package postgres

import (
	"context"
	"fmt"
	"testing"

	_ "github.com/lib/pq"

	"git.anthrove.art/Anthrove/otter-space-sdk/v2/pkg/models"
	"git.anthrove.art/Anthrove/otter-space-sdk/v2/test"
	"gorm.io/gorm"
)

func TestCreateAnthrovePostNode(t *testing.T) {

	// Setup trow away container
	ctx := context.Background()
	container, gormDB, err := test.StartPostgresContainer(ctx)
	if err != nil {
		t.Fatalf("Could not start PostgreSQL container: %v", err)
	}
	defer container.Terminate(ctx)

	// Setup Tests

	validPost := &models.Post{
		BaseModel: models.BaseModel[models.AnthrovePostID]{
			ID: models.AnthrovePostID(fmt.Sprintf("%025s", "1")),
		},
		Rating: "safe",
	}

	invalidPost := &models.Post{
		Rating: "error",
	}

	// Test
	type args struct {
		ctx          context.Context
		db           *gorm.DB
		anthrovePost *models.Post
	}
	tests := []struct {
		name    string
		args    args
		wantErr bool
	}{
		{
			name: "Test 1: Valid AnthrovePostID and Rating",
			args: args{
				ctx:          context.Background(),
				db:           gormDB,
				anthrovePost: validPost,
			},
			wantErr: false,
		},
		{
			name: "Test 2: Invalid Rating",
			args: args{
				ctx:          context.Background(),
				db:           gormDB,
				anthrovePost: invalidPost,
			},
			wantErr: true,
		},
		{
			name: "Test 3: Nill",
			args: args{
				ctx:          context.Background(),
				db:           gormDB,
				anthrovePost: nil,
			},
			wantErr: true,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if err := CreatePost(tt.args.ctx, tt.args.db, tt.args.anthrovePost); (err != nil) != tt.wantErr {
				t.Errorf("CreatePost() error = %v, wantErr %v", err, tt.wantErr)
			}
		})
	}
}

func TestGetPostByAnthroveID(t *testing.T) {
	// Setup trow away container
	ctx := context.Background()
	container, gormDB, err := test.StartPostgresContainer(ctx)
	if err != nil {
		t.Fatalf("Could not start PostgreSQL container: %v", err)
	}
	defer container.Terminate(ctx)

	// Setup Tests

	post := &models.Post{
		BaseModel: models.BaseModel[models.AnthrovePostID]{
			ID: models.AnthrovePostID(fmt.Sprintf("%025s", "1")),
		},
		Rating: "safe",
	}

	err = CreatePost(ctx, gormDB, post)
	if err != nil {
		t.Fatal("Could not create post", err)
	}

	// Test
	type args struct {
		ctx            context.Context
		db             *gorm.DB
		anthrovePostID models.AnthrovePostID
	}
	tests := []struct {
		name    string
		args    args
		want    *models.Post
		wantErr bool
	}{
		{
			name: "Test 1: Valid anthrovePostID",
			args: args{
				ctx:            ctx,
				db:             gormDB,
				anthrovePostID: post.ID,
			},
			want:    post,
			wantErr: false,
		},
		{
			name: "Test 2: Invalid anthrovePostID",
			args: args{
				ctx:            ctx,
				db:             gormDB,
				anthrovePostID: "1234",
			},
			want:    nil,
			wantErr: true,
		},
		{
			name: "Test 3: No anthrovePostID",
			args: args{
				ctx:            ctx,
				db:             gormDB,
				anthrovePostID: "",
			},
			want:    nil,
			wantErr: true,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got, err := GetPostByAnthroveID(tt.args.ctx, tt.args.db, tt.args.anthrovePostID)
			if (err != nil) != tt.wantErr {
				t.Errorf("GetPostByAnthroveID() error = %v, wantErr %v", err, tt.wantErr)
				return
			}
			if !checkPost(got, tt.want) {
				t.Errorf("GetPostByAnthroveID() got = %v, want %v", got, tt.want)
			}
		})
	}
}

func TestGetPostBySourceURL(t *testing.T) {
	// Setup trow away container
	ctx := context.Background()
	container, gormDB, err := test.StartPostgresContainer(ctx)
	if err != nil {
		t.Fatalf("Could not start PostgreSQL container: %v", err)
	}
	defer container.Terminate(ctx)

	// Setup Tests
	post := &models.Post{
		BaseModel: models.BaseModel[models.AnthrovePostID]{
			ID: models.AnthrovePostID(fmt.Sprintf("%025s", "1")),
		},

		Rating: "safe",
	}

	err = CreatePost(ctx, gormDB, post)
	if err != nil {
		t.Fatal("Could not create post", err)
	}

	source := models.Source{
		BaseModel: models.BaseModel[models.AnthroveSourceID]{
			ID: models.AnthroveSourceID(fmt.Sprintf("%025s", "1")),
		},
		DisplayName: "e621",
		Domain:      "e621.net",
		Icon:        "https://e621.net/icon.ico",
	}

	err = CreateSource(ctx, gormDB, &source)
	if err != nil {
		t.Fatal("Could not create source", err)
	}

	err = CreateReferenceBetweenPostAndSource(ctx, gormDB, post.ID, models.AnthroveSourceDomain(source.Domain), "http://test.org", models.PostReferenceConfig{})
	if err != nil {
		t.Fatal("Could not create source reference", err)
	}

