From be137e0883d40e511832a7af273d2696fdefec96 Mon Sep 17 00:00:00 2001
From: Peder Vatn Austad <peder.vatn.austad@gmail.com>
Date: Fri, 24 May 2024 22:50:31 +0200
Subject: [PATCH] 0.2.1 databatage conectage

---
 config/conf.json | 11 ++++++++++
 config/config.go | 35 +++++++++++++++++++++++++++++
 config/db.go     | 57 ++++++++++++++++++++++++++++++++++++++++++++++++
 data/data.go     |  2 +-
 go.mod           |  2 ++
 go.sum           |  2 ++
 main.go          |  4 ++++
 7 files changed, 112 insertions(+), 1 deletion(-)
 create mode 100644 config/conf.json
 create mode 100644 config/config.go
 create mode 100644 config/db.go
 create mode 100644 go.sum

diff --git a/config/conf.json b/config/conf.json
new file mode 100644
index 0000000..6082579
--- /dev/null
+++ b/config/conf.json
@@ -0,0 +1,11 @@
+{
+    "database": {
+        "host": "localhost",
+        "port": "5432",
+        "user": "postgres",
+        "password": "postgres",
+        "dbname": "ti1",
+        "sslmode": "disable"
+    },
+    "temp": "value"
+}
\ No newline at end of file
diff --git a/config/config.go b/config/config.go
new file mode 100644
index 0000000..d928980
--- /dev/null
+++ b/config/config.go
@@ -0,0 +1,35 @@
+package config
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+)
+
+type Config struct {
+	Database struct {
+		Host     string `json:"host"`
+		Port     string `json:"port"`
+		User     string `json:"user"`
+		Password string `json:"password"`
+		DBName   string `json:"dbname"`
+		SSLMode  string `json:"sslmode"`
+	} `json:"database"`
+	Temp string `json:"temp"`
+}
+
+func LoadConfig(file string) (Config, error) {
+	var config Config
+	configFile, err := os.Open(file)
+	if err != nil {
+		return config, fmt.Errorf("failed to open config file: %w", err)
+	}
+	defer configFile.Close()
+
+	jsonParser := json.NewDecoder(configFile)
+	if err := jsonParser.Decode(&config); err != nil {
+		return config, fmt.Errorf("failed to parse config file: %w", err)
+	}
+
+	return config, nil
+}
diff --git a/config/db.go b/config/db.go
new file mode 100644
index 0000000..c43b004
--- /dev/null
+++ b/config/db.go
@@ -0,0 +1,57 @@
+package config
+
+import (
+	"database/sql"
+	"fmt"
+	"log"
+
+	_ "github.com/lib/pq"
+)
+
+func ConnectToPostgreSQL() (*sql.DB, error) {
+	fmt.Println("Connecting to PostgreSQL...")
+	config, err := LoadConfig("config/conf.json")
+	if err != nil {
+		return nil, err
+	}
+
+	fmt.Println("Configuration loaded successfully!")
+
+	connStr := fmt.Sprintf("host=%s port=%s user=%s password=%s dbname=%s sslmode=%s",
+		config.Database.Host, config.Database.Port, config.Database.User, config.Database.Password, config.Database.DBName, config.Database.SSLMode)
+
+	// Open connection to database
+	db, err := sql.Open("postgres", connStr)
+	if err != nil {
+		return nil, err
+	}
+
+	fmt.Println("Connection to PostgreSQL opened successfully!")
+
+	// Ping database to verify connection
+	err = db.Ping()
+
+	fmt.Println(err)
+	if err != nil {
+		return nil, err
+	}
+
+	log.Println("Connected to PostgreSQL!")
+
+	return db, nil
+}
+
+func PrintDBConfig() {
+	config, err := LoadConfig("config/conf.json")
+	if err != nil {
+		fmt.Println("Error loading config:", err)
+		return
+	}
+
+	fmt.Println("Configuration:", config)
+	fmt.Println("Host:", config.Database.Host)
+	fmt.Println("Port:", config.Database.Port)
+	fmt.Println("User:", config.Database.User)
+	fmt.Println("Database Host:", config.Database.Host)
+	fmt.Println("Database Password:", config.Database.Password)
+}
diff --git a/data/data.go b/data/data.go
index ceabda5..5e42599 100644
--- a/data/data.go
+++ b/data/data.go
@@ -127,7 +127,7 @@ type Data struct {
 
 // FetchData function to retrieve data from API
 func FetchData() (*Data, error) {
-	resp, err := http.Get("https://api.entur.io/realtime/v1/rest/et?maxSize=1")
+	resp, err := http.Get("https://api.entur.io/realtime/v1/rest/et?maxSize=0")
 	if err != nil {
 		return nil, err
 	}
diff --git a/go.mod b/go.mod
index d990866..f97cda7 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,5 @@
 module ti1
 
 go 1.22.1
+
+require github.com/lib/pq v1.10.9
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..aeddeae
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,2 @@
+github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
+github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
diff --git a/main.go b/main.go
index a24c404..4d23ae2 100644
--- a/main.go
+++ b/main.go
@@ -2,11 +2,15 @@ package main
 
 import (
 	"log"
+	"ti1/config"
 	"ti1/data" // Import the data package
 	"ti1/export"
 )
 
 func main() {
+	config.PrintDBConfig()
+	config.ConnectToPostgreSQL()
+
 	data, err := data.FetchData() // Use the FetchData function from the data package
 	if err != nil {
 		log.Fatal(err)