srvc

type CacheEntry struct {
	Path     string
	Size     int64
	LastUsed time.Time
}

type Example struct {
	Input  string
	Output string
	MdNote map[string]string
}

type IllustrationImage struct {
	S3Key     string
	WidthPx   int
	HeightPx  int
	SzInBytes int
}

type MarkdownStatement struct {
	LangIso639 string // primary key of the statement of task

	Story   string
	Input   string
	Output  string
	Notes   string
	Scoring string
	Talk    string // communication in interactive tasks
	Example string // example in interactive tasks
}

type ObjectStore interface {
	Upload(content []byte, key string, mediaType string) (string, error)
	Download(key string) ([]byte, error)
	Exists(key string) (bool, error)
	Delete(key string) error
}

type OriginNote struct {
	Lang string
	Info string
}

type Solution struct {
	Fname    string
	Content  string
	Subtasks []int // which subtasks should it solve
}

type StatementImage struct {
	S3Key     string // e.g. <task_id>/<sha256-prefix>.png; md-images/ is implicit
	Filename  string // filename of the image, e.g., nekoks.png
	WidthPx   int    // og width [px] stored in s3
	HeightPx  int    // og height [px] stored in s3
	SzInBytes int    // size in bytes
}

type Subtask struct {
	Score   int
	TestIDs []int

	Descriptions map[string]string
}

type Task struct {
	// url slug friendly identifier
	ShortId string

	// full name of the task in multiple languages (key: ISO 639 code)
	FullName map[string]string

	// original language of the task (ISO 639 code), may be empty
	OrigLang string

	// markdown with todos, notes, etc.
	Readme string

	// illustration image
	IllustrImg *IllustrationImage

	// constraints
	MemLimMegabytes int
	CpuTimeLimSecs  float64

	// metadata (origin, difficulty)
	OriginOlympiad   string
	OriginNotes      []OriginNote
	DifficultyRating int
	OriginOrg        string
	OriginYear       string
	OlympStage       string
	OriginDivisions  []string

	// statement
	MdStatements   []MarkdownStatement
	MdImages       []StatementImage
	VisInpSubtasks []VisibleInputSubtask
	Examples       []Example
	Subtasks       []Subtask

	// testing
	Tests      []Test
	Checker    string
	Interactor string

	// scoring
	TestGroups []TestGroup

	// metadata: authors (free-form names)
	Authors []string

	// metadata: problem tags (free-form short labels)
	ProblemTags []string

	// original full archive S3 key (optional)
	OgFilesZipS3Key string

	Solutions []Solution
}

type TaskEvalTestGroupInformation struct {
	TestGroupID int
	Score       int
	Subtask     int
}

type TaskPgRepo interface {
	GetTask(ctx context.Context, shortId string) (Task, error)
	GetTaskPreview(ctx context.Context, shortId string) (TaskPreview, error)
	SearchTasksByName(ctx context.Context, name string) ([]string, error)
	ListTasks(ctx context.Context, limit int, offset int) ([]Task, error)
	ListTaskPreviews(ctx context.Context, limit int, offset int) ([]TaskPreview, error)
	ResolveNames(ctx context.Context, shortIds []string) ([]string, error)
	Exists(ctx context.Context, shortId string) (bool, error)
	CreateTask(ctx context.Context, task Task) error
	DeleteTask(ctx context.Context, shortId string) error
	UpdateStatement(ctx context.Context, taskId string, statement MarkdownStatement) error
	AddStatementImg(ctx context.Context, taskId string, img StatementImage) error
	DeleteStatementImg(ctx context.Context, taskId string, filename string) error
	UpdateIllustrationImg(ctx context.Context, taskId string, img IllustrationImage) error
}

type TaskPreview struct {
	ShortId string

	FullName map[string]string
	OrigLang string

	IllustrImg *IllustrationImage

	DifficultyRating int

	OriginOlympiad  string
	OriginNote      string
	OriginNoteShort string
	OriginOrg       string
	OriginYear      string
	OlympStage      string
	OriginDivisions []string

	MdStatementStory string
}

type TaskService interface {
	GetTask(ctx context.Context, shortId string) (Task, srvcerror.E)
	CreateTask(ctx context.Context, task Task) srvcerror.E
	DeleteTask(ctx context.Context, shortId string) srvcerror.E

	// test files
	UploadTestFile(ctx context.Context, body []byte) srvcerror.E
	GetTestDownlUrl(ctx context.Context, testFileSha256 string) (string, srvcerror.E)
	DownloadTestFile(ctx context.Context, testFileSha256 string) ([]byte, srvcerror.E)

	// illustration image
	UploadIllustrationImg(ctx context.Context, mimeType string, body []byte) (string, srvcerror.E)
	DeleteIllustrationImg(ctx context.Context, taskId string) srvcerror.E
	UpdateIllustrationImg(ctx context.Context, taskId string, img IllustrationImage) srvcerror.E
	GetHttpUrlForIllustrImg(ctx context.Context, illstrImgS3Key string) (string, srvcerror.E)

	// markdown statement
	UpdateStatementMd(ctx context.Context, taskId string, statement MarkdownStatement) srvcerror.E

	// markdown statement image
	UploadStatementImage(ctx context.Context, taskId string, filename string, mimeType string, body []byte) (string, srvcerror.E)
	DeleteStatementImage(ctx context.Context, taskId string, filename string) srvcerror.E
	GetHttpUrlForStatementImage(ctx context.Context, statementImageS3Key string) (string, srvcerror.E)

	// website
	GetTaskPreview(ctx context.Context, shortId string) (TaskPreview, srvcerror.E)
	ListTaskPreviews(ctx context.Context) ([]TaskPreview, srvcerror.E)

	// taskzip archive format
	ImportTaskFromZip(ctx context.Context, zipBytes []byte, overrideId string) (string, srvcerror.E)
	ExportTaskAsZip(ctx context.Context, taskId string) ([]byte, srvcerror.E)

	// unorganized
	GetTaskFullNames(ctx context.Context, shortIds []string) ([]string, srvcerror.E)
	ResolveNames(ctx context.Context, shortIds []string) ([]string, srvcerror.E)
	SearchTasksByName(ctx context.Context, name string) ([]string, srvcerror.E)
}

type TaskSrvcOption func(*taskSrvc)

type Test struct {
	InpSha2 string
	AnsSha2 string
}

type TestFileCache struct {
	// contains filtered or unexported fields
}

type TestGroup struct {
	Points int
	Public bool
	// Subtask int
	TestIDs []int
}

type VisInpSubtaskTest struct {
	TestId int
	Input  string
}

type VisibleInputSubtask struct {
	SubtaskId int
	Tests     []VisInpSubtaskTest
}