Scaffold full-stack volunteer scheduling application

Go backend with domain-based packages (volunteer, schedule, timeoff, checkin, notification), SQLite storage, JWT auth, and chi router. React TypeScript frontend with routing, auth context, and pages for all core features. Multi-stage Dockerfile and docker-compose included. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-05 11:25:02 -04:00
parent 64f4563bfa
commit 4989ff1061
49 changed files with 19996 additions and 12 deletions
--- a/internal/checkin/checkin.go
+++ b/internal/checkin/checkin.go
@@ -0,0 +1,148 @@
+package checkin
+
+import (
+	"database/sql"
+	"errors"
+	"fmt"
+	"time"
+)
+
+type CheckIn struct {
+	ID             int64      `json:"id"`
+	VolunteerID    int64      `json:"volunteer_id"`
+	ScheduleID     *int64     `json:"schedule_id,omitempty"`
+	CheckedInAt    time.Time  `json:"checked_in_at"`
+	CheckedOutAt   *time.Time `json:"checked_out_at,omitempty"`
+	Notes          string     `json:"notes,omitempty"`
+}
+
+type CheckInInput struct {
+	ScheduleID *int64 `json:"schedule_id"`
+	Notes      string `json:"notes"`
+}
+
+type CheckOutInput struct {
+	Notes string `json:"notes"`
+}
+
+type Store struct {
+	db *sql.DB
+}
+
+func NewStore(db *sql.DB) *Store {
+	return &Store{db: db}
+}
+
+func (s *Store) CheckIn(volunteerID int64, in CheckInInput) (*CheckIn, error) {
+	// Ensure no active check-in exists
+	var count int
+	s.db.QueryRow(
+		`SELECT COUNT(*) FROM checkins WHERE volunteer_id = ? AND checked_out_at IS NULL`, volunteerID,
+	).Scan(&count)
+	if count > 0 {
+		return nil, fmt.Errorf("already checked in")
+	}
+
+	res, err := s.db.Exec(
+		`INSERT INTO checkins (volunteer_id, schedule_id, notes) VALUES (?, ?, ?)`,
+		volunteerID, in.ScheduleID, in.Notes,
+	)
+	if err != nil {
+		return nil, fmt.Errorf("insert checkin: %w", err)
+	}
+	id, _ := res.LastInsertId()
+	return s.GetByID(id)
+}
+
+func (s *Store) CheckOut(volunteerID int64, in CheckOutInput) (*CheckIn, error) {
+	var id int64
+	err := s.db.QueryRow(
+		`SELECT id FROM checkins WHERE volunteer_id = ? AND checked_out_at IS NULL ORDER BY checked_in_at DESC LIMIT 1`,
+		volunteerID,
+	).Scan(&id)
+	if errors.Is(err, sql.ErrNoRows) {
+		return nil, fmt.Errorf("not checked in")
+	}
+	if err != nil {
+		return nil, fmt.Errorf("find active checkin: %w", err)
+	}
+	_, err = s.db.Exec(
+		`UPDATE checkins SET checked_out_at=datetime('now'), notes=COALESCE(NULLIF(?, ''), notes) WHERE id=?`,
+		in.Notes, id,
+	)
+	if err != nil {
+		return nil, fmt.Errorf("checkout: %w", err)
+	}
+	return s.GetByID(id)
+}
+
+func (s *Store) GetByID(id int64) (*CheckIn, error) {
+	ci := &CheckIn{}
+	var checkedInAt string
+	var checkedOutAt sql.NullString
+	var scheduleID sql.NullInt64
+	var notes sql.NullString
+
+	err := s.db.QueryRow(
+		`SELECT id, volunteer_id, schedule_id, checked_in_at, checked_out_at, notes FROM checkins WHERE id = ?`, id,
+	).Scan(&ci.ID, &ci.VolunteerID, &scheduleID, &checkedInAt, &checkedOutAt, &notes)
+	if errors.Is(err, sql.ErrNoRows) {
+		return nil, nil
+	}
+	if err != nil {
+		return nil, fmt.Errorf("get checkin: %w", err)
+	}
+	ci.CheckedInAt, _ = time.Parse("2006-01-02 15:04:05", checkedInAt)
+	if checkedOutAt.Valid {
+		t, _ := time.Parse("2006-01-02 15:04:05", checkedOutAt.String)
+		ci.CheckedOutAt = &t
+	}
+	if scheduleID.Valid {
+		ci.ScheduleID = &scheduleID.Int64
+	}
+	if notes.Valid {
+		ci.Notes = notes.String
+	}
+	return ci, nil
+}
+
+func (s *Store) History(volunteerID int64) ([]CheckIn, error) {
+	query := `SELECT id, volunteer_id, schedule_id, checked_in_at, checked_out_at, notes FROM checkins`
+	args := []any{}
+	if volunteerID > 0 {
+		query += ` WHERE volunteer_id = ?`
+		args = append(args, volunteerID)
+	}
+	query += ` ORDER BY checked_in_at DESC`
+
+	rows, err := s.db.Query(query, args...)
+	if err != nil {
+		return nil, fmt.Errorf("list checkins: %w", err)
+	}
+	defer rows.Close()
+
+	var checkins []CheckIn
+	for rows.Next() {
+		var ci CheckIn
+		var checkedInAt string
+		var checkedOutAt sql.NullString
+		var scheduleID sql.NullInt64
+		var notes sql.NullString
+		if err := rows.Scan(&ci.ID, &ci.VolunteerID, &scheduleID, &checkedInAt, &checkedOutAt, &notes); err != nil {
+			return nil, err
+		}
+		ci.CheckedInAt, _ = time.Parse("2006-01-02 15:04:05", checkedInAt)
+		if checkedOutAt.Valid {
+			t, _ := time.Parse("2006-01-02 15:04:05", checkedOutAt.String)
+			ci.CheckedOutAt = &t
+		}
+		if scheduleID.Valid {
+			ci.ScheduleID = &scheduleID.Int64
+		}
+		if notes.Valid {
+			ci.Notes = notes.String
+		}
+		checkins = append(checkins, ci)
+	}
+	return checkins, rows.Err()
+}