Implemement Actor information tab

This class still has improvements to be made, but it works and I am
satisfied with it!

13 files changed, 362 insertions, 7 deletions

diff --git a/src/activitypub/apactor.cpp b/src/activitypub/apactor.cpp
index 6731dd3..78ed9a3 100644
--- a/src/activitypub/apactor.cpp
+++ b/src/activitypub/apactor.cpp
@@ -1,11 +1,34 @@
 #include "apactor.h"
+#include <QDebug>
 
 APActor::APActor() {}
 
-APActor::APActor(const QString url) {
+APActor::APActor(const QString& url) {
     object_url = url;
 }
 
+APActor::APActor(APActorFields& fields) {
+    object_url = fields.url;
+    username = fields.username;
+    name = fields.display_name;
+    summary = fields.summary;
+    manuallyApprovesFollowers = fields.manuallyApprovesFollowers;
+    discoverable = fields.discoverable;
+    joined = QDateTime::fromString(fields.joined_date, Qt::ISODate);
+    avatar = fields.avatar;
+    header = fields.header;
+
+    if (fields.keys.length() == fields.values.length())
+        for (int i = 0; i < fields.keys.length(); ++i)
+            table.push_back({fields.keys[i], fields.values[i]});
+    else qDebug() << "key and value vectors don't have the same lenght!";
+}
+
+APActor::~APActor() {
+    if (avatar) delete avatar;
+    if (header) delete header;
+}
+
 const QString APActor::get_url() {
     return object_url;
 }
diff --git a/src/activitypub/apactor.h b/src/activitypub/apactor.h
index 60ef0bf..ad8d689 100644
--- a/src/activitypub/apactor.h
+++ b/src/activitypub/apactor.h
@@ -1,22 +1,60 @@
 #pragma once
 
 #include "apbase.h"
+#include "apattachment.h"
+#include <QDateTime>
 #include <vector>
 
+struct APPropertyValue {
+    QString key;
+    QString value;
+};
+
+struct APActorFields {
+    QString url;
+    QString username; // without the leading '@'
+    QString display_name;
+    QString summary; // Profile biography/description (bio)
+    QStringList keys;
+    QStringList values;
+    APAttachment* avatar = nullptr;
+    APAttachment* header = nullptr;
+    bool manuallyApprovesFollowers = false;
+    bool discoverable = true; // is discoverable or indexable
+    QString joined_date;
+    QStringList also_known_as; // other Actors representing the same user
+};
+
 // APActors will have an avatar, display name, username and more that will be fetched using the remote instance
+// Currently missing: featured tags and featured posts
 class APActor : APBase {
 public:
     // Empty actor
     APActor();
-    APActor(const QString url);
-    ~APActor() {};
+    APActor(const QString& url);
+    APActor(APActorFields& fields);
+    ~APActor();
 
     const QString get_url();
 
     QString get_html_render(HtmlRenderDetails render_info);
     const QString get_plain_render();
 private:
+    friend class TabActorInfo;
+
     QString object_url;
+    QString username;
+    QString name; // Display name
+    QString summary; // Profile biography/description (bio)
+    typedef std::vector<APPropertyValue> APPropertyValueList; // Key/value table in profile (example: "web site | http://example.com/")
+    APPropertyValueList table;
+    APAttachment* avatar = nullptr;
+    APAttachment* header = nullptr;
+    bool manuallyApprovesFollowers = false;
+    bool discoverable = true; // is discoverable or indexable
+    QDateTime joined;
+    // TODO: parse the also_known_as field
+    // APActorList known_as;
 };
 
 class APActorList : public std::vector<APActor>, APBase {
diff --git a/src/activitypub/apattachment.cpp b/src/activitypub/apattachment.cpp
index 0589291..342ea21 100644
--- a/src/activitypub/apattachment.cpp
+++ b/src/activitypub/apattachment.cpp
@@ -1,5 +1,6 @@
 #include "apattachment.h"
 #include <QFileInfo>
+#include <QDebug>
 
 APAttachment::APAttachment() {}
 
@@ -28,6 +29,31 @@ QString APAttachment::get_html_render(HtmlRenderDetails info) {
     return html;
 }
 
