RESTRUCTURING 1

- change formats to have their own folders with mod + include files + anything they want
- change format list to be defined in formats.rs instead of in each format
- move utils to their respective formats
- some minor code changes in some formats

src/formats/funai_upg/mod.rs

@@ -0,0 +1,53 @@
+mod include;
+use std::any::Any;
+use crate::AppContext;
+
+use std::path::Path;
+use std::fs::{self, OpenOptions};
+use std::io::Write;
+use binrw::BinReaderExt;
+
+use crate::utils::common;
+use include::*;
+
+pub fn is_funai_upg_file(app_ctx: &AppContext) -> Result<Option<Box<dyn Any>>, Box<dyn std::error::Error>> {
+    let file = match app_ctx.file() {Some(f) => f, None => return Ok(None)};
+    let header = common::read_file(&file, 0, 6)?;
+    if header == b"UPG\x00\x00\x00" {
+        Ok(Some(Box::new(())))
+    } else {
+        Ok(None)
+    }
+}
+
+pub fn extract_funai_upg(app_ctx: &AppContext, _ctx: Box<dyn Any>) -> Result<(), Box<dyn std::error::Error>> {
+    let mut file = app_ctx.file().ok_or("Extractor expected file")?;
+
+    let header: Header = file.read_le()?;
+    println!("File info:\nFile size: {}\nEntry count: {}", header.file_size, header.entry_count);
+
+    for i in 0..header.entry_count {
+        let entry: Entry = file.read_le()?;
+        println!("\n({}/{}) - Type: {}, Size: {}", i + 1, header.entry_count, entry.entry_type, entry.entry_size);
+
+        let data = common::read_exact(&mut file, entry.entry_size as usize - 2 - 4)?; //size has the unk field + crc32 at the end
+        let _crc32 = common::read_exact(&mut file, 4)?; //btw the CRC32 includes the entry header
+
+        if entry.entry_type == 0 {
+            let entry_string = common::string_from_bytes(&data);
+            println!("Descriptor entry info:\n{}", entry_string);
+        }
+
+        let output_path = Path::new(&app_ctx.output_dir).join(format!("{}_{}.bin", i + 1, entry.entry_type));
+
+        fs::create_dir_all(&app_ctx.output_dir)?;
+        let mut out_file = OpenOptions::new().write(true).create(true).open(output_path)?;
+        out_file.write_all(&data)?;
+
+        println!("- Saved file!");
+    }
+
+    println!("\nExtraction finished!");
+
+    Ok(())
+}