Snip/backend/internal/domain/link.go

package domain

import "time"

// Mode is how a short code was produced.
type Mode string

const (
	ModeRandom    Mode = "random"
	ModeMemorable Mode = "memorable"
	ModeCustom    Mode = "custom"
)

// DayCount is a single day's click total.
type DayCount struct {
	Date  string `json:"date"`
	Count int64  `json:"count"`
}

// Link is the aggregate root: a short code pointing at a destination.
type Link struct {
	ID          string
	Code        string
	LongURL     string
	Mode        Mode
	HasPin      bool
	PinHash     string // bcrypt hash; never serialized out of the system
	OwnerID     string // empty for anonymous links
	CreatedAt   time.Time
	TotalClicks int64
	Last7Days   []DayCount
}

// OwnerStats are the dashboard aggregate tiles, computed in the DB so the
// client never has to fetch every link to total them up.
type OwnerStats struct {
	TotalLinks  int   `json:"totalLinks"`
	TotalClicks int64 `json:"totalClicks"`
	WeekClicks  int64 `json:"weekClicks"`
}

// User is an authenticated account, keyed by (provider, subject).
type User struct {
	ID       string
	Email    string
	Name     string
	Provider string
	Subject  string
}