feat: implemented many commands

- added register command
- added reset command
- added users command
- added agg command
- added feeds command

main.go

@@ -1,12 +1,15 @@
 package main
 
 import (
+	"database/sql"
 	"fmt"
 	"os"
 
 	"github.com/StevanFreeborn/gator/internal/command"
 	"github.com/StevanFreeborn/gator/internal/config"
+	"github.com/StevanFreeborn/gator/internal/database"
 	"github.com/StevanFreeborn/gator/internal/state"
+	_ "github.com/lib/pq"
 )
 
 func main() {
@@ -19,19 +22,28 @@ func main() {
 
 	if err != nil {
 		fmt.Printf("Error reading config file: %s", err)
+		os.Exit(1)
+	}
+
+	db, err := sql.Open("postgres", c.DbUrl)
+
+	if err != nil {
+		fmt.Printf("Error connecting to database: %s", err)
+		os.Exit(1)
 	}
 
 	cmd := os.Args[1]
 	args := os.Args[2:]
 
-	s := state.NewState(c, args)
+	dbQueries := database.New(db)
+	s := state.NewState(dbQueries, c, args)
 
 	registry := command.NewRegistry()
 	err = registry.RunCommand(cmd, s)
 
 	if err != nil {
 		fmt.Printf("Error running '%s' command: %s\n", cmd, err)
-		os.Exit(2)
+		os.Exit(1)
 	}
 
 	os.Exit(0)