From f94443c63dfd63300e5bd29889935fd1f451175e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Roman=20Smr=C5=BE?= <roman.smrz@seznam.cz>
Date: Sat, 21 Dec 2019 21:42:20 +0100
Subject: Identity storage and modification

---
 include/erebos/identity.h | 19 +++++++++++++++++++
 include/erebos/storage.h  | 39 +++++++++++++++++++++++++++++++++++++--
 2 files changed, 56 insertions(+), 2 deletions(-)

(limited to 'include/erebos')

diff --git a/include/erebos/identity.h b/include/erebos/identity.h
index 7b66d82..f57a12e 100644
--- a/include/erebos/identity.h
+++ b/include/erebos/identity.h
@@ -12,6 +12,25 @@ public:
 
 	std::optional<std::string> name() const;
 	std::optional<Identity> owner() const;
+	std::optional<Ref> ref() const;
+
+	class Builder
+	{
+	public:
+		Identity commit() const;
+
+		void name(const std::string &);
+		void owner(const Identity &);
+
+	private:
+		friend class Identity;
+		struct Priv;
+		const std::shared_ptr<Priv> p;
+		Builder(Priv * p): p(p) {}
+	};
+
+	static Builder create(const Storage &);
+	Builder modify() const;
 
 private:
 	struct Priv;
diff --git a/include/erebos/storage.h b/include/erebos/storage.h
index ea0e894..3777572 100644
--- a/include/erebos/storage.h
+++ b/include/erebos/storage.h
@@ -23,9 +23,21 @@ public:
 	Storage & operator=(const Storage &) = delete;
 
 	static std::optional<Storage> open(std::filesystem::path path);
+
+	bool operator==(const Storage &) const;
+	bool operator!=(const Storage &) const;
+
 	std::optional<Ref> ref(const Digest &) const;
-	std::optional<Object> load(const Digest &) const;
-	Ref store(const Object &) const;
+
+	std::optional<Object> loadObject(const Digest &) const;
+	Ref storeObject(const Object &) const;
+	Ref storeObject(const class Record &) const;
+	Ref storeObject(const class Blob &) const;
+
+	template<typename T> Stored<T> store(const T &) const;
+
+	void storeKey(Ref pubref, const std::vector<uint8_t> &) const;
+	std::optional<std::vector<uint8_t>> loadKey(Ref pubref) const;
 
 private:
 	friend class Ref;
@@ -71,6 +83,8 @@ public:
 	const Object & operator*() const;
 	const Object * operator->() const;
 
+	const Storage & storage() const;
+
 private:
 	friend class Storage;
 	struct Priv;
@@ -94,6 +108,10 @@ public:
 			Item(name, std::monostate()) {}
 		Item(const std::string & name, Variant value):
 			name(name), value(value) {}
+		template<typename T>
+		Item(const std::string & name, const Stored<T> & value):
+			Item(name, value.ref) {}
+
 		Item(const Item &) = default;
 		Item & operator=(const Item &) = delete;
 
@@ -118,6 +136,7 @@ private:
 
 public:
 	Record(const std::vector<Item> &);
+	Record(std::vector<Item> &&);
 	std::vector<uint8_t> encode() const;
 
 	const std::vector<Item> & items() const;
@@ -192,8 +211,10 @@ template<typename T>
 class Stored
 {
 	Stored(Ref ref, std::shared_ptr<T> val): ref(ref), val(val) {}
+	friend class Storage;
 public:
 	static std::optional<Stored<T>> load(const Ref &);
+	Ref store(const Storage &) const;
 
 	bool operator==(const Stored<T> & other) const
 	{ return ref.digest() == other.ref.digest(); }
@@ -218,6 +239,12 @@ public:
 	const std::shared_ptr<T> val;
 };
 
+template<typename T>
+Stored<T> Storage::store(const T & val) const
+{
+	return Stored(val.store(*this), std::make_shared<T>(val));
+}
+
 template<typename T>
 std::optional<Stored<T>> Stored<T>::load(const Ref & ref)
 {
@@ -226,6 +253,14 @@ std::optional<Stored<T>> Stored<T>::load(const Ref & ref)
 	return std::nullopt;
 }
 
+template<typename T>
+Ref Stored<T>::store(const Storage & st) const
+{
+	if (st == ref.storage())
+		return ref;
+	return st.storeObject(*ref);
+}
+
 template<typename T>
 std::vector<Stored<T>> Stored<T>::previous() const
 {
-- 
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