From 598c806799f47b2b1ef261dfc0c8c2b23572096e Mon Sep 17 00:00:00 2001
From: Anna Clemens <git@annaclemens.io>
Date: Thu, 17 Nov 2022 19:48:04 -0500
Subject: [PATCH] feat: add ability to deserialise from json value

---
 src/lib.rs | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index 2a0a31b..ea5b88f 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -2,8 +2,8 @@ use std::io::{Read, Seek};
 
 use serde::de::Error as _;
 use serde::Deserialize;
+use serde_json::{Deserializer, StreamDeserializer};
 use serde_json::de::IoRead;
-use serde_json::StreamDeserializer;
 pub use zip::{read::ZipFile, ZipArchive};
 
 use crate::error::{Error, Result};
@@ -15,6 +15,16 @@ pub mod error;
 pub(crate) mod tracking_reader;
 pub mod ttmp_extractor;
 
+pub fn from_value(value: serde_json::Value) -> Result<ManifestKind> {
+    let manifest = if value.is_array() {
+        ManifestKind::V1(serde_json::from_value(value).map_err(Error::InvalidManifest)?)
+    } else {
+        ManifestKind::V2(serde_json::from_value(value).map_err(Error::InvalidManifest)?)
+    };
+
+    Ok(manifest)
+}
+
 pub fn from_reader<R: Read + Seek>(reader: R) -> Result<(ManifestKind, ZipArchive<R>)> {
     let mut zip = ZipArchive::new(reader).map_err(Error::Zip)?;
     let manifest = zip.by_name("TTMPL.mpl").map_err(Error::Zip)?;