package store

import "context"

// List row caps keep hunt/profile/admin pages bounded.
const (
	HuntListLimit    = 100
	ProfileListLimit = 50
	AdminUsersLimit  = 50
)

// ListUsersQuery is a paginated admin user search.
type ListUsersQuery struct {
	Search        string
	CursorCreated string
	CursorID      string
	Limit         int
}

// Store is the application persistence API used by the web layer.
type Store interface {
	CreateUser(ctx context.Context, u *User) error
	UserByID(ctx context.Context, id string) (*User, error)
	UserByUsername(ctx context.Context, username string) (*User, error)
	ListUsers(ctx context.Context, q ListUsersQuery) (users []User, nextCursorCreated, nextCursorID string, err error)
	CountAdmins(ctx context.Context) (int, error)
	SetUserRole(ctx context.Context, id string, role Role) error
	SaveUserProfile(ctx context.Context, u *User) error

	CreateQuestion(ctx context.Context, q *RankedQuestion) error
	GetQuestion(ctx context.Context, id, viewerID string) (*RankedQuestion, error)
	ListHunt(ctx context.Context, huntDate, viewerID string) ([]RankedQuestion, error)
	ListQuestionsByAuthor(ctx context.Context, authorID string) ([]RankedQuestion, error)
	ListQuestionsAnsweredBy(ctx context.Context, adminID string) ([]RankedQuestion, error)
	HideQuestion(ctx context.Context, id string) error

	GetAnswer(ctx context.Context, questionID string) (*Answer, error)
	UpsertAnswer(ctx context.Context, a *Answer) error

	CreatePost(ctx context.Context, post *Post) error
	GetPost(ctx context.Context, id string) (*Post, error)
	GetPostThread(ctx context.Context, rootID string) (*Post, error)
	UpdatePost(ctx context.Context, post *Post) error
	ListRootPosts(ctx context.Context, postDate, viewerID string) ([]Post, error)
	VotePost(ctx context.Context, userID, postID string, value int) error

	// Vote sets the vote to 1, -1, or 0 (clear) on a visible question.
	Vote(ctx context.Context, userID, questionID string, value int) error
}