2 files changed, 131 insertions, 0 deletions
diff --git a/lib/config.js b/lib/config.js
new file mode 100644
index 0000000..9d2ed39
--- /dev/null
+++ b/lib/config.js
@@ -0,0 +1,62 @@
+const path = require("path")
+const fs = require("fs-extra")
+
+const configPath = path.join(__dirname, "../config/config.json")
+const apiPath = path.join(__dirname, "../config/api.json")
+const cachePath = path.join(__dirname, "../cache/mod_versions.json")
+
+const LoadConfig = () =>
+{
+    return require(configPath)
+}
+
+const LoadApi = () =>
+{
+    try
+    {
+        return require(apiPath)
+    }
+    catch
+    {
+        return {}
+    }
+}
+
+const LoadCache = async () =>
+{
+    try
+    {
+        if (await fs.pathExists(cachePath))
+            return JSON.parse(await fs.readFile(cachePath, "utf8"))
+    }
+    catch (err)
+    {
+        console.error("[Cache] Failed to load:", err)
+    }
+    return {}
+}
+
+const SaveCache = async cache =>
+{
+    try
+    {
+        await fs.ensureDir(path.dirname(cachePath))
+        await fs.writeFile(cachePath, JSON.stringify(cache, null, 2))
+    }
+    catch (err)
+    {
+        console.error("[Cache] Failed to save:", err)
+    }
+}
+
+module.exports =
+{
+    configPath,
+    apiPath,
+    cachePath,
+    LoadConfig,
+    LoadApi,
+    LoadCache,
+    SaveCache
+}
+
diff --git a/lib/modrinth.js b/lib/modrinth.js
new file mode 100644
index 0000000..cf0f697
--- /dev/null
+++ b/lib/modrinth.js
@@ -0,0 +1,69 @@
+const axios = require("axios")
+
+const MODRINTH_API = "https://api.modrinth.com/v2"
+
+const GetModVersions = async slug =>
+{
+    try
+    {
+        const response = await axios.get(`${MODRINTH_API}/project/${slug}/version`)
+        return response.data
+    }
+    catch (err)
+    {
+        console.error(`[Modrinth] Failed for ${slug}:`, err.message)
+        return null
+    }
+}
+
+const GetLatestVersion = versions =>
+{
+    if (!versions || !versions.length)
+        return null
+    return versions.sort((a, b) => new Date(b.date_published) - new Date(a.date_published))[0]
+}
+
+const GetCompatibleVersion = (versions, minecraftVersion, loader = null) =>
+{
+    if (!versions || !versions.length)
+        return null
+
+    const compatible = versions.filter(v =>
+    {
+        const hasVersion = v.game_versions.includes(minecraftVersion)
+        const hasLoader = loader ? v.loaders.includes(loader) : true
+        return hasVersion && hasLoader
+    })
+
+    if (!compatible.length)
+        return null
+
+    return compatible.sort((a, b) => new Date(b.date_published) - new Date(a.date_published))[0]
+}
+
+const DownloadFile = async (url, destPath) =>
+{
+    const fs = require("fs-extra")
+    
+    try
+    {
+        const response = await axios.get(url, { responseType: "arraybuffer" })
+        await fs.writeFile(destPath, response.data)
+        return true
+    }
+    catch (err)
+    {
+        console.error(`[Download] Failed:`, err.message)
+        return false
+    }
+}
+
+module.exports =
+{
+    MODRINTH_API,
+    GetModVersions,
+    GetLatestVersion,
+    GetCompatibleVersion,
+    DownloadFile
+}
+