package smashegg

import (
	"context"
	"testing"
	"time"

	"chatapp3-golang/internal/config"
	"chatapp3-golang/internal/integration"
	"chatapp3-golang/internal/model"

	"gorm.io/driver/sqlite"
	"gorm.io/gorm"
)

type fakeSmashEggGateway struct {
	giftCalls  []fakeGiftBackpackCall
	propsCalls []integration.GivePropsBackpackRequest
	switches   int
	changes    []integration.GoldReceiptCommand
}

type fakeGiftBackpackCall struct {
	userID   int64
	giftID   int64
	quantity int
}

func (g *fakeSmashEggGateway) ChangeGoldBalance(_ context.Context, cmd integration.GoldReceiptCommand) error {
	g.changes = append(g.changes, cmd)
	return nil
}

func (g *fakeSmashEggGateway) GivePropsBackpack(_ context.Context, req integration.GivePropsBackpackRequest) error {
	g.propsCalls = append(g.propsCalls, req)
	return nil
}

func (g *fakeSmashEggGateway) IncrGiftBackpack(_ context.Context, userID int64, giftID int64, quantity int) error {
	g.giftCalls = append(g.giftCalls, fakeGiftBackpackCall{
		userID:   userID,
		giftID:   giftID,
		quantity: quantity,
	})
	return nil
}

func (g *fakeSmashEggGateway) SwitchUseProps(context.Context, int64, int64) error {
	g.switches++
	return nil
}

func (g *fakeSmashEggGateway) ActivateTemporaryBadge(context.Context, int64, int64, int) error {
	return nil
}

func (g *fakeSmashEggGateway) RemoveUserProfileCacheAll(context.Context, int64) error {
	return nil
}

func (g *fakeSmashEggGateway) MapGoldBalance(context.Context, []int64) (map[int64]int64, error) {
	return map[int64]int64{}, nil
}

func (g *fakeSmashEggGateway) MapUserTotalRecharge(context.Context, []int64) (map[int64][]integration.UserTotalRecharge, error) {
	return map[int64][]integration.UserTotalRecharge{}, nil
}

func TestGrantResourceRewardRoutesGiftToGiftBackpack(t *testing.T) {
	gateway := &fakeSmashEggGateway{}
	service := &Service{java: gateway}
	giftID := int64(2044086730826510337)

	if err := service.grantResourceReward(context.Background(), &model.SmashEggDrawRecord{
		UserID:        2042274349343506434,
		RewardGroupID: &giftID,
		ResourceType:  resourceTypeGift,
		DurationDays:  7,
	}); err != nil {
		t.Fatalf("grantResourceReward() error = %v", err)
	}

	if len(gateway.giftCalls) != 1 {
		t.Fatalf("gift backpack calls = %d, want 1", len(gateway.giftCalls))
	}
	if got := gateway.giftCalls[0]; got.userID != 2042274349343506434 || got.giftID != giftID || got.quantity != 1 {
		t.Fatalf("gift backpack call = %+v", got)
	}
	if len(gateway.propsCalls) != 0 {
		t.Fatalf("props backpack calls = %d, want 0", len(gateway.propsCalls))
	}
	if gateway.switches != 0 {
		t.Fatalf("switch use props calls = %d, want 0", gateway.switches)
	}
}

func TestDrawIdempotencyReturnsOriginalResultWithoutSecondCharge(t *testing.T) {
	service, gateway, db := newSmashEggDrawTestService(t)
	seedSmashEggDrawConfig(t, db)
	req := DrawRequest{Times: 1, IdempotencyKey: "egg-h5-key-1"}

	first, err := service.Draw(context.Background(), AuthUser{UserID: 1001, SysOrigin: "LIKEI"}, req)
	if err != nil {
		t.Fatalf("Draw() first error = %v", err)
	}
	second, err := service.Draw(context.Background(), AuthUser{UserID: 1001, SysOrigin: "LIKEI"}, req)
	if err != nil {
		t.Fatalf("Draw() second error = %v", err)
	}
	if second.DrawNo != first.DrawNo {
		t.Fatalf("second drawNo = %s, want %s", second.DrawNo, first.DrawNo)
	}
	if len(gateway.changes) != 2 {
		t.Fatalf("wallet changes = %d, want one pay+reward", len(gateway.changes))
	}
	var recordCount int64
	if err := db.Model(&model.SmashEggDrawRecord{}).Where("draw_no = ?", first.DrawNo).Count(&recordCount).Error; err != nil {
		t.Fatalf("count records: %v", err)
	}
	if recordCount != 1 {
		t.Fatalf("record count = %d, want 1", recordCount)
	}
}

func TestDrawIdempotencyRejectsDifferentRequest(t *testing.T) {
	service, gateway, db := newSmashEggDrawTestService(t)
	seedSmashEggDrawConfig(t, db)

