package documentinit

import (
	"context"
	"errors"
	"fmt"
	"queryorchestration/internal/client"
	"queryorchestration/internal/database"
	"queryorchestration/internal/database/repository"
	"queryorchestration/internal/document"
	"queryorchestration/internal/job"
	"queryorchestration/internal/serviceconfig"
	"queryorchestration/internal/serviceconfig/objectstore"
	"queryorchestration/internal/serviceconfig/queue/documentclean"
	objectstoremock "queryorchestration/mocks/objectstore"
	queuemock "queryorchestration/mocks/queue"
	"testing"

	"github.com/aws/aws-sdk-go-v2/service/s3"
	"github.com/aws/aws-sdk-go-v2/service/sqs"
	"github.com/google/uuid"
	"github.com/pashagolub/pgxmock/v3"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/mock"
)

type DocInitConfig struct {
	serviceconfig.BaseConfig
	documentclean.DocCleanConfig
	objectstore.ObjectStoreConfig
}

func TestCreate(t *testing.T) {
	ctx := context.Background()

	pool, err := pgxmock.NewPool()
	if err != nil {
		t.Fatalf("failed to open pgxmock database: %v", err)
	}
	cfg := &DocInitConfig{}
	cfg.DBPool = pool
	cfg.DBQueries = repository.New(pool)
	mockStore := objectstoremock.NewMockS3Client(t)
	cfg.StoreClient = mockStore

	svc := New(cfg, &Services{
		Job: job.New(cfg, &job.Services{
			Client: client.New(cfg),
		}),
	})

	j := job.Job{
		ID:       uuid.New(),
		ClientID: uuid.New(),
	}
	doc := document.Document{
		ID:    uuid.New(),
		JobID: j.ID,
		Hash:  "example_hash",
	}
	bucket := "eample_bucket"
	location := "/i/am/here"

	pool.ExpectQuery("name: GetJob :one").WithArgs(database.MustToDBUUID(j.ID)).WillReturnRows(
		pgxmock.NewRows([]string{"id", "clientId", "canSync"}).
			AddRow(database.MustToDBUUID(j.ID), database.MustToDBUUID(j.ClientID), j.CanSync),
	)
	pool.ExpectQuery("-- name: GetClient :one").WithArgs(database.MustToDBUUID(j.ClientID)).WillReturnRows(
		pgxmock.NewRows([]string{"id", "name", "canSync"}).
			AddRow(database.MustToDBUUID(j.ClientID), "client_name", true),
	)
	pool.ExpectQuery("-- name: GetDocumentIDByHash :one").WithArgs(doc.Hash, database.MustToDBUUID(doc.JobID)).WillReturnRows(
		pgxmock.NewRows([]string{"id"}),
	)
	pool.ExpectBegin()
	pool.ExpectQuery("name: CreateDocument :one").WithArgs(database.MustToDBUUID(doc.JobID), doc.Hash).
		WillReturnRows(
			pgxmock.NewRows([]string{"id"}).
				AddRow(database.MustToDBUUID(doc.ID)),
		)
	pool.ExpectExec("name: AddDocumentEntry :exec").WithArgs(database.MustToDBUUID(doc.ID), bucket, location).
		WillReturnResult(pgxmock.NewResult("", 1))
	pool.ExpectCommit()

	mockStore.EXPECT().
		HeadObject(
			mock.Anything,
			mock.MatchedBy(func(in *s3.HeadObjectInput) bool {
				return *in.Bucket == bucket && *in.Key == location
			}),
			mock.Anything,
		).
		Return(&s3.HeadObjectOutput{
			ETag: &doc.Hash,
		}, nil)

	id, err := svc.Create(ctx, &Create{
		JobID:    doc.JobID,
		Location: location,
		Bucket:   bucket,
	})
	assert.NoError(t, err)
	assert.Equal(t, doc.ID, id)
}

func TestInformCreate(t *testing.T) {
	ctx := context.Background()
	mockSQS := queuemock.NewMockSQSClient(t)

	cfg := &DocInitConfig{}
	cfg.QueueClient = mockSQS
	cfg.DocumentCleanURL = "/i/am/here"
	svc := Service{
		cfg: cfg,
	}
	id := uuid.New()
	j := &job.Job{}

	err := svc.informCreate(ctx, id, j)
	assert.NoError(t, err)

