feat: Add data models and PostgreSQL storage layer

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-19 19:49:59 +01:00
parent a59ef0f3f5
commit cd435a6569
5 changed files with 766 additions and 0 deletions
--- a/backend/internal/models/models.go
+++ b/backend/internal/models/models.go
@@ -0,0 +1,114 @@
+package models
+
+import (
+	"time"
+)
+
+// ExerciseType represents the type of exercise
+type ExerciseType string
+
+const (
+	ExerciseTypeStrength ExerciseType = "strength"
+	ExerciseTypeCardio   ExerciseType = "cardio"
+)
+
+// Exercise represents an exercise definition
+type Exercise struct {
+	ID          int64        `json:"id"`
+	Name        string       `json:"name"`
+	Type        ExerciseType `json:"type"`
+	MuscleGroup string       `json:"muscle_group,omitempty"`
+	Description string       `json:"description,omitempty"`
+	CreatedAt   time.Time    `json:"created_at"`
+}
+
+// TrainingPlan represents a training plan template
+type TrainingPlan struct {
+	ID          int64          `json:"id"`
+	Name        string         `json:"name"`
+	Description string         `json:"description,omitempty"`
+	Exercises   []PlanExercise `json:"exercises,omitempty"`
+	CreatedAt   time.Time      `json:"created_at"`
+}
+
+// PlanExercise represents an exercise within a training plan
+type PlanExercise struct {
+	ID         int64    `json:"id"`
+	PlanID     int64    `json:"plan_id"`
+	ExerciseID int64    `json:"exercise_id"`
+	Exercise   Exercise `json:"exercise,omitempty"`
+	Sets       int      `json:"sets,omitempty"`
+	Reps       int      `json:"reps,omitempty"`
+	Duration   int      `json:"duration,omitempty"` // in seconds
+	Order      int      `json:"order"`
+}
+
+// Session represents a completed training session
+type Session struct {
+	ID        int64          `json:"id"`
+	PlanID    *int64         `json:"plan_id,omitempty"`
+	Plan      *TrainingPlan  `json:"plan,omitempty"`
+	Date      time.Time      `json:"date"`
+	Notes     string         `json:"notes,omitempty"`
+	Entries   []SessionEntry `json:"entries,omitempty"`
+	CreatedAt time.Time      `json:"created_at"`
+}
+
+// SessionEntry represents an individual exercise entry in a session
+type SessionEntry struct {
+	ID            int64     `json:"id"`
+	SessionID     int64     `json:"session_id"`
+	ExerciseID    int64     `json:"exercise_id"`
+	Exercise      *Exercise `json:"exercise,omitempty"`
+	Weight        float64   `json:"weight,omitempty"`        // in kg
+	Reps          int       `json:"reps,omitempty"`          // for strength
+	SetsCompleted int       `json:"sets_completed,omitempty"`
+	Duration      int       `json:"duration,omitempty"`      // in seconds, for cardio
+	Distance      float64   `json:"distance,omitempty"`      // in km, for cardio
+	HeartRate     int       `json:"heart_rate,omitempty"`    // average HR
+	Notes         string    `json:"notes,omitempty"`
+	CreatedAt     time.Time `json:"created_at"`
+}
+
+// CreateExerciseRequest represents the request to create an exercise
+type CreateExerciseRequest struct {
+	Name        string       `json:"name"`
+	Type        ExerciseType `json:"type"`
+	MuscleGroup string       `json:"muscle_group,omitempty"`
+	Description string       `json:"description,omitempty"`
+}
+
+// CreatePlanRequest represents the request to create a training plan
+type CreatePlanRequest struct {
+	Name        string               `json:"name"`
+	Description string               `json:"description,omitempty"`
+	Exercises   []PlanExerciseInput  `json:"exercises,omitempty"`
+}
+
+// PlanExerciseInput represents exercise input for plan creation
+type PlanExerciseInput struct {
+	ExerciseID int64 `json:"exercise_id"`
+	Sets       int   `json:"sets,omitempty"`
+	Reps       int   `json:"reps,omitempty"`
+	Duration   int   `json:"duration,omitempty"`
+	Order      int   `json:"order"`
+}
+
+// CreateSessionRequest represents the request to create a session
+type CreateSessionRequest struct {
+	PlanID *int64    `json:"plan_id,omitempty"`
+	Date   time.Time `json:"date"`
+	Notes  string    `json:"notes,omitempty"`
+}
+
+// CreateSessionEntryRequest represents the request to add an entry to a session
+type CreateSessionEntryRequest struct {
+	ExerciseID    int64   `json:"exercise_id"`
+	Weight        float64 `json:"weight,omitempty"`
+	Reps          int     `json:"reps,omitempty"`
+	SetsCompleted int     `json:"sets_completed,omitempty"`
+	Duration      int     `json:"duration,omitempty"`
+	Distance      float64 `json:"distance,omitempty"`
+	HeartRate     int     `json:"heart_rate,omitempty"`
+	Notes         string  `json:"notes,omitempty"`
+}