110 lines
2.6 KiB
Go
110 lines
2.6 KiB
Go
package storage
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import (
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"context"
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"database/sql"
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"fmt"
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"os"
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_ "github.com/lib/pq"
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)
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type DB struct {
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*sql.DB
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}
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func NewDB(ctx context.Context) (*DB, error) {
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host := getEnv("DB_HOST", "localhost")
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port := getEnv("DB_PORT", "5432")
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user := getEnv("DB_USER", "postgres")
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password := getEnv("DB_PASSWORD", "postgres")
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dbname := getEnv("DB_NAME", "training_tracker")
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connStr := fmt.Sprintf(
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"host=%s port=%s user=%s password=%s dbname=%s sslmode=disable",
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host, port, user, password, dbname,
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)
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db, err := openDB(connStr)
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if err != nil {
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return nil, err
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}
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if err := db.PingContext(ctx); err != nil {
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return nil, fmt.Errorf("failed to ping database: %w", err)
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}
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return &DB{db}, nil
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}
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func openDB(connStr string) (*sql.DB, error) {
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db, err := sql.Open("postgres", connStr)
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if err != nil {
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return nil, fmt.Errorf("failed to open database: %w", err)
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}
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return db, nil
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}
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func (db *DB) Migrate(ctx context.Context) error {
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migrations := []string{
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`CREATE TABLE IF NOT EXISTS exercises (
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id SERIAL PRIMARY KEY,
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name VARCHAR(255) NOT NULL,
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type VARCHAR(50) NOT NULL,
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muscle_group VARCHAR(100),
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description TEXT,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
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)`,
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`CREATE TABLE IF NOT EXISTS training_plans (
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id SERIAL PRIMARY KEY,
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name VARCHAR(255) NOT NULL,
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description TEXT,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
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)`,
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`CREATE TABLE IF NOT EXISTS plan_exercises (
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id SERIAL PRIMARY KEY,
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plan_id INTEGER REFERENCES training_plans(id) ON DELETE CASCADE,
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exercise_id INTEGER REFERENCES exercises(id) ON DELETE CASCADE,
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sets INTEGER,
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reps INTEGER,
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duration INTEGER,
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sort_order INTEGER DEFAULT 0
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)`,
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`CREATE TABLE IF NOT EXISTS sessions (
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id SERIAL PRIMARY KEY,
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plan_id INTEGER REFERENCES training_plans(id) ON DELETE SET NULL,
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date TIMESTAMP NOT NULL,
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notes TEXT,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
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)`,
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`CREATE TABLE IF NOT EXISTS session_entries (
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id SERIAL PRIMARY KEY,
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session_id INTEGER REFERENCES sessions(id) ON DELETE CASCADE,
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exercise_id INTEGER REFERENCES exercises(id) ON DELETE CASCADE,
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weight DECIMAL(10, 2),
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reps INTEGER,
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sets_completed INTEGER,
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duration INTEGER,
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distance DECIMAL(10, 2),
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heart_rate INTEGER,
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notes TEXT,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
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)`,
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}
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for _, migration := range migrations {
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if _, err := db.ExecContext(ctx, migration); err != nil {
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return fmt.Errorf("migration failed: %w", err)
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}
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}
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return nil
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}
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func getEnv(key, defaultValue string) string {
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if value := os.Getenv(key); value != "" {
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return value
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}
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return defaultValue
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}
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