lots of stuff, don't truly remember

internal/goal/model.go

@@ -0,0 +1,42 @@
+package goal
+
+import "time"
+
+// GoalType defines categories of goals users can set.
+type GoalType string
+
+const (
+	GoalDistance  GoalType = "distance"
+	GoalFrequency GoalType = "frequency"
+	GoalPower     GoalType = "power"
+	GoalWeight    GoalType = "weight"
+	GoalCustom    GoalType = "custom"
+)
+
+// GoalStatus tracks the lifecycle of a goal.
+type GoalStatus string
+
+const (
+	StatusActive    GoalStatus = "active"
+	StatusCompleted GoalStatus = "completed"
+	StatusArchived  GoalStatus = "archived"
+)
+
+type Goal struct {
+	ID           uint       `gorm:"primaryKey" json:"id"`
+	UserID       uint       `gorm:"not null;index" json:"user_id"`
+	Title        string     `gorm:"not null" json:"title"`
+	Description  string     `gorm:"default:''" json:"description"`
+	GoalType     GoalType   `gorm:"default:'custom'" json:"goal_type"`
+	TargetValue  float64    `gorm:"not null;default:0" json:"target_value"`
+	CurrentValue float64    `gorm:"default:0" json:"current_value"`
+	TargetDate   *time.Time `json:"target_date,omitempty"`
+	Status       GoalStatus `gorm:"default:'active'" json:"status"`
+	CreatedAt    time.Time  `json:"created_at"`
+	UpdatedAt    time.Time  `json:"updated_at"`
+}
+
+func (Goal) TableName() string {
+	return "goals"
+}
+