From 9003b81813ff171edfc6101868c226c5c7d1957c Mon Sep 17 00:00:00 2001
From: Igor Tolmachov <me@igorek.dev>
Date: Fri, 8 Sep 2023 17:33:59 +0900
Subject: Add basic zip reader

---
 src/zip/file.rs | 100 ++++++++++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 90 insertions(+), 10 deletions(-)

(limited to 'src/zip/file.rs')

diff --git a/src/zip/file.rs b/src/zip/file.rs
index dba8d06..261390f 100644
--- a/src/zip/file.rs
+++ b/src/zip/file.rs
@@ -1,44 +1,124 @@
 use crate::file::{ArchiveFile, ArchiveFileRead, ArchiveFileWrite};
+use crate::result::{ArchiveError, ArchiveResult};
+use chrono::NaiveDateTime;
 use std::io::{Read, Write};
 
-pub struct FileInfo {}
+pub struct GeneralPurposeBitFlag {}
 
-pub struct FileReader {}
+pub enum CompressionMethod {
+    Store,
+    Deflate,
+    Bzip2,
+    LZMA,
+    Zstandard,
+}
+
+impl TryFrom<u16> for CompressionMethod {
+    type Error = ArchiveError;
+
+    fn try_from(value: u16) -> ArchiveResult<Self> {
+        Ok(match value {
+            0 => Self::Store,
+            8 => Self::Deflate,
+            12 => Self::Bzip2,
+            14 => Self::LZMA,
+            93 | 20 => Self::Zstandard,
+            _ => return Err(ArchiveError::UnsupportedCompressionMethod { method: value }),
+        })
+    }
+}
 
-pub struct FileWriter {}
+pub struct FileInfo {
+    number: u64,
+    version_made_by: u16,
+    version_needed: u16,
+    general_purpose_bit_flag: GeneralPurposeBitFlag,
+    compression_method: CompressionMethod,
+    file_modified_at: NaiveDateTime,
+    crc32: u32,
+    compressed_size: u64,
+    uncompressed_size: u64,
+    name: String,
+    comment: String,
+    header_offset: u64,
+}
+
+impl FileInfo {
+    pub fn new(
+        number: u64,
+        version_made_by: u16,
+        version_needed: u16,
+        general_purpose_bit_flag: GeneralPurposeBitFlag,
+        compression_method: CompressionMethod,
+        file_modified_at: NaiveDateTime,
+        crc32: u32,
+        compressed_size: u64,
+        uncompressed_size: u64,
+        name: String,
+        comment: String,
+        header_offset: u64,
+    ) -> Self {
+        Self {
+            number,
+            version_made_by,
+            version_needed,
+            general_purpose_bit_flag,
+            compression_method,
+            file_modified_at,
+            crc32,
+            compressed_size,
+            uncompressed_size,
+            name,
+            comment,
+            header_offset,
+        }
+    }
+}
+
+pub struct FileReader {
+    info: FileInfo,
+}
 
 impl ArchiveFile for FileReader {
     type Info = FileInfo;
 
-    fn info() -> Self::Info {
-        Self::Info {}
+    fn new(info: Self::Info) -> Self {
+        Self { info }
     }
 }
 
 impl Read for FileReader {
     fn read(&mut self, buf: &mut [u8]) -> std::io::Result<usize> {
-        return Ok(0);
+        todo!()
     }
 }
 
 impl ArchiveFileRead for FileReader {}
 
+impl FileReader {}
+
+pub struct FileWriter {
+    info: FileInfo,
+}
+
 impl ArchiveFile for FileWriter {
     type Info = FileInfo;
 
-    fn info() -> Self::Info {
-        Self::Info {}
+    fn new(info: Self::Info) -> Self {
+        Self { info }
     }
 }
 
 impl Write for FileWriter {
     fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
-        return Ok(0);
+        todo!()
     }
 
     fn flush(&mut self) -> std::io::Result<()> {
-        Ok(())
+        todo!()
     }
 }
 
 impl ArchiveFileWrite for FileWriter {}
+
+impl FileWriter {}
-- 
cgit v1.2.3