+const QPixmap& APAttachment::get_pixmap(int width, int height) {
+    if (pixmap) return *pixmap;
+
+    if (width > 0 or height > 0) {
+        QPixmap image(path_url);
+
+        /* proportionality rule:
+         * width     image width
+         * -----  =  -----------
+         * height    image height
+         */
+        if (height == 0)
+            height = (width * image.height()) / image.width();
+        else if (width == 0)
+            width = (height * image.width()) / image.height();
+
+        pixmap = new QPixmap(image.scaled(QSize(width, height)));
+    } else {
+        pixmap = new QPixmap;
+        if (not pixmap->load(path_url))
+            qDebug() << "failed to load" << path_url;
+    }
+    return *pixmap;
+}
+
 QString APAttachmentList::get_html_render(HtmlRenderDetails render_info) {
     QString html;
 
diff --git a/src/activitypub/apattachment.h b/src/activitypub/apattachment.h
index ff40dc3..f4e620b 100644
--- a/src/activitypub/apattachment.h
+++ b/src/activitypub/apattachment.h
@@ -2,6 +2,7 @@
 
 #include "apbase.h"
 #include "fields.h"
+#include <QPixmap>
 #include <array>
 #include <vector>
 
@@ -11,6 +12,7 @@ public:
     APAttachment(APAttachmentFields fields);
     ~APAttachment() {};
     QString get_html_render(HtmlRenderDetails render_info);
+    const QPixmap& get_pixmap(int width = 0, int height = 0);
 
 private:
     QString blurhash;
@@ -19,6 +21,8 @@ private:
     QString description; // alt text, maps to "name"
     QString path_url; // attachment URL, might be file on filesystem (make sure that the attachment dir has been found and that the path is correct)
     QString filename; // nicer descriptor of the attachment's path
+
+    QPixmap* pixmap = nullptr;
 };
 
 class APAttachmentList : public std::vector<APAttachment>, APBase {
diff --git a/src/archive/base_archive.cpp b/src/archive/base_archive.cpp
index 47cadf2..472abb1 100644
--- a/src/archive/base_archive.cpp
+++ b/src/archive/base_archive.cpp
@@ -15,3 +15,7 @@ Archive::Archive(const QString& filename) : main_filename(filename) {}
 const QString Archive::get_instance_address() {
     return "";
 }
+
+APActor* Archive::get_main_actor() {
+    return nullptr;
+}
diff --git a/src/archive/base_archive.h b/src/archive/base_archive.h
index bf43306..27259b3 100644
--- a/src/archive/base_archive.h
+++ b/src/archive/base_archive.h
@@ -1,10 +1,10 @@
 #pragma once
-
+#include "src/activitypub/apactivity.h"
+#include "src/activitypub/apactor.h"
+#include "src/types.h"
 #include <QString>
 #include <QListWidget>
 #include <variant>
-#include "src/activitypub/apactivity.h"
-#include "src/types.h"
 
 enum ArchiveType {
     MASTODON
@@ -35,6 +35,9 @@ public:
 
     virtual void update_status_list(ViewStatusTypes allowed_types, QListWidget *parent) = 0;
     virtual APActivity* get_activity(ArchiveItemRef index, Hinting_t hinting) = 0;
+    // Get the Actor that represents the data export, the user who's account data has been exported.
+    // Return nullptr if the Actor cannot be retrieved
+    virtual APActor* get_main_actor();
     virtual const QString get_html_status_text(ArchiveItemRef status_index) = 0;
     virtual const QString get_instance_address();
 
diff --git a/src/archive/mastodon.cpp b/src/archive/mastodon.cpp
index 781f928..121c366 100644
--- a/src/archive/mastodon.cpp
+++ b/src/archive/mastodon.cpp
@@ -355,6 +355,96 @@ const QString MastodonArchive::get_html_status_text(ArchiveItemRef index) {
     return text;
 }
 
