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package database
import (
"database/sql"
_ "embed"
"fmt"
"os"
"path/filepath"
"punchcard/internal/queries"
_ "modernc.org/sqlite"
)
//go:embed schema.sql
var schema string
func GetDB() (*queries.Queries, error) {
dataDir := os.Getenv("XDG_DATA_HOME")
if dataDir == "" {
homeDir, err := os.UserHomeDir()
if err != nil {
return nil, fmt.Errorf("failed to get user home directory: %w", err)
}
dataDir = filepath.Join(homeDir, ".local", "share")
}
punchcardDir := filepath.Join(dataDir, "punchcard")
if err := os.MkdirAll(punchcardDir, 0o755); err != nil {
return nil, fmt.Errorf("failed to create punchcard directory at %s: %w", punchcardDir, err)
}
dbPath := filepath.Join(punchcardDir, "punchcard.db")
db, err := sql.Open("sqlite", dbPath)
if err != nil {
return nil, fmt.Errorf("failed to open database at %s: %w", dbPath, err)
}
if err := InitializeDB(db); err != nil {
return nil, err
}
return queries.New(db), nil
}
func InitializeDB(db *sql.DB) error {
if _, err := db.Exec(schema); err != nil {
return fmt.Errorf("failed to execute schema: %w", err)
}
pragmas := []string{
"PRAGMA foreign_keys = ON;",
"PRAGMA journal_mode = WAL;",
"PRAGMA synchronous = NORMAL;",
"PRAGMA cache_size = -64000;",
"PRAGMA temp_store = MEMORY;",
"PRAGMA mmap_size = 67108864;",
"PRAGMA optimize;",
}
for _, pragma := range pragmas {
if _, err := db.Exec(pragma); err != nil {
return fmt.Errorf("failed to execute pragma %s: %w", pragma, err)
}
}
return nil
}
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