Add even more validators (#385)

* Add even more validators

I was gonna add shaderpacks too, but those have no standard metadata file at all.

* Make it compile

* Fix logic

* Update validators

* fix mistake

Co-authored-by: Geometrically <18202329+Geometrically@users.noreply.github.com>

src/validate/resourcepack.rs

@@ -2,11 +2,48 @@ use crate::validate::{
     SupportedGameVersions, ValidationError, ValidationResult,
 };
 use std::io::Cursor;
+use time::OffsetDateTime;
 use zip::ZipArchive;
 
-pub struct ResourcePackValidator;
+pub struct PackValidator;
 
-impl super::Validator for ResourcePackValidator {
+impl super::Validator for PackValidator {
+    fn get_file_extensions(&self) -> &[&str] {
+        &["zip"]
+    }
+
+    fn get_project_types(&self) -> &[&str] {
+        &["resourcepack", "datapack"]
+    }
+
+    fn get_supported_loaders(&self) -> &[&str] {
+        &["minecraft"]
+    }
+
+    fn get_supported_game_versions(&self) -> SupportedGameVersions {
+        // Time since release of 13w24a which replaced texture packs with resource packs
+        SupportedGameVersions::PastDate(OffsetDateTime::from_unix_timestamp(
+            1371137542,
+        ))
+    }
+
+    fn validate(
+        &self,
+        archive: &mut ZipArchive<Cursor<bytes::Bytes>>,
+    ) -> Result<ValidationResult, ValidationError> {
+        archive.by_name("pack.mcmeta").map_err(|_| {
+            ValidationError::InvalidInput(
+                "No pack.mcmeta present for pack file.".into(),
+            )
+        })?;
+
+        Ok(ValidationResult::Pass)
+    }
+}
+
+pub struct TexturePackValidator;
+
+impl super::Validator for TexturePackValidator {
     fn get_file_extensions(&self) -> &[&str] {
         &["zip"]
     }
@@ -20,16 +57,20 @@ impl super::Validator for ResourcePackValidator {
     }
 
     fn get_supported_game_versions(&self) -> SupportedGameVersions {
-        SupportedGameVersions::All
+        // a1.2.2a to 13w23b
+        SupportedGameVersions::Range(
+            OffsetDateTime::from_unix_timestamp(1289339999),
+            OffsetDateTime::from_unix_timestamp(1370651522),
+        )
     }
 
     fn validate(
         &self,
         archive: &mut ZipArchive<Cursor<bytes::Bytes>>,
     ) -> Result<ValidationResult, ValidationError> {
-        archive.by_name("pack.mcmeta").map_err(|_| {
+        archive.by_name("pack.txt").map_err(|_| {
             ValidationError::InvalidInput(
-                "No pack.mcmeta present for resourcepack file.".into(),
+                "No pack.txt present for pack file.".into(),
             )
         })?;