package integration

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

	"github.com/break/junhong_cmp_fiber/internal/bootstrap"
	internalMiddleware "github.com/break/junhong_cmp_fiber/internal/middleware"
	"github.com/break/junhong_cmp_fiber/internal/model"
	"github.com/break/junhong_cmp_fiber/internal/routes"
	"github.com/break/junhong_cmp_fiber/pkg/auth"
	"github.com/break/junhong_cmp_fiber/pkg/config"
	"github.com/break/junhong_cmp_fiber/pkg/constants"
	"github.com/break/junhong_cmp_fiber/pkg/queue"
	"github.com/break/junhong_cmp_fiber/pkg/response"
	"github.com/break/junhong_cmp_fiber/tests/testutil"
	"github.com/gofiber/fiber/v2"
	"github.com/redis/go-redis/v9"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
	"go.uber.org/zap"
	"gorm.io/driver/postgres"
	"gorm.io/gorm"
	"gorm.io/gorm/logger"
)

type carrierTestEnv struct {
	db           *gorm.DB
	rdb          *redis.Client
	tokenManager *auth.TokenManager
	app          *fiber.App
	adminToken   string
	t            *testing.T
}

func setupCarrierTestEnv(t *testing.T) *carrierTestEnv {
	t.Helper()

	t.Setenv("JUNHONG_DATABASE_HOST", "cxd.whcxd.cn")
	t.Setenv("JUNHONG_DATABASE_PORT", "16159")
	t.Setenv("JUNHONG_DATABASE_USER", "erp_pgsql")
	t.Setenv("JUNHONG_DATABASE_PASSWORD", "erp_2025")
	t.Setenv("JUNHONG_DATABASE_DBNAME", "junhong_cmp_test")
	t.Setenv("JUNHONG_REDIS_ADDRESS", "cxd.whcxd.cn")
	t.Setenv("JUNHONG_REDIS_PORT", "16299")
	t.Setenv("JUNHONG_REDIS_PASSWORD", "cpNbWtAaqgo1YJmbMp3h")
	t.Setenv("JUNHONG_JWT_SECRET_KEY", "test_secret_key_for_integration_tests")

	cfg, err := config.Load()
	require.NoError(t, err)
	err = config.Set(cfg)
	require.NoError(t, err)

	zapLogger, _ := zap.NewDevelopment()

	dsn := "host=cxd.whcxd.cn port=16159 user=erp_pgsql password=erp_2025 dbname=junhong_cmp_test sslmode=disable TimeZone=Asia/Shanghai"
	db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{
		Logger: logger.Default.LogMode(logger.Silent),
	})
	require.NoError(t, err)

	rdb := redis.NewClient(&redis.Options{
		Addr:     "cxd.whcxd.cn:16299",
		Password: "cpNbWtAaqgo1YJmbMp3h",
		DB:       15,
	})

	ctx := context.Background()
	err = rdb.Ping(ctx).Err()
	require.NoError(t, err)

	testPrefix := fmt.Sprintf("test:%s:", t.Name())
	keys, _ := rdb.Keys(ctx, testPrefix+"*").Result()
	if len(keys) > 0 {
		rdb.Del(ctx, keys...)
	}

	tokenManager := auth.NewTokenManager(rdb, 24*time.Hour, 7*24*time.Hour)
	superAdmin := testutil.CreateSuperAdmin(t, db)
	adminToken, _ := testutil.GenerateTestToken(t, rdb, superAdmin, "web")

	queueClient := queue.NewClient(rdb, zapLogger)

	deps := &bootstrap.Dependencies{
		DB:           db,
		Redis:        rdb,
		Logger:       zapLogger,
		TokenManager: tokenManager,
		QueueClient:  queueClient,
	}

	result, err := bootstrap.Bootstrap(deps)
	require.NoError(t, err)

	app := fiber.New(fiber.Config{
		ErrorHandler: internalMiddleware.ErrorHandler(zapLogger),
	})

	routes.RegisterRoutes(app, result.Handlers, result.Middlewares)

	return &carrierTestEnv{
		db:           db,
		rdb:          rdb,
		tokenManager: tokenManager,
		app:          app,
		adminToken:   adminToken,
		t:            t,
	}
}

func (e *carrierTestEnv) teardown() {
	e.db.Exec("DELETE FROM tb_carrier WHERE carrier_code LIKE 'TEST%'")

	ctx := context.Background()
	testPrefix := fmt.Sprintf("test:%s:", e.t.Name())
	keys, _ := e.rdb.Keys(ctx, testPrefix+"*").Result()
	if len(keys) > 0 {
		e.rdb.Del(ctx, keys...)
	}

	e.rdb.Close()
}

func TestCarrier_CRUD(t *testing.T) {
	env := setupCarrierTestEnv(t)
	defer env.teardown()

