package integration

import (
	"context"
	"encoding/json"
	integrationbiz "kra/internal/biz/integration"
	"testing"

	"kra/internal/integration/runtimeconfig"
)

type integrationRuntimeTestProvider struct {
	*Data
	store *runtimeconfig.Store
}

func (p *integrationRuntimeTestProvider) IntegrationRuntime() *runtimeconfig.Store { return p.store }

func TestIntegrationConfigSavePublishesUnmaskedRuntimeValues(t *testing.T) {
	db, err := openWithDriver("sqlite", "file:"+t.Name()+"?mode=memory&cache=shared")
	if err != nil {
		t.Fatal(err)
	}
	if err = db.AutoMigrate(&ConfigPO{}); err != nil {
		t.Fatal(err)
	}
	provider := &integrationRuntimeTestProvider{Data: &Data{gormDB: newReloadableDB(db, nil)}, store: runtimeconfig.NewStore()}
	repo := &integrationConfigRepo{data: provider}

	values := integrationbiz.DefaultIntegrationConfig(integrationbiz.IntegrationKindMQ, "rabbitmq")
	values["password"] = "runtime-secret"
	raw, _ := json.Marshal(values)
	if err = repo.SaveIntegrationConfig(context.Background(), &integrationbiz.IntegrationConfig{Kind: integrationbiz.IntegrationKindMQ, Provider: "rabbitmq", Enabled: true, Values: raw}); err != nil {
		t.Fatal(err)
	}

	values["password"] = "******"
	raw, _ = json.Marshal(values)
	if err = repo.SaveIntegrationConfig(context.Background(), &integrationbiz.IntegrationConfig{Kind: integrationbiz.IntegrationKindMQ, Provider: "rabbitmq", Enabled: true, Values: raw}); err != nil {
		t.Fatal(err)
	}
	active, ok := provider.store.Get(integrationbiz.IntegrationKindMQ, "rabbitmq")
	if !ok || !active.Enabled {
		t.Fatalf("runtime config = %#v, ok=%v", active, ok)
	}
	stored := map[string]any{}
	if err = json.Unmarshal(active.Values, &stored); err != nil {
		t.Fatal(err)
	}
	if stored["password"] != "runtime-secret" {
		t.Fatalf("runtime password = %#v", stored["password"])
	}
}

func TestCommunicationDefaultsIncludeKafka(t *testing.T) {
	db, err := openWithDriver("sqlite", "file:"+t.Name()+"?mode=memory&cache=shared")
	if err != nil {
		t.Fatal(err)
	}
	if err = db.AutoMigrate(&ConfigPO{}); err != nil {
		t.Fatal(err)
	}
	if err = ensureCommunicationIntegrationConfigs(db); err != nil {
		t.Fatal(err)
	}
	var row ConfigPO
	if err = db.Where("kind = ? AND provider = ?", integrationbiz.IntegrationKindMQ, "kafka").First(&row).Error; err != nil {
		t.Fatal(err)
	}
	if row.Enabled || row.Config == "" {
		t.Fatalf("kafka default row = %#v", row)
	}
}

func TestKafkaDefaultMigrationDoesNotRecreateOtherProviders(t *testing.T) {
	db, err := openWithDriver("sqlite", "file:"+t.Name()+"?mode=memory&cache=shared")
	if err != nil {
		t.Fatal(err)
	}
	if err = db.AutoMigrate(&ConfigPO{}); err != nil {
		t.Fatal(err)
	}
	if err = ensureKafkaIntegrationConfig(db); err != nil {
		t.Fatal(err)
	}
	var kafkaRows, otherRows int64
	if err = db.Model(&ConfigPO{}).Where("kind = ? AND provider = ?", integrationbiz.IntegrationKindMQ, "kafka").Count(&kafkaRows).Error; err != nil {
		t.Fatal(err)
	}
	if err = db.Model(&ConfigPO{}).Where("provider <> ?", "kafka").Count(&otherRows).Error; err != nil {
		t.Fatal(err)
	}
	if kafkaRows != 1 || otherRows != 0 {
		t.Fatalf("migration rows kafka=%d other=%d", kafkaRows, otherRows)
	}
}

func TestCommunicationDefaultUpgradeRepairsRequiredEmptyFields(t *testing.T) {
	db, err := openWithDriver("sqlite", "file:"+t.Name()+"?mode=memory&cache=shared")
	if err != nil {
		t.Fatal(err)
	}
	if err = db.AutoMigrate(&ConfigPO{}); err != nil {
		t.Fatal(err)
	}
	legacy := `{"enabled":false,"broker":"","client_id":"","username":"","password":"","keep_alive":30,"clean_session":true,"connect_timeout":10}`
	if err = db.Create(&ConfigPO{Kind: integrationbiz.IntegrationKindMQ, Provider: "emqx", Config: legacy}).Error; err != nil {
		t.Fatal(err)
	}
	if err = upgradeCommunicationIntegrationDefaults(db); err != nil {
		t.Fatal(err)
	}
	var row ConfigPO
	if err = db.Where("kind = ? AND provider = ?", integrationbiz.IntegrationKindMQ, "emqx").First(&row).Error; err != nil {
		t.Fatal(err)
	}
	values := map[string]any{}
	if err = json.Unmarshal([]byte(row.Config), &values); err != nil {
		t.Fatal(err)
	}
	if values["broker"] != "tcp://127.0.0.1:1883" || values["client_id"] != "kra" || values["reconnect_interval"] != float64(5) {
		t.Fatalf("upgraded emqx values = %#v", values)
	}
	if values["username"] != "" || values["password"] != "" {
		t.Fatalf("optional credentials were overwritten: %#v", values)
	}
	if _, exists := values["enabled"]; exists {
		t.Fatalf("legacy enabled field remained: %#v", values)
	}
	if err = db.Delete(&row).Error; err != nil {
		t.Fatal(err)
	}
	if err = upgradeCommunicationIntegrationDefaults(db); err != nil {
		t.Fatal(err)
	}
	var count int64
	if err = db.Model(&ConfigPO{}).Where("kind = ? AND provider = ?", integrationbiz.IntegrationKindMQ, "emqx").Count(&count).Error; err != nil {
		t.Fatal(err)
	}
	if count != 0 {
		t.Fatalf("upgrade recreated deleted emqx row: %d", count)
	}
}