	mockSQS.EXPECT().
		SendMessage(
			mock.Anything,
			mock.MatchedBy(func(in *sqs.SendMessageInput) bool {
				return *in.QueueUrl == cfg.DocumentCleanURL && *in.MessageBody == fmt.Sprintf("{\"id\":\"%s\"}", id)
			}),
			mock.Anything,
		).
		Return(&sqs.SendMessageOutput{}, nil)

	j.CanSync = true
	err = svc.informCreate(ctx, id, j)
	assert.NoError(t, err)
}

func TestGetCreateParams(t *testing.T) {
	ctx := context.Background()

	pool, err := pgxmock.NewPool()
	if err != nil {
		t.Fatalf("failed to open pgxmock database: %v", err)
	}
	cfg := &DocInitConfig{}
	cfg.DBPool = pool
	cfg.DBQueries = repository.New(pool)
	mockStore := objectstoremock.NewMockS3Client(t)
	cfg.StoreClient = mockStore

	svc := New(cfg, &Services{
		Job: job.New(cfg, &job.Services{
			Client: client.New(cfg),
		}),
	})

	doc := document.Document{
		JobID: uuid.New(),
		Hash:  "example_hash",
	}
	bucket := "eample_bucket"
	location := "/i/am/here"

	pool.ExpectQuery("-- name: GetDocumentIDByHash :one").WithArgs(doc.Hash, database.MustToDBUUID(doc.JobID)).WillReturnRows(
		pgxmock.NewRows([]string{"id"}),
	)

	mockStore.EXPECT().
		HeadObject(
			mock.Anything,
			mock.MatchedBy(func(in *s3.HeadObjectInput) bool {
				return *in.Bucket == bucket && *in.Key == location
			}),
			mock.Anything,
		).
		Return(&s3.HeadObjectOutput{
			ETag: &doc.Hash,
		}, nil)

	params, err := svc.getCreateParams(ctx, &Create{
		JobID:    doc.JobID,
		Location: location,
		Bucket:   bucket,
	})
	assert.NoError(t, err)
	assert.Equal(t, &createDocumentParams{
		JobID:    database.MustToDBUUID(doc.JobID),
		Hash:     doc.Hash,
		Bucket:   bucket,
		Location: location,
	}, params)
}

func TestGetCreateParamsExisting(t *testing.T) {
	ctx := context.Background()

	pool, err := pgxmock.NewPool()
	if err != nil {
		t.Fatalf("failed to open pgxmock database: %v", err)
	}
	cfg := &DocInitConfig{}
	cfg.DBPool = pool
	cfg.DBQueries = repository.New(pool)
	mockStore := objectstoremock.NewMockS3Client(t)
	cfg.StoreClient = mockStore

	svc := New(cfg, &Services{
		Job: job.New(cfg, &job.Services{
			Client: client.New(cfg),
		}),
	})

	doc := document.Document{
		ID:    uuid.New(),
		JobID: uuid.New(),
		Hash:  "example_hash",
	}
	bucket := "eample_bucket"
	location := "/i/am/here"

	pool.ExpectQuery("-- name: GetDocumentIDByHash :one").WithArgs(doc.Hash, database.MustToDBUUID(doc.JobID)).WillReturnRows(
		pgxmock.NewRows([]string{"id"}).
			AddRow(database.MustToDBUUID(doc.ID)),
	)

	mockStore.EXPECT().
		HeadObject(
			mock.Anything,
			mock.MatchedBy(func(in *s3.HeadObjectInput) bool {
				return *in.Bucket == bucket && *in.Key == location
			}),
			mock.Anything,
		).
		Return(&s3.HeadObjectOutput{
			ETag: &doc.Hash,
		}, nil)

	params, err := svc.getCreateParams(ctx, &Create{
		JobID:    doc.JobID,
		Location: location,
		Bucket:   bucket,
	})
	assert.NoError(t, err)
	dbid := database.MustToDBUUID(doc.ID)
	assert.Equal(t, &createDocumentParams{
		ID:       &dbid,
		JobID:    database.MustToDBUUID(doc.JobID),
		Hash:     doc.Hash,
		Bucket:   bucket,
		Location: location,
	}, params)
}

func TestGetCreateParamsCurrentDocErr(t *testing.T) {
	ctx := context.Background()

