get started on downloading JREs

also refactor ensure file logic

2 files changed, 94 insertions, 0 deletions

diff --git a/src/launcher/jre/arch.rs b/src/launcher/jre/arch.rs
new file mode 100644
index 0000000..e984171
--- /dev/null
+++ b/src/launcher/jre/arch.rs
@@ -0,0 +1,45 @@
+use cfg_if::cfg_if;
+
+macro_rules! define_arch {
+    ($arch:expr) => {
+        pub const JRE_ARCH: &str = $arch;
+    }
+}
+
+cfg_if! {
+    if #[cfg(target_os = "windows")] {
+        cfg_if! {
+            if #[cfg(target_arch = "x86_64")] {
+                define_arch!("windows-x64");
+            } else if #[cfg(target_arch = "x86")] {
+                define_arch!("windows-x86");
+            } else if #[cfg(target_arch = "aarch64")] {
+                define_arch!("windows-arm64");
+            } else {
+                define_arch!("gamecore");
+            }
+        }
+    } else if #[cfg(target_os = "linux")] {
+        cfg_if! {
+            if #[cfg(target_arch = "x86_64")] {
+                define_arch!("linux");
+            } else if #[cfg(target_arch = "x86")] {
+                define_arch!("linux-i386");
+            } else {
+                define_arch!("gamecore");
+            }
+        }
+    } else if #[cfg(target_os = "macos")] {
+        cfg_if! {
+            if #[cfg(target_arch = "aarch64")] {
+                define_arch!("mac-os-arm64");
+            } else if #[cfg(target_arch = "x86_64")] {
+                define_arch!("mac-os");
+            } else {
+                define_arch!("gamecore");
+            }
+        }
+    } else {
+        define_arch!("gamecore");
+    }
+}
diff --git a/src/launcher/jre/manifest.rs b/src/launcher/jre/manifest.rs
new file mode 100644
index 0000000..9b84377
--- /dev/null
+++ b/src/launcher/jre/manifest.rs
@@ -0,0 +1,49 @@
+use std::collections::HashMap;
+use serde::Deserialize;
+use crate::version::DownloadInfo;
+
+#[derive(Debug, Deserialize)]
+pub struct Availability {
+    pub group: u32,   // unknown meaning
+    pub progress: u32 // unknown meaning
+}
+
+#[derive(Debug, Deserialize)]
+pub struct Version {
+    pub name: String,
+    pub version: String
+}
+
+#[derive(Debug, Deserialize)]
+pub struct JavaRuntimeInfo {
+    // I don't see how half of this information is useful with how the JRE system currently functions -figboot
+    pub availability: Availability,
+    pub manifest: DownloadInfo,
+    pub version: Version
+}
+
+pub type JavaRuntimesManifest = HashMap<String, HashMap<String, Vec<JavaRuntimeInfo>>>;
+
+#[derive(Debug, Deserialize, Clone, Copy, Eq, PartialEq)]
+#[serde(rename_all = "lowercase")]
+pub enum FileType {
+    File,
+    Directory,
+    Link
+}
+
+#[derive(Debug, Deserialize)]
+pub struct JavaRuntimeFile {
+    #[serde(rename = "type")]
+    pub file_type: FileType,
+    #[serde(default)]
+    pub executable: bool,
+
+    pub lzma: DownloadInfo,
+    pub raw: DownloadInfo
+}
+
+#[derive(Debug, Deserialize)]
+pub struct JavaRuntimeManifest {
+    pub files: HashMap<String, JavaRuntimeFile>
+}