summary refs log tree commit diff stats
path: root/storage/init.go
diff options
context:
space:
mode:
Diffstat (limited to 'storage/init.go')
-rw-r--r--storage/init.go63
1 files changed, 63 insertions, 0 deletions
diff --git a/storage/init.go b/storage/init.go
new file mode 100644
index 0000000..9894c5b
--- /dev/null
+++ b/storage/init.go
@@ -0,0 +1,63 @@
+package storage
+
+import (
+	"database/sql"
+	"fmt"
+	"log"
+
+	_ "github.com/mattn/go-sqlite3"
+)
+
+// initErr will log the error and close the database connection if
+// necessary.
+func initErr(db *DB, err error) {
+	if db.Conn != nil {
+		db.Conn.Close()
+	}
+	log.Fatalf("Initialization Error :: %s", err.Error())
+}
+
+func initDB(db *DB) {
+	var err error
+
+	db.Path = fmt.Sprintf("%s/grus.db", GetDir())
+
+	db.Conn, err = sql.Open("sqlite3", db.Path)
+	if err != nil {
+		log.Printf("storage/init.go: %s\n",
+			"Failed to open database connection")
+		initErr(db, err)
+	}
+
+	sqlstmt := []string{
+		`CREATE TABLE IF NOT EXISTS words (
+        word   TEXT PRIMARY KEY NOT NULL,
+        sorted TEXT NOT NULL);`,
+		`INSERT INTO words(word, lexical)
+        values("grus", "grsu");`,
+	}
+
+	// We range over statements and execute them one by one, this
+	// is during initialization so it doesn't matter if it takes
+	// few more ms. This way we know which statement caused the
+	// program to fail.
+	for _, s := range sqlstmt {
+		stmt, err := db.Conn.Prepare(s)
+
+		if err != nil {
+			log.Printf("storage/init.go: %s\n",
+				"failed to prepare statement")
+			log.Println(s)
+			initErr(db, err)
+		}
+
+		_, err = stmt.Exec()
+		stmt.Close()
+		if err != nil {
+			log.Printf("storage/init.go: %s\n",
+				"failed to execute statement")
+			log.Println(s)
+			initErr(db, err)
+		}
+	}
+}