From 721d438b620d1ded126e0386003f6aeb0c80d091 Mon Sep 17 00:00:00 2001
From: martinfrances107 <martinfrances107@hotmail.com>
Date: Fri, 15 Mar 2024 09:11:46 +0000
Subject: [PATCH 1/3] enum Values now derives PartialEq.

---
 src/value.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/value.rs b/src/value.rs
index e05743c..d36e35c 100644
--- a/src/value.rs
+++ b/src/value.rs
@@ -31,7 +31,7 @@ use crate::endian::Endian;
 use crate::error::Error;
 
 /// A type and values of a TIFF/Exif field.
-#[derive(Clone)]
+#[derive(Clone, PartialEq)]
 pub enum Value {
     /// Vector of 8-bit unsigned integers.
     Byte(Vec<u8>),
@@ -346,7 +346,7 @@ impl From<&DefaultValue> for Option<Value> {
 }
 
 /// An unsigned rational number, which is a pair of 32-bit unsigned integers.
-#[derive(Copy, Clone)]
+#[derive(Copy, Clone, PartialEq)]
 pub struct Rational { pub num: u32, pub denom: u32 }
 
 impl Rational {
@@ -384,7 +384,7 @@ impl fmt::Display for Rational {
 }
 
 /// A signed rational number, which is a pair of 32-bit signed integers.
-#[derive(Copy, Clone)]
+#[derive(Copy, Clone, PartialEq)]
 pub struct SRational { pub num: i32, pub denom: i32 }
 
 impl SRational {

From 4db2310aa90a63bc346f756b71f4dbee891e9f59 Mon Sep 17 00:00:00 2001
From: martinfrances107 <martinfrances107@hotmail.com>
Date: Fri, 15 Mar 2024 10:10:57 +0000
Subject: [PATCH 2/3] Field now derrived PartialEq.

---
 src/tiff.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/tiff.rs b/src/tiff.rs
index 26af106..d3baa28 100644
--- a/src/tiff.rs
+++ b/src/tiff.rs
@@ -99,7 +99,7 @@ impl IfdEntry {
 }
 
 /// A TIFF/Exif field.
-#[derive(Debug, Clone)]
+#[derive(Debug, Clone, PartialEq)]
 pub struct Field {
     /// The tag of this field.
     pub tag: Tag,

From e7cc7bcdb13fb8c80bbe983e61022481edb86531 Mon Sep 17 00:00:00 2001
From: martinfrances107 <martinfrances107@hotmail.com>
Date: Mon, 29 Apr 2024 17:50:28 +0100
Subject: [PATCH 3/3] Field and its dependant structs now support
 Deserialize/Serialize. photo_indexer needed to pass Field from server to
 client.

---
 Cargo.toml   | 1 +
 src/tag.rs   | 7 +++++--
 src/tiff.rs  | 6 ++++--
 src/value.rs | 9 ++++++---
 4 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 04e338a..3ad9b64 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,3 +16,4 @@ license = "BSD-2-Clause"
 
 [dependencies]
 mutate_once = "0.1.1"
+serde = { version = "~1", features = ["derive"] }
diff --git a/src/tag.rs b/src/tag.rs
index d0dd479..3ac4e5a 100644
--- a/src/tag.rs
+++ b/src/tag.rs
@@ -26,6 +26,9 @@
 
 use std::fmt;
 
+use serde::Deserialize;
+use serde::Serialize;
+
 use crate::error::Error;
 use crate::value;
 use crate::value::Value;
@@ -55,7 +58,7 @@ use crate::util::atou16;
 // PartialEq and Eq need to be _automatically derived_ for Tag to
 // emulate structural equivalency.
 // <https://github.com/rust-lang/rfcs/pull/1445>
-#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
+#[derive(Debug, Copy, Clone, Deserialize, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize)]
 pub struct Tag(pub Context, pub u16);
 
 impl Tag {
@@ -113,7 +116,7 @@ impl fmt::Display for Tag {
 }
 
 /// An enum that indicates how a tag number is interpreted.
-#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
+#[derive(Debug, Copy, Clone, Deserialize,  PartialEq, Eq, PartialOrd, Ord, Hash, Serialize)]
 #[non_exhaustive]
 pub enum Context {
     /// TIFF attributes defined in the TIFF Rev. 6.0 specification.
diff --git a/src/tiff.rs b/src/tiff.rs
index d3baa28..79887aa 100644
--- a/src/tiff.rs
+++ b/src/tiff.rs
@@ -26,6 +26,8 @@
 
 use std::fmt;
 use mutate_once::MutOnce;
+use serde::Deserialize;
+use serde::Serialize;
 
 use crate::endian::{Endian, BigEndian, LittleEndian};
 use crate::error::Error;
@@ -99,7 +101,7 @@ impl IfdEntry {
 }
 
 /// A TIFF/Exif field.
-#[derive(Debug, Clone, PartialEq)]
+#[derive(Debug, Clone, Deserialize, PartialEq, Serialize)]
 pub struct Field {
     /// The tag of this field.
     pub tag: Tag,
@@ -121,7 +123,7 @@ pub struct Field {
 /// assert_eq!(In::PRIMARY.index(), 0);
 /// assert_eq!(In::THUMBNAIL.index(), 1);
 /// ```
-#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
+#[derive(Debug, Copy, Clone, Deserialize, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize)]
 pub struct In(pub u16);
 
 impl In {
diff --git a/src/value.rs b/src/value.rs
index d36e35c..e8a2acf 100644
--- a/src/value.rs
+++ b/src/value.rs
@@ -27,11 +27,14 @@
 use std::fmt;
 use std::fmt::Write as _;
 
+use serde::Deserialize;
+use serde::Serialize;
+
 use crate::endian::Endian;
 use crate::error::Error;
 
 /// A type and values of a TIFF/Exif field.
-#[derive(Clone, PartialEq)]
+#[derive(Clone, Deserialize, PartialEq, Serialize)]
 pub enum Value {
     /// Vector of 8-bit unsigned integers.
     Byte(Vec<u8>),
@@ -346,7 +349,7 @@ impl From<&DefaultValue> for Option<Value> {
 }
 
 /// An unsigned rational number, which is a pair of 32-bit unsigned integers.
-#[derive(Copy, Clone, PartialEq)]
+#[derive(Copy, Clone, Deserialize, PartialEq, Serialize)]
 pub struct Rational { pub num: u32, pub denom: u32 }
 
 impl Rational {
@@ -384,7 +387,7 @@ impl fmt::Display for Rational {
 }
 
 /// A signed rational number, which is a pair of 32-bit signed integers.
-#[derive(Copy, Clone, PartialEq)]
+#[derive(Copy, Clone, Deserialize, PartialEq, Serialize)]
 pub struct SRational { pub num: i32, pub denom: i32 }
 
 impl SRational {