v1/accounts/%d/macros", 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 *MacroHandlerTestSuite) TestCreate_BadRequest() {
	r := gin.New()
	r.POST("/api/v1/accounts/:account_id/macros", s.handler.Create)

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

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