	pool, err := pgxmock.NewPool()
	if err != nil {
		t.Fatalf("failed to open pgxmock database: %v", err)
	}
	cfg := &DocInitConfig{}
	cfg.DBPool = pool
	cfg.DBQueries = repository.New(pool)
	mockStore := objectstoremock.NewMockS3Client(t)
	cfg.StoreClient = mockStore

	svc := New(cfg, &Services{
		Job: job.New(cfg, &job.Services{
			Client: client.New(cfg),
		}),
	})

	doc := document.Document{
		JobID: uuid.New(),
		Hash:  "example_hash",
	}
	bucket := "eample_bucket"
	location := "/i/am/here"

	pool.ExpectQuery("-- name: GetDocumentIDByHash :one").WithArgs(doc.Hash, database.MustToDBUUID(doc.JobID)).
		WillReturnError(errors.New("db err"))

	mockStore.EXPECT().
		HeadObject(
			mock.Anything,
			mock.MatchedBy(func(in *s3.HeadObjectInput) bool {
				return *in.Bucket == bucket && *in.Key == location
			}),
			mock.Anything,
		).
		Return(&s3.HeadObjectOutput{
			ETag: &doc.Hash,
		}, nil)

	_, err = svc.getCreateParams(ctx, &Create{
		JobID:    doc.JobID,
		Location: location,
		Bucket:   bucket,
	})
	assert.Error(t, err)
}

func TestSubmitCreate(t *testing.T) {
	ctx := context.Background()

	pool, err := pgxmock.NewPool()
	if err != nil {
		t.Fatalf("failed to open pgxmock database: %v", err)
	}
	cfg := &DocInitConfig{}
	cfg.DBPool = pool
	cfg.DBQueries = repository.New(pool)

	svc := New(cfg, &Services{
		Job: job.New(cfg, &job.Services{
			Client: client.New(cfg),
		}),
	})

	doc := document.Document{
		ID:    uuid.New(),
		JobID: uuid.New(),
		Hash:  "example_hash",
	}
	bucket := "eample_bucket"
	location := "/i/am/here"

	pool.ExpectBegin()
	pool.ExpectQuery("name: CreateDocument :one").WithArgs(database.MustToDBUUID(doc.JobID), doc.Hash).
		WillReturnRows(
			pgxmock.NewRows([]string{"id"}).
				AddRow(database.MustToDBUUID(doc.ID)),
		)
	pool.ExpectExec("name: AddDocumentEntry :exec").WithArgs(database.MustToDBUUID(doc.ID), bucket, location).
		WillReturnResult(pgxmock.NewResult("", 1))
	pool.ExpectCommit()

	id, err := svc.submitCreate(ctx, &createDocumentParams{
		JobID:    database.MustToDBUUID(doc.JobID),
		Location: location,
		Bucket:   bucket,
		Hash:     doc.Hash,
	})
	assert.NoError(t, err)
	assert.Equal(t, doc.ID, id)
}

func TestSubmitCreateExists(t *testing.T) {
	ctx := context.Background()

	pool, err := pgxmock.NewPool()
	if err != nil {
		t.Fatalf("failed to open pgxmock database: %v", err)
	}
	cfg := &DocInitConfig{}
	cfg.DBPool = pool
	cfg.DBQueries = repository.New(pool)

	svc := New(cfg, &Services{
		Job: job.New(cfg, &job.Services{
			Client: client.New(cfg),
		}),
	})

	doc := document.Document{
		ID:    uuid.New(),
		JobID: uuid.New(),
		Hash:  "example_hash",
	}
	bucket := "eample_bucket"
	location := "/i/am/here"

	pool.ExpectBegin()
	pool.ExpectExec("name: AddDocumentEntry :exec").WithArgs(database.MustToDBUUID(doc.ID), bucket, location).
		WillReturnResult(pgxmock.NewResult("", 1))
	pool.ExpectCommit()

	docid := database.MustToDBUUID(doc.ID)
	id, err := svc.submitCreate(ctx, &createDocumentParams{
		ID:       &docid,
		JobID:    database.MustToDBUUID(doc.JobID),
		Location: location,
		Bucket:   bucket,
		Hash:     doc.Hash,
	})
	assert.NoError(t, err)
	assert.Equal(t, doc.ID, id)
}