From 4b22e35c3bb41628f7030a82ac3ddbf410dbbbf0 Mon Sep 17 00:00:00 2001
From: Kevin Ruffin <kevin.github.com>
Date: Thu, 17 Feb 2022 22:33:45 -0500
Subject: [PATCH] Can pull products, all installer links and the download +
 checksum links.

---
 main.go | 81 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 81 insertions(+)

diff --git a/main.go b/main.go
index a2768cc..d37f818 100644
--- a/main.go
+++ b/main.go
@@ -15,6 +15,8 @@ import (
 	"github.com/webview/webview"
 	"golang.org/x/oauth2"
 	"io/ioutil"
+	"strconv"
+	"fmt"
 )
 
 var (
@@ -125,6 +127,81 @@ func getGameList() *GameList {
 	return gl
 }
 
+type Product struct {
+	Id int `json:"id"`
+	Title string `json:"title"`
+	Downloads struct {
+		Installers [] struct {
+			Name string `json:"name"`
+			Os string `json:"os"`
+			Files [] struct {
+				Id string `json:"id"`
+				Size int64 `json:"size"`
+				Downlink string `json:"downlink"`
+			} `json:"files"`
+		} `json:"installers"`
+	} `json:"downloads`
+}
+
+func getProduct(id int) *Product {
+	url := "https://api.gog.com/products/" + strconv.Itoa(id) + "?expand=downloads"
+	res, err := client.Get(url)
+	if err != nil {
+		log.Fatalf("Failed to get product info: %v", err)
+	}
+	defer res.Body.Close()
+	body, err := ioutil.ReadAll(res.Body)
+	if err != nil {
+		log.Fatalf("Failed to parse product body: %v", err)
+	}
+
+	//log.Println(string(body))
+	var p = new(Product)
+	err = json.Unmarshal(body, p)
+	if err != nil {
+		log.Fatalf("Failed to parse product response: %v", err)
+	}
+
+	return p
+}
+
+type DownloadLinks struct {
+	Downlink string `json:"downlink"`
+	Checksum string `json:"checksum"`
+}
+
+func (dl *DownloadLinks) String() string {
+	return fmt.Sprintf("{downlink: %s, checksum: %s}", dl.Downlink, dl.Checksum)
+}
+
+func getDownloadLinks(p *Product) []*DownloadLinks {
+	var links []*DownloadLinks
+
+	for _, i := range p.Downloads.Installers {
+		for _, f := range i.Files {
+			res, err := client.Get(f.Downlink)
+			if err != nil {
+				log.Fatalf("Failed to get file download info: %v", err)
+			}
+			defer res.Body.Close()
+			body, err := ioutil.ReadAll(res.Body)
+			if err != nil {
+				log.Fatalf("Failed to parse file download body: %v", err)
+			}
+
+			//log.Println(string(body))
+			var dl = new(DownloadLinks)
+			err = json.Unmarshal(body, dl)
+			if err != nil {
+				log.Fatalf("Failed to parse file download response: %v", err)
+			}
+			links = append(links, dl)
+		}
+	}
+
+	return links
+}
+
 func login(url string) {
 	log.Println(color.CyanString("You will now be taken to your browser for authentication"))
 	time.Sleep(1 * time.Second)
@@ -173,5 +250,9 @@ func main() {
 	
 	gl := getGameList()
 	log.Println(gl.Owned)
+	p := getProduct(gl.Owned[0])
+	log.Println(p)
+	dl := getDownloadLinks(p)
+	log.Printf("%+v", dl)
 }