Switch to time crate, add file sizes (#329)

* Switch to time crate, add file sizes

* Update deps, adjust pack format

* Run formatter, fix clippy

src/validate/fabric.rs

@@ -1,8 +1,8 @@
 use crate::validate::{
     SupportedGameVersions, ValidationError, ValidationResult,
 };
-use chrono::{DateTime, NaiveDateTime, Utc};
 use std::io::Cursor;
+use time::OffsetDateTime;
 use zip::ZipArchive;
 
 pub struct FabricValidator;
@@ -22,9 +22,8 @@ impl super::Validator for FabricValidator {
 
     fn get_supported_game_versions(&self) -> SupportedGameVersions {
         // Time since release of 18w49a, the first fabric version
-        SupportedGameVersions::PastDate(DateTime::from_utc(
-            NaiveDateTime::from_timestamp(1543969469, 0),
-            Utc,
+        SupportedGameVersions::PastDate(OffsetDateTime::from_unix_timestamp(
+            1543969469,
         ))
     }
 

src/validate/forge.rs

@@ -1,8 +1,8 @@
 use crate::validate::{
     SupportedGameVersions, ValidationError, ValidationResult,
 };
-use chrono::{DateTime, NaiveDateTime, Utc};
 use std::io::Cursor;
+use time::OffsetDateTime;
 use zip::ZipArchive;
 
 pub struct ForgeValidator;
@@ -22,9 +22,8 @@ impl super::Validator for ForgeValidator {
 
     fn get_supported_game_versions(&self) -> SupportedGameVersions {
         // Time since release of 1.13, the first forge version which uses the new TOML system
-        SupportedGameVersions::PastDate(DateTime::<Utc>::from_utc(
-            NaiveDateTime::from_timestamp(1540122067, 0),
-            Utc,
+        SupportedGameVersions::PastDate(OffsetDateTime::from_unix_timestamp(
+            1540122067,
         ))
     }
 
@@ -68,14 +67,8 @@ impl super::Validator for LegacyForgeValidator {
     fn get_supported_game_versions(&self) -> SupportedGameVersions {
         // Times between versions 1.5.2 to 1.12.2, which all use the legacy way of defining mods
         SupportedGameVersions::Range(
-            DateTime::from_utc(
-                NaiveDateTime::from_timestamp(1366818300, 0),
-                Utc,
-            ),
-            DateTime::from_utc(
-                NaiveDateTime::from_timestamp(1505810340, 0),
-                Utc,
-            ),
+            OffsetDateTime::from_unix_timestamp(1366818300),
+            OffsetDateTime::from_unix_timestamp(1505810340),
         )
     }
 

src/validate/mod.rs

@@ -2,9 +2,9 @@ use crate::models::projects::{GameVersion, Loader};
 use crate::validate::fabric::FabricValidator;
 use crate::validate::forge::{ForgeValidator, LegacyForgeValidator};
 use crate::validate::pack::PackValidator;
-use chrono::{DateTime, Utc};
 use std::io::Cursor;
 use thiserror::Error;
+use time::OffsetDateTime;
 use zip::ZipArchive;
 
 mod fabric;
@@ -35,8 +35,8 @@ pub enum ValidationResult {
 
 pub enum SupportedGameVersions {
     All,
-    PastDate(DateTime<Utc>),
-    Range(DateTime<Utc>, DateTime<Utc>),
+    PastDate(OffsetDateTime),
+    Range(OffsetDateTime, OffsetDateTime),
     #[allow(dead_code)]
     Custom(Vec<GameVersion>),
 }

src/validate/pack.rs

@@ -33,6 +33,7 @@ pub struct PackFile<'a> {
     pub env: Option<std::collections::HashMap<EnvType, SideType>>,
     #[validate(custom(function = "validate_download_url"))]
     pub downloads: Vec<&'a str>,
+    pub file_size: u32,
 }
 
 fn validate_download_url(
@@ -167,6 +168,12 @@ impl super::Validator for PackValidator {
                 ));
             }
 
+            if file.hashes.get(&FileHash::Sha512).is_none() {
+                return Err(ValidationError::InvalidInput(
+                    "All pack files must provide a SHA512 hash!".into(),
+                ));
+            }
+
             let path = std::path::Path::new(file.path)
                 .components()
                 .next()