	// Test
	type args struct {
		ctx       context.Context
		db        *gorm.DB
		sourceURL string
	}
	tests := []struct {
		name    string
		args    args
		want    *models.Post
		wantErr bool
	}{
		{
			name: "Test 1: Valid sourceURL",
			args: args{
				ctx:       ctx,
				db:        gormDB,
				sourceURL: "http://test.org",
			},
			want:    post,
			wantErr: false,
		},
		{
			name: "Test 2: Invalid sourceURL",
			args: args{
				ctx:       ctx,
				db:        gormDB,
				sourceURL: "1234",
			},
			want:    nil,
			wantErr: true,
		},
		{
			name: "Test 3: No sourceURL",
			args: args{
				ctx:       ctx,
				db:        gormDB,
				sourceURL: "",
			},
			want:    nil,
			wantErr: true,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got, err := GetPostBySourceURL(tt.args.ctx, tt.args.db, tt.args.sourceURL)
			if (err != nil) != tt.wantErr {
				t.Errorf("GetPostBySourceURL() error = %v, wantErr %v", err, tt.wantErr)
				return
			}
			if !checkPost(got, tt.want) {
				t.Errorf("GetPostBySourceURL() got = %v, want %v", got, tt.want)
			}
		})
	}
}

func TestGetPostBySourceID(t *testing.T) {
	// Setup trow away container
	ctx := context.Background()
	container, gormDB, err := test.StartPostgresContainer(ctx)
	if err != nil {
		t.Fatalf("Could not start PostgreSQL container: %v", err)
	}
	defer container.Terminate(ctx)

	// Setup Tests

	post := &models.Post{
		BaseModel: models.BaseModel[models.AnthrovePostID]{
			ID: models.AnthrovePostID(fmt.Sprintf("%025s", "1")),
		},
		Rating: "safe",
	}

	err = CreatePost(ctx, gormDB, post)
	if err != nil {
		t.Fatal("Could not create post", err)
	}

	source := models.Source{
		BaseModel: models.BaseModel[models.AnthroveSourceID]{
			ID: models.AnthroveSourceID(fmt.Sprintf("%025s", "1")),
		},
		DisplayName: "e621",
		Domain:      "e621.net",
		Icon:        "https://e621.net/icon.ico",
	}

	err = CreateSource(ctx, gormDB, &source)
	if err != nil {
		t.Fatal("Could not create source", err)
	}

	err = CreateReferenceBetweenPostAndSource(ctx, gormDB, post.ID, models.AnthroveSourceDomain(source.Domain), "http://test.otg", models.PostReferenceConfig{})
	if err != nil {
		t.Fatal("Could not create source reference", err)
	}

	// Test
	type args struct {
		ctx      context.Context
		db       *gorm.DB
		sourceID models.AnthroveSourceID
	}

	tests := []struct {
		name    string
		args    args
		want    *models.Post
		wantErr bool
	}{
		{
			name: "Test 1: Valid sourceID",
			args: args{
				ctx:      ctx,
				db:       gormDB,
				sourceID: source.ID,
			},
			want:    post,
			wantErr: false,
		},
		{
			name: "Test 2: Invalid sourceID",
			args: args{
				ctx:      ctx,
				db:       gormDB,
				sourceID: "1234",
			},
			want:    nil,
			wantErr: true,
		},
		{
			name: "Test 3: No sourceID",
			args: args{
				ctx:      ctx,
				db:       gormDB,
				sourceID: "",
			},
			want:    nil,
			wantErr: true,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got, err := GetPostBySourceID(tt.args.ctx, tt.args.db, tt.args.sourceID)
			if (err != nil) != tt.wantErr {
				t.Errorf("GetPostBySourceID() error = %v, wantErr %v", err, tt.wantErr)
				return
			}
			if !checkPost(got, tt.want) {
				t.Errorf("GetPostBySourceID() got = %v, want %v", got, tt.want)
			}
		})
	}
}

func TestCreatePostInBatch(t *testing.T) {
	// Setup trow away container
	ctx := context.Background()
	container, gormDB, err := test.StartPostgresContainer(ctx)
	if err != nil {
		t.Fatalf("Could not start PostgreSQL container: %v", err)
	}
	defer container.Terminate(ctx)

	// Setup Tests

	validPosts := []models.Post{
		{
			Rating: models.SFW,
		},
		{
			Rating: models.NSFW,
		},
		{
			Rating: models.Questionable,
		},
	}

	emptyPost := []models.Post{}

	// Test
	type args struct {
		ctx          context.Context
		db           *gorm.DB
		anthrovePost []models.Post
		batchSize    int
	}
	tests := []struct {
		name    string
		args    args
		wantErr bool
	}{
		{
			name: "Test 1: Valid Data",
			args: args{
				ctx:          ctx,
				db:           gormDB,
				anthrovePost: validPosts,
				batchSize:    len(validPosts),
			},
			wantErr: false,
		},
		{
			name: "Test 2: Emtpy Data",
			args: args{
				ctx:          ctx,
				db:           gormDB,
				anthrovePost: emptyPost,
				batchSize:    0,
			},
			wantErr: true,
		},
		{
			name: "Test 3: Nil Data",
			args: args{
				ctx:          ctx,
				db:           gormDB,
				anthrovePost: nil,
				batchSize:    0,
			},
			wantErr: true,
		},
		{
			name: "Test 4: batchSize 0",
			args: args{
				ctx:          ctx,
				db:           gormDB,
				anthrovePost: validPosts,
				batchSize:    0,
			},
			wantErr: true,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if err := CreatePostInBatch(tt.args.ctx, tt.args.db, tt.args.anthrovePost, tt.args.batchSize); (err != nil) != tt.wantErr {
				t.Errorf("CreatePostInBatch() error = %v, wantErr %v", err, tt.wantErr)
			}
		})
	}
}

func checkPost(got *models.Post, want *models.Post) bool {

	if got == nil && want == nil {
		return true
	} else if got == nil || want == nil {
		return false
	}

	if got.ID != want.ID {
		return false
	}

	if got.Rating != want.Rating {
		return false
	}

	return true
}