Add simple zip reader

1 files changed, 45 insertions, 0 deletions

diff --git a/src/zip/file.rs b/src/zip/file.rs
new file mode 100644
index 0000000..3b63c2a
--- /dev/null
+++ b/src/zip/file.rs
@@ -0,0 +1,45 @@
+use crate::driver::ArchiveFile;
+use chrono::{NaiveDate, NaiveDateTime, NaiveTime};
+
+pub struct ZipFile {
+    pub name: String,
+    pub datetime: NaiveDateTime,
+    pub compression_method: u16,
+    pub compressed_size: u64,
+    pub size: u64,
+    pub comment: String,
+}
+
+impl ArchiveFile for ZipFile {}
+
+impl ZipFile {
+    pub fn new(
+        name: String,
+        dos_date: u16,
+        dos_time: u16,
+        compression_method: u16,
+        compressed_size: u64,
+        size: u64,
+        comment: String,
+    ) -> Self {
+        let year = (dos_date >> 9 & 0x7F) + 1980;
+        let month = dos_date >> 5 & 0xF;
+        let day = dos_date & 0x1F;
+
+        let hour = (dos_time >> 11) & 0x1F;
+        let minute = (dos_time >> 5) & 0x3F;
+        let seconds = (dos_time & 0x1F) * 2;
+
+        Self {
+            name,
+            datetime: NaiveDateTime::new(
+                NaiveDate::from_ymd_opt(year as i32, month as u32, day as u32).unwrap(),
+                NaiveTime::from_hms_opt(hour as u32, minute as u32, seconds as u32).unwrap(),
+            ),
+            compression_method,
+            compressed_size,
+            size,
+            comment,
+        }
+    }
+}