	var createdCarrierID uint

	t.Run("创建运营商", func(t *testing.T) {
		body := map[string]interface{}{
			"carrier_code": "TEST_CMCC_001",
			"carrier_name": "测试中国移动",
			"carrier_type": constants.CarrierTypeCMCC,
			"description":  "API集成测试创建的运营商",
		}
		jsonBody, _ := json.Marshal(body)

		req := httptest.NewRequest("POST", "/api/admin/carriers", bytes.NewReader(jsonBody))
		req.Header.Set("Content-Type", "application/json")
		req.Header.Set("Authorization", "Bearer "+env.adminToken)

		resp, err := env.app.Test(req, -1)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, 200, resp.StatusCode)

		var result response.Response
		err = json.NewDecoder(resp.Body).Decode(&result)
		require.NoError(t, err)
		assert.Equal(t, 0, result.Code)

		dataMap, ok := result.Data.(map[string]interface{})
		require.True(t, ok)
		assert.Equal(t, "TEST_CMCC_001", dataMap["carrier_code"])
		assert.Equal(t, "测试中国移动", dataMap["carrier_name"])
		assert.Equal(t, constants.CarrierTypeCMCC, dataMap["carrier_type"])
		assert.Equal(t, float64(constants.StatusEnabled), dataMap["status"])

		createdCarrierID = uint(dataMap["id"].(float64))
		t.Logf("创建的运营商 ID: %d", createdCarrierID)
	})

	t.Run("创建运营商-编码重复应失败", func(t *testing.T) {
		body := map[string]interface{}{
			"carrier_code": "TEST_CMCC_001",
			"carrier_name": "重复编码测试",
			"carrier_type": constants.CarrierTypeCMCC,
		}
		jsonBody, _ := json.Marshal(body)

		req := httptest.NewRequest("POST", "/api/admin/carriers", bytes.NewReader(jsonBody))
		req.Header.Set("Content-Type", "application/json")
		req.Header.Set("Authorization", "Bearer "+env.adminToken)

		resp, err := env.app.Test(req, -1)
		require.NoError(t, err)
		defer resp.Body.Close()

		var result response.Response
		err = json.NewDecoder(resp.Body).Decode(&result)
		require.NoError(t, err)
		assert.NotEqual(t, 0, result.Code, "编码重复应返回错误")
	})

	t.Run("获取运营商详情", func(t *testing.T) {
		url := fmt.Sprintf("/api/admin/carriers/%d", createdCarrierID)
		req := httptest.NewRequest("GET", url, nil)
		req.Header.Set("Authorization", "Bearer "+env.adminToken)

		resp, err := env.app.Test(req, -1)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, 200, resp.StatusCode)

		var result response.Response
		err = json.NewDecoder(resp.Body).Decode(&result)
		require.NoError(t, err)
		assert.Equal(t, 0, result.Code)

		dataMap := result.Data.(map[string]interface{})
		assert.Equal(t, "TEST_CMCC_001", dataMap["carrier_code"])
	})

	t.Run("获取不存在的运营商", func(t *testing.T) {
		req := httptest.NewRequest("GET", "/api/admin/carriers/99999", nil)
		req.Header.Set("Authorization", "Bearer "+env.adminToken)

		resp, err := env.app.Test(req, -1)
		require.NoError(t, err)
		defer resp.Body.Close()

		var result response.Response
		err = json.NewDecoder(resp.Body).Decode(&result)
		require.NoError(t, err)
		assert.NotEqual(t, 0, result.Code, "不存在的运营商应返回错误")
	})

	t.Run("更新运营商", func(t *testing.T) {
		body := map[string]interface{}{
			"carrier_name": "测试中国移动-更新",
			"description":  "更新后的描述",
		}
		jsonBody, _ := json.Marshal(body)

		url := fmt.Sprintf("/api/admin/carriers/%d", createdCarrierID)
		req := httptest.NewRequest("PUT", url, bytes.NewReader(jsonBody))
		req.Header.Set("Content-Type", "application/json")
		req.Header.Set("Authorization", "Bearer "+env.adminToken)

		resp, err := env.app.Test(req, -1)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, 200, resp.StatusCode)

		var result response.Response
		err = json.NewDecoder(resp.Body).Decode(&result)
		require.NoError(t, err)
		assert.Equal(t, 0, result.Code)

		dataMap := result.Data.(map[string]interface{})
		assert.Equal(t, "测试中国移动-更新", dataMap["carrier_name"])
		assert.Equal(t, "更新后的描述", dataMap["description"])
	})

	t.Run("更新运营商状态-禁用", func(t *testing.T) {
		body := map[string]interface{}{
			"status": constants.StatusDisabled,
		}
		jsonBody, _ := json.Marshal(body)

