From 1d766a843e665e2bd8dbda2365343d9371221034 Mon Sep 17 00:00:00 2001
From: Niklas Kapelle <niklas@kapelle.org>
Date: Mon, 5 Jan 2026 16:03:14 +0100
Subject: [PATCH] implemented game art download

---
 cmd/oplcli.go      |  7 ++++
 internal/art.go    | 94 ++++++++++++++++++++++++++++++++++++++++++++++
 internal/oplcli.go | 14 +++++++
 3 files changed, 115 insertions(+)
 create mode 100644 internal/art.go

diff --git a/cmd/oplcli.go b/cmd/oplcli.go
index 3cf9a27..0b06891 100644
--- a/cmd/oplcli.go
+++ b/cmd/oplcli.go
@@ -13,9 +13,14 @@ type RenameCmd struct {
 	File string `arg:"positional"`
 }
 
+type ArtCmd struct {
+	File string `arg:"positional"`
+}
+
 type args struct {
 	Scan   *ScanCmd   `arg:"subcommand:scan"`
 	Rename *RenameCmd `arg:"subcommand:rename"`
+	Art    *ArtCmd    `arg:"subcommand:art"`
 }
 
 func Run() {
@@ -27,5 +32,7 @@ func Run() {
 		oplcli.Scan(args.Scan.File, oplcli.Config{})
 	case args.Rename != nil:
 		oplcli.Rename(args.Rename.File, oplcli.Config{})
+	case args.Art != nil:
+		oplcli.DownloadGameArt(args.Art.File, oplcli.Config{})
 	}
 }
diff --git a/internal/art.go b/internal/art.go
new file mode 100644
index 0000000..f81da73
--- /dev/null
+++ b/internal/art.go
@@ -0,0 +1,94 @@
+package oplcli
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"path"
+)
+
+type artUrls struct {
+	cover      string
+	cover2     string
+	background string
+	disc       string
+	spine      string
+	logo       string
+	screenshot string
+}
+
+func getArtUrlForGameFromGithub(gameID string) artUrls {
+	const baseURL = "https://raw.githubusercontent.com/Luden02/psx-ps2-opl-art-database/refs/heads/main/PS2"
+
+	prefix := gameID[0:4]
+	num1 := gameID[5:8]
+	num2 := gameID[8:10]
+
+	newGameID := fmt.Sprintf("%s_%s.%s", prefix, num1, num2)
+
+	genURL := func(kind string) string {
+		return fmt.Sprintf("%s/%s/%s_%s.png", baseURL, newGameID, newGameID, kind)
+	}
+
+	return artUrls{
+		cover:      genURL("COV"),
+		cover2:     genURL("COV2"),
+		background: genURL("BG_00"),
+		disc:       genURL("ICO"),
+		spine:      genURL("LAB"),
+		logo:       genURL("LGO"),
+		screenshot: genURL("SCR_00"),
+	}
+}
+
+func downloadArtForGame(gameID string, targetDir string) error {
+
+	urls := getArtUrlForGameFromGithub(gameID)
+
+	dl := func(url, kind string) (bool, error) {
+		return downloadFile(url, path.Join(targetDir, fmt.Sprintf("%s_%s.png", gameID, kind)))
+	}
+
+	dl(urls.cover, "COV")
+	dl(urls.cover2, "COV2")
+	dl(urls.disc, "ICO")
+	dl(urls.background, "BG")
+	dl(urls.screenshot, "SCR")
+	dl(urls.spine, "LAB")
+
+	return nil
+}
+
+func downloadFile(url, target string) (bool, error) {
+	out, err := os.Create(target)
+	if err != nil {
+		return false, err
+	}
+	defer out.Close()
+
+	resp, err := http.Get(url)
+	if err != nil {
+		return false, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode == 404 {
+		return false, nil
+	}
+
+	if resp.StatusCode >= 400 {
+		return false, fmt.Errorf("status code: %s", resp.Status)
+	}
+
+	n, err := io.Copy(out, resp.Body)
+	if err != nil {
+		return false, err
+	}
+
+	if n == 0 {
+		return false, fmt.Errorf("Got empty file")
+	}
+
+	return true, nil
+}
diff --git a/internal/oplcli.go b/internal/oplcli.go
index 8b8e9a2..089d968 100644
--- a/internal/oplcli.go
+++ b/internal/oplcli.go
@@ -57,3 +57,17 @@ func Rename(file string, config Config) {
 
 	fmt.Printf("Renamed %s to %s", file, newPath)
 }
+
+func DownloadGameArt(file string, config Config) {
+	fmt.Printf("Scanning file: %s\n", file)
+
+	gameID, err := scanGameFileForID(file)
+	if err != nil {
+		fmt.Printf("Failed to scan game file: %s", err)
+		os.Exit(1)
+	}
+
+	fmt.Printf("Found game ID: %s\n", gameID)
+
+	downloadArtForGame(gameID, "./art")
+}