package common

import (
	"testing"

	bindata "github.com/status-im/migrate/v4/source/go_bindata"
	"github.com/stretchr/testify/require"

	cryptotypes "github.com/status-im/status-go/internal/crypto/types"
	"github.com/status-im/status-go/internal/testutils"
	"github.com/status-im/status-go/pkg/messaging/common/migrations"
	types "github.com/status-im/status-go/pkg/messaging/types"
)

func TestConfirmations(t *testing.T) {
	dataSyncID1 := []byte("datsync-id-1")
	dataSyncID2 := []byte("datsync-id-2")
	dataSyncID3 := []byte("datsync-id-3")
	dataSyncID4 := []byte("datsync-id-3")

	messageID1 := []byte("message-id-1")
	messageID2 := []byte("message-id-2")

	publicKey1 := []byte("pk-1")
	publicKey2 := []byte("pk-2")
	publicKey3 := []byte("pk-3")

	db, err := testutils.SetupTestMemorySQLDB(testutils.NewTestDBInitializer([]*bindata.AssetSource{
		{
			Names:     migrations.AssetNames(),
			AssetFunc: migrations.Asset,
		},
	}))
	require.NoError(t, err)

	p := NewSQLiteMessageConfirmationPersistence(db)

	confirmation1 := &MessageConfirmation{
		DataSyncID: dataSyncID1,
		MessageID:  messageID1,
		PublicKey:  publicKey1,
	}

	// Same datasyncID and same messageID, different pubkey
	confirmation2 := &MessageConfirmation{
		DataSyncID: dataSyncID2,
		MessageID:  messageID1,
		PublicKey:  publicKey2,
	}

	// Different datasyncID and same messageID, different pubkey
	confirmation3 := &MessageConfirmation{
		DataSyncID: dataSyncID3,
		MessageID:  messageID1,
		PublicKey:  publicKey3,
	}

	// Same dataSyncID, different messageID
	confirmation4 := &MessageConfirmation{
		DataSyncID: dataSyncID4,
		MessageID:  messageID2,
		PublicKey:  publicKey1,
	}

	require.NoError(t, p.InsertPendingConfirmation(confirmation1))
	require.NoError(t, p.InsertPendingConfirmation(confirmation2))
	require.NoError(t, p.InsertPendingConfirmation(confirmation3))
	require.NoError(t, p.InsertPendingConfirmation(confirmation4))

	// We confirm the first datasync message, no confirmations
	messageID, err := p.MarkAsConfirmed(dataSyncID1, false)
	require.NoError(t, err)
	require.Nil(t, messageID)

	// We confirm the second datasync message, no confirmations
	messageID, err = p.MarkAsConfirmed(dataSyncID2, false)
	require.NoError(t, err)
	require.Nil(t, messageID)

	// We confirm the third datasync message, messageID1 should be confirmed
	messageID, err = p.MarkAsConfirmed(dataSyncID3, false)
	require.NoError(t, err)
	require.Equal(t, messageID, cryptotypes.HexBytes(messageID1))
}

func TestConfirmationsAtLeastOne(t *testing.T) {
	dataSyncID1 := []byte("datsync-id-1")
	dataSyncID2 := []byte("datsync-id-2")
	dataSyncID3 := []byte("datsync-id-3")

	messageID1 := []byte("message-id-1")

	publicKey1 := []byte("pk-1")
	publicKey2 := []byte("pk-2")
	publicKey3 := []byte("pk-3")

	db, err := testutils.SetupTestMemorySQLDB(testutils.NewTestDBInitializer([]*bindata.AssetSource{
		{
			Names:     migrations.AssetNames(),
			AssetFunc: migrations.Asset,
		},
	}))
	require.NoError(t, err)

	p := NewSQLiteMessageConfirmationPersistence(db)

	confirmation1 := &MessageConfirmation{
		DataSyncID: dataSyncID1,
		MessageID:  messageID1,
		PublicKey:  publicKey1,
	}

	// Same datasyncID and same messageID, different pubkey
	confirmation2 := &MessageConfirmation{
		DataSyncID: dataSyncID2,
		MessageID:  messageID1,
		PublicKey:  publicKey2,
	}