	_, err := service.Draw(context.Background(), AuthUser{UserID: 1001, SysOrigin: "LIKEI"}, DrawRequest{Times: 1, IdempotencyKey: "egg-h5-key-2"})
	if err != nil {
		t.Fatalf("Draw() first error = %v", err)
	}
	_, err = service.Draw(context.Background(), AuthUser{UserID: 1001, SysOrigin: "LIKEI"}, DrawRequest{Times: 10, IdempotencyKey: "egg-h5-key-2"})
	if err == nil {
		t.Fatal("Draw() second expected idempotency conflict")
	}
	if len(gateway.changes) != 2 {
		t.Fatalf("wallet changes = %d, want only first pay+reward", len(gateway.changes))
	}
}

func newSmashEggDrawTestService(t *testing.T) (*Service, *fakeSmashEggGateway, *gorm.DB) {
	t.Helper()
	db, err := gorm.Open(sqlite.Open("file:"+t.Name()+"?mode=memory&cache=shared"), &gorm.Config{})
	if err != nil {
		t.Fatalf("open sqlite: %v", err)
	}
	if err := db.AutoMigrate(
		&model.SmashEggConfig{},
		&model.SmashEggDrawOptionConfig{},
		&model.SmashEggRewardConfig{},
		&model.SmashEggDrawRecord{},
		&model.ActivityIdempotency{},
	); err != nil {
		t.Fatalf("migrate sqlite: %v", err)
	}
	gateway := &fakeSmashEggGateway{}
	return NewService(config.Config{}, db, gateway), gateway, db
}

func seedSmashEggDrawConfig(t *testing.T, db *gorm.DB) {
	t.Helper()
	now := time.Now()
	configRow := model.SmashEggConfig{
		ID:             1,
		SysOrigin:      "LIKEI",
		Enabled:        true,
		Timezone:       defaultTimezone,
		RTPBasisPoints: defaultRTPBasisPoints,
		CreateTime:     now,
		UpdateTime:     now,
	}
	options := []model.SmashEggDrawOptionConfig{
		{ID: 2, ConfigID: 1, SysOrigin: "LIKEI", OptionKey: optionKeyOne, Label: "Smash 1", Times: 1, PriceGold: 100, Sort: 1, Enabled: true, CreateTime: now, UpdateTime: now},
		{ID: 3, ConfigID: 1, SysOrigin: "LIKEI", OptionKey: optionKeyTen, Label: "Smash 10", Times: 10, PriceGold: 1000, Sort: 2, Enabled: true, CreateTime: now, UpdateTime: now},
	}
	rewards := []model.SmashEggRewardConfig{
		{ID: 4, ConfigID: 1, SysOrigin: "LIKEI", PoolType: poolTypeGeneral, RewardType: rewardTypeGold, RewardGroupName: "50 Gold", GoldAmount: 50, RewardValueGold: 50, Sort: 1, Enabled: true, CreateTime: now, UpdateTime: now},
		{ID: 5, ConfigID: 1, SysOrigin: "LIKEI", PoolType: poolTypeGeneral, RewardType: rewardTypeGold, RewardGroupName: "100 Gold", GoldAmount: 100, RewardValueGold: 100, Sort: 2, Enabled: true, CreateTime: now, UpdateTime: now},
	}
	if err := db.Create(&configRow).Error; err != nil {
		t.Fatalf("seed config: %v", err)
	}
	if err := db.Create(&options).Error; err != nil {
		t.Fatalf("seed options: %v", err)
	}
	if err := db.Create(&rewards).Error; err != nil {
		t.Fatalf("seed rewards: %v", err)
	}
}