From 9f2d01a2bff4472e5c6c67c20494864b6513e3dc Mon Sep 17 00:00:00 2001
From: roker <roker@pep-project.org>
Date: Mon, 21 Jun 2021 13:35:44 +0200
Subject: [PATCH] add identity & identity_list.

---
 src/identity.cc | 64 +++++++++++++++++++++++++++++++++++++++----------
 src/types.hh    |  2 ++
 2 files changed, 54 insertions(+), 12 deletions(-)

diff --git a/src/identity.cc b/src/identity.cc
index 782e349..b9b6637 100644
--- a/src/identity.cc
+++ b/src/identity.cc
@@ -1,28 +1,68 @@
 #include "types.hh"
 
+#include <pEp/identity_list.h>
+
+#include <string>
+
 namespace pEp
 {
-
     template<>
+    void Wrapper<::identity_list*>::_free(::identity_list* sl)
+    {
+        ::free_identity_list(sl);
+    }
+    
+    template<>
+    pEp_identity* identity_list::* const ListWrapper<identity_list*, const char*>::Value = &identity_list::ident;
+
     template<>
-    pEp_identity* Wrapper<::pEp_identity*>::_new<const char*, const char*, const char*, const char*>
-        (const char* address, const char* fpr, const char* user_id, const char* username)
+    int identity_list::size() const
     {
-        pEp_identity* id = new_identity(address, fpr, user_id, username);
-        if(!id)
-        {
-            throw EngineError(PEP_OUT_OF_MEMORY, "new_identity()");
-        }
-        return id;
+        return identity_list_length(value);
     }
 
+    // faster than .size()==0 because it's not necessary to iterate throgh the whole list
+    template<>
+    bool identity_list::empty() const
+    {
+        return !(value && value->ident);
+    }
+    
+    template<>
+    void identity_list::clear()
+    {
+        free_identity_list(value);
+        value = nullptr;
+    }
+    
     template<>
-    void Wrapper<::pEp_identity*>::_free(::pEp_identity* id)
+    void identity_list::push_back(pEp_identity*&& id)
     {
-        free_identity(id);
+        auto last = identity_list_add(value, id);
+        if(value==nullptr)
+            value = last;
+    }
+    
+    
+    template<>
+    ListWrapper<::identity_list*, pEp_identity*>::ListWrapper(const std::initializer_list<Wrapper<pEp_identity*>>& il)
+    : identity_list{}
+    {
+        ::identity_list* last  = nullptr;
+        for(const Wrapper<pEp_identity*>& id : il)
+        {
+            last = identity_list_add(last, identity_dup(id.get()));
+            if(last==nullptr)
+            {
+                throw std::runtime_error("Cannot create StringPairList from {}: Out Of Memory.");
+            }
+            if(value==nullptr)
+                value = last; // save the head of linked list.
+        }
     }
 
+////////////////
 
-    template class Wrapper<::pEp_identity*>;
+    template class ListWrapper<::identity_list*, ::pEp_identity*>;
 
 } // end of namespace pEp
diff --git a/src/types.hh b/src/types.hh
index 5239615..181064c 100644
--- a/src/types.hh
+++ b/src/types.hh
@@ -21,6 +21,8 @@ namespace pEp
     };
 
     using Identity = Wrapper<::pEp_identity*>;
+    using IdentityList = ListWrapper<::pEp_identity_list*, ::pEp_identity*>;
+    
     using StringPair = Wrapper<::stringpair_t*>;
     using StringPairList = ListWrapper<::stringpair_list_t*, ::stringpair_t*>;