feat(db): implement basic db

cmd/main.go

@@ -1 +1,32 @@
-package cmd
+package main
+
+import (
+	"flag"
+
+	"github.com/lib/pq"
+	"tomatentum.net/outfit-voting-abi26/internal/database"
+)
+
+var config pq.Config
+
+func main() {
+	handleflag()
+
+	database.OpenDB(config)
+	defer database.CloseDB()
+
+	for {
+
+	}
+}
+
+func handleflag() {
+	config.SSLMode = pq.SSLModePrefer
+	flag.StringVar(&config.Host, "dbhost", "localhost", "Postgres host")
+	config.Port = uint16(*flag.Uint("dbport", 5432, "Postgres port"))
+	flag.StringVar(&config.Database, "dbname", "postgres", "Postgres db name")
+	flag.StringVar(&config.User, "dbuser", "postgres", "Postgres user")
+	flag.StringVar(&config.Password, "dbpass", "", "Postgres password")
+
+	flag.Parse()
+}

go.mod

@@ -1,3 +1,5 @@
 module tomatentum.net/outfit-voting-abi26
 
 go 1.25.5
+
+require github.com/lib/pq v1.12.3 // indirect

go.sum

@@ -0,0 +1,2 @@
+github.com/lib/pq v1.12.3 h1:tTWxr2YLKwIvK90ZXEw8GP7UFHtcbTtty8zsI+YjrfQ=
+github.com/lib/pq v1.12.3/go.mod h1:/p+8NSbOcwzAEI7wiMXFlgydTwcgTr3OSKMsD2BitpA=

internal/database/database.go

@@ -0,0 +1,31 @@
+package database
+
+import (
+	"database/sql"
+	"log"
+
+	"github.com/lib/pq"
+)
+
+var db *sql.DB
+
+func OpenDB(conf pq.Config) {
+	connector, err := pq.NewConnectorConfig(conf)
+
+	if err != nil {
+		panic(err)
+	}
+	db = sql.OpenDB(connector)
+
+	if err := db.Ping(); err != nil {
+		panic(err)
+	}
+
+	log.Printf("Database opened to %s:%d, %s as %s!\n", conf.Host, conf.Port, conf.Database, conf.User)
+}
+
+func CloseDB() {
+	if err := db.Close(); err != nil {
+		panic(err)
+	}
+}