		url := fmt.Sprintf("/api/admin/carriers/%d/status", createdCarrierID)
		req := httptest.NewRequest("PUT", url, bytes.NewReader(jsonBody))
		req.Header.Set("Content-Type", "application/json")
		req.Header.Set("Authorization", "Bearer "+env.adminToken)

		resp, err := env.app.Test(req, -1)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, 200, resp.StatusCode)

		var result response.Response
		err = json.NewDecoder(resp.Body).Decode(&result)
		require.NoError(t, err)
		assert.Equal(t, 0, result.Code)

		var carrier model.Carrier
		env.db.First(&carrier, createdCarrierID)
		assert.Equal(t, constants.StatusDisabled, carrier.Status)
	})

	t.Run("删除运营商", func(t *testing.T) {
		url := fmt.Sprintf("/api/admin/carriers/%d", createdCarrierID)
		req := httptest.NewRequest("DELETE", url, nil)
		req.Header.Set("Authorization", "Bearer "+env.adminToken)

		resp, err := env.app.Test(req, -1)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, 200, resp.StatusCode)

		var result response.Response
		err = json.NewDecoder(resp.Body).Decode(&result)
		require.NoError(t, err)
		assert.Equal(t, 0, result.Code)

		var carrier model.Carrier
		err = env.db.First(&carrier, createdCarrierID).Error
		assert.Error(t, err, "删除后应查不到运营商")
	})
}

func TestCarrier_List(t *testing.T) {
	env := setupCarrierTestEnv(t)
	defer env.teardown()

	carriers := []*model.Carrier{
		{CarrierCode: "TEST_LIST_001", CarrierName: "移动列表测试1", CarrierType: constants.CarrierTypeCMCC, Status: constants.StatusEnabled},
		{CarrierCode: "TEST_LIST_002", CarrierName: "联通列表测试", CarrierType: constants.CarrierTypeCUCC, Status: constants.StatusEnabled},
		{CarrierCode: "TEST_LIST_003", CarrierName: "电信列表测试", CarrierType: constants.CarrierTypeCTCC, Status: constants.StatusEnabled},
	}
	for _, c := range carriers {
		require.NoError(t, env.db.Create(c).Error)
	}
	carriers[2].Status = constants.StatusDisabled
	require.NoError(t, env.db.Save(carriers[2]).Error)

	t.Run("获取运营商列表-无过滤", func(t *testing.T) {
		req := httptest.NewRequest("GET", "/api/admin/carriers?page=1&page_size=20", nil)
		req.Header.Set("Authorization", "Bearer "+env.adminToken)

		resp, err := env.app.Test(req, -1)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, 200, resp.StatusCode)

		var result response.Response
		err = json.NewDecoder(resp.Body).Decode(&result)
		require.NoError(t, err)
		assert.Equal(t, 0, result.Code)
	})

	t.Run("获取运营商列表-按类型过滤", func(t *testing.T) {
		req := httptest.NewRequest("GET", "/api/admin/carriers?carrier_type=CMCC", nil)
		req.Header.Set("Authorization", "Bearer "+env.adminToken)

		resp, err := env.app.Test(req, -1)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, 200, resp.StatusCode)

		var result response.Response
		err = json.NewDecoder(resp.Body).Decode(&result)
		require.NoError(t, err)
		assert.Equal(t, 0, result.Code)
	})

	t.Run("获取运营商列表-按名称模糊搜索", func(t *testing.T) {
		req := httptest.NewRequest("GET", "/api/admin/carriers?carrier_name=联通", nil)
		req.Header.Set("Authorization", "Bearer "+env.adminToken)

		resp, err := env.app.Test(req, -1)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, 200, resp.StatusCode)

		var result response.Response
		err = json.NewDecoder(resp.Body).Decode(&result)
		require.NoError(t, err)
		assert.Equal(t, 0, result.Code)
	})

	t.Run("获取运营商列表-按状态过滤", func(t *testing.T) {
		req := httptest.NewRequest("GET", fmt.Sprintf("/api/admin/carriers?status=%d", constants.StatusDisabled), nil)
		req.Header.Set("Authorization", "Bearer "+env.adminToken)

		resp, err := env.app.Test(req, -1)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, 200, resp.StatusCode)

		var result response.Response
		err = json.NewDecoder(resp.Body).Decode(&result)
		require.NoError(t, err)
		assert.Equal(t, 0, result.Code)
	})

	t.Run("未认证请求应返回错误", func(t *testing.T) {
		req := httptest.NewRequest("GET", "/api/admin/carriers", nil)

		resp, err := env.app.Test(req, -1)
		require.NoError(t, err)
		defer resp.Body.Close()

		var result response.Response
		err = json.NewDecoder(resp.Body).Decode(&result)
		require.NoError(t, err)
		assert.NotEqual(t, 0, result.Code, "未认证请求应返回错误码")
	})
}