	// Different datasyncID and same messageID, different pubkey
	confirmation3 := &MessageConfirmation{
		DataSyncID: dataSyncID3,
		MessageID:  messageID1,
		PublicKey:  publicKey3,
	}

	require.NoError(t, p.InsertPendingConfirmation(confirmation1))
	require.NoError(t, p.InsertPendingConfirmation(confirmation2))
	require.NoError(t, p.InsertPendingConfirmation(confirmation3))

	// We confirm the first datasync message, messageID1 and 3 should be confirmed
	messageID, err := p.MarkAsConfirmed(dataSyncID1, true)
	require.NoError(t, err)
	require.NotNil(t, messageID)
	require.Equal(t, cryptotypes.HexBytes(messageID1), messageID)
}

func TestSaveHashRatchetMessage(t *testing.T) {
	db, err := testutils.SetupTestMemorySQLDB(testutils.NewTestDBInitializer([]*bindata.AssetSource{
		{
			Names:     migrations.AssetNames(),
			AssetFunc: migrations.Asset,
		},
	}))
	require.NoError(t, err)

	p := NewSQLiteHashRatchetPersistence(db)

	groupID1 := []byte("group-id-1")
	groupID2 := []byte("group-id-2")
	keyID := []byte("key-id")

	message1 := &types.ReceivedMessage{
		Hash:      []byte{1},
		Sig:       []byte{2},
		Timestamp: 2,
		Payload:   []byte{3},
	}

	require.NoError(t, p.SaveMessage(groupID1, keyID, message1))

	message2 := &types.ReceivedMessage{
		Hash:      []byte{2},
		Sig:       []byte{2},
		Topic:     types.BytesToContentTopic([]byte{5}),
		Timestamp: 2,
		Payload:   []byte{3},
		Dst:       []byte{4},
	}

	require.NoError(t, p.SaveMessage(groupID2, keyID, message2))

	fetchedMessages, err := p.GetMessages(keyID)
	require.NoError(t, err)
	require.NotNil(t, fetchedMessages)
	require.Len(t, fetchedMessages, 2)
}

func TestDeleteHashRatchetMessage(t *testing.T) {
	db, err := testutils.SetupTestMemorySQLDB(testutils.NewTestDBInitializer([]*bindata.AssetSource{
		{
			Names:     migrations.AssetNames(),
			AssetFunc: migrations.Asset,
		},
	}))
	require.NoError(t, err)

	p := NewSQLiteHashRatchetPersistence(db)

	groupID := []byte("group-id")
	keyID := []byte("key-id")

	message1 := &types.ReceivedMessage{
		Hash:      []byte{1},
		Sig:       []byte{2},
		Timestamp: 2,
		Payload:   []byte{3},
	}

	require.NoError(t, p.SaveMessage(groupID, keyID, message1))

	message2 := &types.ReceivedMessage{
		Hash:      []byte{2},
		Sig:       []byte{2},
		Topic:     types.BytesToContentTopic([]byte{5}),
		Timestamp: 2,
		Payload:   []byte{3},
		Dst:       []byte{4},
	}

	require.NoError(t, p.SaveMessage(groupID, keyID, message2))

	message3 := &types.ReceivedMessage{
		Hash:      []byte{3},
		Sig:       []byte{2},
		Topic:     types.BytesToContentTopic([]byte{5}),
		Timestamp: 2,
		Payload:   []byte{3},
		Dst:       []byte{4},
	}

	require.NoError(t, p.SaveMessage(groupID, keyID, message3))

	fetchedMessages, err := p.GetMessages(keyID)
	require.NoError(t, err)
	require.NotNil(t, fetchedMessages)
	require.Len(t, fetchedMessages, 3)

	require.NoError(t, p.DeleteMessages([][]byte{[]byte{1}, []byte{2}}))

	fetchedMessages, err = p.GetMessages(keyID)
	require.NoError(t, err)
	require.NotNil(t, fetchedMessages)
	require.Len(t, fetchedMessages, 1)
}