From 2e164316dde35bdff472c84a0c8e8c66344ac2bb Mon Sep 17 00:00:00 2001
From: tastytea <tastytea@tastytea.de>
Date: Sun, 5 Jul 2020 08:01:30 +0200
Subject: [PATCH] Add date & time to entries.

---
 src/cgi.cpp   |  4 ++++
 src/json.cpp  | 17 ++++++++++++++++-
 src/time.cpp  | 43 +++++++++++++++++++++++++++++++++++++++++++
 src/time.hpp  | 44 ++++++++++++++++++++++++++++++++++++++++++++
 src/types.hpp |  1 +
 5 files changed, 108 insertions(+), 1 deletion(-)
 create mode 100644 src/time.cpp
 create mode 100644 src/time.hpp

diff --git a/src/cgi.cpp b/src/cgi.cpp
index a31c86a..9c94e59 100644
--- a/src/cgi.cpp
+++ b/src/cgi.cpp
@@ -17,9 +17,11 @@
 #include "cgi.hpp"
 #include "files.hpp"
 #include "fs-compat.hpp"
+#include "time.hpp"
 
 #include <cgicc/Cgicc.h>
 
+#include <chrono>
 #include <fstream>
 #include <ios>
 #include <iostream>
@@ -39,6 +41,7 @@ using std::string;
 using std::string_view;
 using std::stringstream;
 using std::vector;
+using std::chrono::system_clock;
 
 entry_type parse_formdata()
 {
@@ -49,6 +52,7 @@ entry_type parse_formdata()
     entry.tags = string_to_vector(cgi("tags"));
     entry.receipts = string_to_vector(cgi("receipts"));
     entry.description = cgi("description");
+    entry.report_time = time::to_string(system_clock::now());
 
     const auto screenshot = cgi.getFile("screenshot");
     if (screenshot != cgi.getFiles().end())
diff --git a/src/json.cpp b/src/json.cpp
index 2d304ae..bb53b6b 100644
--- a/src/json.cpp
+++ b/src/json.cpp
@@ -30,7 +30,8 @@ string to_json(const entry_type &entry)
                               {"tags", entry.tags},
                               {"receipts", entry.receipts},
                               {"description", entry.description},
-                              {"screenshot", filename}};
+                              {"screenshot", filename},
+                              {"report_time", entry.report_time}};
     return json.dump(4);
 }
 
@@ -61,6 +62,20 @@ entry_type from_json(const string_view json_string)
 #endif
     {}
     entry.tags = json[0].at("tags").get<vector<string>>();
+    try
+    {
+        entry.report_time = json[0].at("report_time").get<string>();
+    }
+    // TODO: this is only necessary for compatibility with old test data. Remove
+    // before going live.
+#if NLOHMANN_JSON_VERSION_MAJOR >= 3
+    catch (const nlohmann::detail::out_of_range &)
+#else
+    catch (const std::out_of_range &)
+#endif
+    {
+        entry.report_time = "1970-01-01T00:00:00";
+    }
 
     return entry;
 }
diff --git a/src/time.cpp b/src/time.cpp
new file mode 100644
index 0000000..472d213
--- /dev/null
+++ b/src/time.cpp
@@ -0,0 +1,43 @@
+/*  This file is part of FediBlock-backend.
+ *  Copyright © 2020 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "time.hpp"
+
+#include <cstdint>
+#include <ctime>
+#include <string_view>
+
+namespace FediBlock::time
+{
+
+using std::string_view;
+using std::time_t;
+using std::uint16_t;
+
+string to_string(const system_clock::time_point &timepoint,
+                 const string_view format)
+{
+    constexpr uint16_t bufsize = 1024;
+    time_t time = system_clock::to_time_t(timepoint);
+    std::tm *tm{nullptr};
+    tm = std::gmtime(&time);
+    char buffer[bufsize];
+    std::strftime(buffer, bufsize, format.data(), tm);
+
+    return buffer;
+}
+
+} // namespace FediBlock::time
diff --git a/src/time.hpp b/src/time.hpp
new file mode 100644
index 0000000..feebede
--- /dev/null
+++ b/src/time.hpp
@@ -0,0 +1,44 @@
+/*  This file is part of FediBlock-backend.
+ *  Copyright © 2020 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef FEDIBLOCK_BACKEND_TIME_HPP
+#define FEDIBLOCK_BACKEND_TIME_HPP
+
+#include <chrono>
+#include <string>
+#include <string_view>
+
+namespace FediBlock::time
+{
+
+using std::string;
+using std::string_view;
+using std::chrono::system_clock;
+
+/*!
+ *  @brief  Return date and time as string.
+
+ *  @param  timepoint The point in time to convert.
+ *  @param  format    Format of the string (optional, defaults to %FT%T).
+ *
+ *  @since  0.2.0
+ */
+[[nodiscard]] string to_string(const system_clock::time_point &timepoint,
+                               string_view format = "%FT%T");
+
+} // namespace FediBlock::time
+
+#endif // FEDIBLOCK_BACKEND_TIME_HPP
diff --git a/src/types.hpp b/src/types.hpp
index 1465893..8e3242a 100644
--- a/src/types.hpp
+++ b/src/types.hpp
@@ -33,6 +33,7 @@ struct entry_type
     vector<string> receipts;
     string description;
     string screenshot_filepath;
+    string report_time;
 };
 
 enum class http_method