bring back samsung_old - by adding InputTarget system

src/formats/mtk_bdp.rs

@@ -1,5 +1,5 @@
 use std::any::Any;
-use crate::{AppContext, formats::Format};
+use crate::{InputTarget, AppContext, formats::Format};
 pub fn format() -> Format {
     Format { name: "mtk_bdp", detector_func: is_mtk_bdp_file, extractor_func: extract_mtk_bdp }
 }
@@ -78,7 +78,7 @@ fn find_bytes(data: &[u8], pattern: &[u8]) -> Option<usize> {
 }
 
 pub fn is_mtk_bdp_file(app_ctx: &AppContext) -> Result<Option<Box<dyn Any>>, Box<dyn std::error::Error>> {
-    let mut file = app_ctx.file;
+    let mut file = match &app_ctx.input {InputTarget::File(f) => f, InputTarget::Directory(_) => return Ok(None)};
     let file_size = file.metadata()?.len();
     let mut data = Vec::new();
 
@@ -96,8 +96,9 @@ pub fn is_mtk_bdp_file(app_ctx: &AppContext) -> Result<Option<Box<dyn Any>>, Box
 }
 
 pub fn extract_mtk_bdp(app_ctx: &AppContext, ctx: Option<Box<dyn Any>>) -> Result<(), Box<dyn std::error::Error>> {
-    let mut file = app_ctx.file;
+    let mut file = match &app_ctx.input {InputTarget::File(f) => f, InputTarget::Directory(_) => return Err("Extractor expected file, not directory".into())};
     let ctx = ctx.and_then(|c: Box<dyn Any>| c.downcast::<MtkBdpContext>().ok()).ok_or("Context is invalid or missing!")?;
+
     let offset = ctx.pitit_offset;
     println!("\nReading PITIT at: {}", offset);
 
@@ -181,8 +182,8 @@ pub fn extract_mtk_bdp(app_ctx: &AppContext, ctx: Option<Box<dyn Any>>) -> Resul
 
         let data = common::read_file(&file, bit_entry.offset as u64, bit_entry.size as usize)?;
 
-        let output_path = Path::new(app_ctx.output_dir).join(format!("{}.bin", name));
-        fs::create_dir_all(app_ctx.output_dir)?;
+        let output_path = Path::new(&app_ctx.output_dir).join(format!("{}.bin", name));
+        fs::create_dir_all(&app_ctx.output_dir)?;
         let mut out_file = OpenOptions::new().read(true).write(true).create(true).open(output_path)?;
         out_file.seek(SeekFrom::Start(bit_entry.offset_in_target_part as u64))?;
         out_file.write_all(&data)?;