package v1

import (
	"bytes"
	"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 CustomRoleHandlerTestSuite struct {
	suite.Suite
	db      *gorm.DB
	handler *CustomRoleHandler
	account *model.Account
}

func (s *CustomRoleHandlerTestSuite) 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.CustomRole{}))
	s.db = db

	repo := repository.NewCustomRoleRepo(db)
	svc := service.NewCustomRoleService(repo)
	s.handler = NewCustomRoleHandler(svc)

	s.account = &model.Account{Name: "test-custom-role-account"}
	s.Require().NoError(db.Create(s.account).Error)
}

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

func TestCustomRoleHandlerSuite(t *testing.T) {
	suite.Run(t, new(CustomRoleHandlerTestSuite))
}

func (s *CustomRoleHandlerTestSuite) TestList_Success() {
	r := gin.New()
	r.GET("/api/v1/accounts/:account_id/custom_roles", s.handler.List)

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

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

func (s *CustomRoleHandlerTestSuite) TestCreate_BadRequest_EmptyBody() {
	r := gin.New()
	r.POST("/api/v1/accounts/:account_id/custom_roles", s.handler.Create)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", fmt.Sprintf("/api/v1/accounts/%d/custom_roles", 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 *CustomRoleHandlerTestSuite) TestGet_BadRequest_InvalidID() {
	r := gin.New()
	r.GET("/api/v1/accounts/:account_id/custom_roles/:id", s.handler.Get)

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

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

func (s *CustomRoleHandlerTestSuite) TestUpdate_BadRequest_InvalidID() {
	r := gin.New()
	r.PUT("/api/v1/accounts/:account_id/custom_roles/:id", s.handler.Update)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("PUT", fmt.Sprintf("/api/v1/accounts/%d/custom_roles/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 *CustomRoleHandlerTestSuite) TestDelete_BadRequest_InvalidID() {
	r := gin.New()
	r.DELETE("/api/v1/accounts/:account_id/custom_roles/:id", s.handler.Delete)

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

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

func (s *CustomRoleHandlerTestSuite) TestCreate_Success() {
	r := gin.New()
	r.POST("/api/v1/accounts/:account_id/custom_roles", func(c *gin.Context) {
		c.Set("account_id", uint(s.account.ID))
		s.handler.Create(c)
	})

	w := httptest.NewRecorder()
	body := fmt.Sprintf(`{"custom_role":{"name":"test-role","permissions":{"conversation_manage":"full"}}}`)
	req, _ := http.NewRequest("POST", fmt.Sprintf("/api/v1/accounts/%d/custom_roles", s.account.ID), bytes.NewBufferString(body))
	req.Header.Set("Content-Type", "application/json")
	r.ServeHTTP(w, req)

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

func (s *CustomRoleHandlerTestSuite) TestGet_Success() {
	// Create a custom role first
	role := &model.CustomRole{AccountID: s.account.ID, Name: "get-test-role", Permissions: "inbox_read"}
	s.Require().NoError(s.db.Create(role).Error)

	r := gin.New()
	r.GET("/api/v1/accounts/:account_id/custom_roles/:id", s.handler.Get)

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

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

func (s *CustomRoleHandlerTestSuite) TestUpdate_Success() {
	role := &model.CustomRole{AccountID: s.account.ID, Name: "update-test-role", Permissions: "inbox_read"}
	s.Require().NoError(s.db.Create(role).Error)

	r := gin.New()
	r.PUT("/api/v1/accounts/:account_id/custom_roles/:id", func(c *gin.Context) {
		c.Set("account_id", uint(s.account.ID))
		s.handler.Update(c)
	})

	w := httptest.NewRecorder()
	body := fmt.Sprintf(`{"custom_role":{"name":"updated-role","permissions":{"conversation_manage":"full"}}}`)
	req, _ := http.NewRequest("PUT", fmt.Sprintf("/api/v1/accounts/%d/custom_roles/%d", s.account.ID, role.ID), bytes.NewBufferString(body))
	req.Header.Set("Content-Type", "application/json")
	r.ServeHTTP(w, req)

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

func (s *CustomRoleHandlerTestSuite) TestDelete_Success() {
	role := &model.CustomRole{AccountID: s.account.ID, Name: "delete-test-role", Permissions: "inbox_read"}
	s.Require().NoError(s.db.Create(role).Error)

	r := gin.New()
	r.DELETE("/api/v1/accounts/:account_id/custom_roles/:id", func(c *gin.Context) {
		c.Set("account_id", uint(s.account.ID))
		s.handler.Delete(c)
	})

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

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