feat: add parsing draft

Cargo.toml

@@ -2,5 +2,8 @@
 name = "befehlswerk"
 version = "0.1.0"
 edition = "2024"
+description = "PowerShell Scripts for EVERYONE!"
+repository = "https://git.itsscb.de/itsscb/BefehlsWerk"
 
 [dependencies]
+serde_json = "1.0.140"

src/lib.rs

@@ -1,3 +1,38 @@
-fn main() {
-    println!("Hello, world!");
+use std::process::Command;
+
+#[allow(dead_code)]
+const PARSE_FUNCTION_RAW: &str = include_str!("../powershell/get-metadata.ps1");
+
+#[allow(dead_code)]
+fn get_parse_function() -> String {
+    format!("function parse_ps() {{{PARSE_FUNCTION_RAW}}}")
+}
+
+#[allow(dead_code)]
+fn parse_powershell_file(path: &str) -> Result<serde_json::Value, String> {
+    let func = get_parse_function();
+
+    let ps_runner = format!("{func}; parse_ps -Path '{path}' | ConvertTo-Json -Depth 10");
+
+    let output = Command::new("pwsh")
+        .args(["-NoProfile", "-Command", &ps_runner])
+        .output()
+        .map_err(|e| e.to_string())?;
+    if output.status.success() {
+        let stdout_str = String::from_utf8_lossy(&output.stdout);
+        Ok(serde_json::from_str(&stdout_str).map_err(|e| e.to_string())?)
+    } else {
+        Err(String::from("Failed to run PowerShell"))
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[test]
+    fn test_parse_powershell_file() {
+        let got = parse_powershell_file("powershell/get-metadata.ps1");
+        assert!(got.is_ok());
+    }
 }