+APActor* MastodonArchive::get_main_actor() {
+    // Avoid recreating the Actor each time by caching it
+    if (actor) return actor;
+
+    // First, get the file
+    QString actor_filepath = archive_root_dir.filePath("actor.json");
+    if (not QFile::exists(actor_filepath)) return nullptr;
+    QFile actor_file(actor_filepath);
+
+    if (!actor_file.open(QIODevice::ReadOnly | QIODevice::Text))
+        return nullptr;
+
+    QJsonParseError json_error;
+    QJsonDocument actor_json_document = QJsonDocument::fromJson(actor_file.readAll(), &json_error);
+    actor_file.close();
+
+    if (json_error.error != QJsonParseError::NoError or actor_json_document.isNull() or actor_json_document.isEmpty() or not actor_json_document.isObject())
+        return nullptr;
+
+    // Second, now check the JSON
+    QJsonObject actor_json(actor_json_document.object());
+
+    // Do some more throughful checks to make sure that the JSON is actually valid
+    // Please tell me if actor is not "actor.json" (also, i should instead first read actor.json to know the outbox file location, not the other way around as i've been doing since the beginning). Indeed, the checks are also quite random
+    if (not json_check_item(actor_json.value("@context"), "https://www.w3.org/ns/activitystreams") or actor_json.value("outbox").toString() != "outbox.json")
+        return nullptr;
+
+    // Third, now parse the JSON :-D
+    {
+        APActorFields obj_fields;
+        // If the key doesn't exist then toString() will return a null QString
+        obj_fields.url = actor_json.value("id").toString();
+        obj_fields.username = actor_json.value("preferredUsername").toString();
+        obj_fields.display_name = actor_json.value("name").toString();
+        obj_fields.summary = actor_json.value("summary").toString();
+        obj_fields.manuallyApprovesFollowers = actor_json.value("manuallyApprovesFollowers").toBool();
+        obj_fields.discoverable = actor_json.value("discoverable").toBool();
+        obj_fields.joined_date = actor_json.value("published").toString();
+
+        if (actor_json.value("attachment").isArray()) {
+            QJsonArray table = actor_json.value("attachment").toArray();
+            for (auto pair_obj : table) {
+                QJsonObject pair = pair_obj.toObject();
+
+                // Not a PropertyValue, so better not continue with this pair (just in case it represents something else)
+                if (pair.value("type").toString() != "PropertyValue") {
+                    qDebug() << "not a PropertyValue!";
+                    continue;
+                }
+
+                if (pair.contains("name") && pair.contains("value")) {
+                    obj_fields.keys.append(pair.value("name").toString());
+                    obj_fields.values.append(pair.value("value").toString());
+                }
+            }
+        }
+
+        if (actor_json.value("alsoKnownAs").isArray()) {
+            QJsonArray list = actor_json.value("alsoKnownAs").toArray();
+            for (auto id_obj : list)
+                obj_fields.also_known_as.append(id_obj.toString());
+        }
+
+        if (actor_json.value("icon").isObject()) {
+            APAttachmentFields att_fields;
+            QJsonObject attachment = actor_json.value("icon").toObject();
+
+            att_fields.media_type = attachment["mediaType"].toString();
+            att_fields.path = archive_root_dir.absoluteFilePath(attachment["url"].toString());
+
+            obj_fields.avatar = new APAttachment(att_fields);
+        }
+
+        if (actor_json.value("image").isObject()) {
+            APAttachmentFields att_fields;
+            QJsonObject attachment = actor_json.value("image").toObject();
+            att_fields.media_type = attachment["mediaType"].toString();
+            att_fields.path = archive_root_dir.absoluteFilePath(attachment["url"].toString());
+            obj_fields.header = new APAttachment(att_fields);
+        }
+
+        actor = new APActor(obj_fields);
+
+        // TODO: query type. it seems to be always "Person", but maybe if the account is a bot, it changes?
+        // The code also currently ignores possible featured tags and users
+    }
+
+    return actor;
+}
+
 void MastodonArchive::find_attachment_dir(QString example_attachment) {
     // Find the root directory name of the attachment
     QString root_name = example_attachment.split('/', Qt::SkipEmptyParts)[0];
diff --git a/src/archive/mastodon.h b/src/archive/mastodon.h
index 75bc7ec..f148047 100644
--- a/src/archive/mastodon.h
+++ b/src/archive/mastodon.h
@@ -3,6 +3,7 @@
 #include "src/archive/base_archive.h"
 #include "src/activitypub/fields.h"
 #include "src/activitypub/apactivity.h"
+#include "src/activitypub/apactor.h"
 #include "src/types.h"
 
 #include <QJsonDocument>
@@ -19,6 +20,7 @@ public:
 
     void update_status_list(ViewStatusTypes allowed_types, QListWidget *parent);
     APActivity* get_activity(ArchiveItemRef index, Hinting_t hinting = {});
+    APActor* get_main_actor();
     const QString get_html_status_text(ArchiveItemRef status_index);
     const QString get_instance_address();
 private:
@@ -28,6 +30,7 @@ private:
 
     QJsonObject *outbox_json = nullptr;
     QJsonArray *outbox_items = nullptr;
+    APActor* actor = nullptr;
 
     bool is_status_type_allowed(StatusType status_type, ViewStatusTypes allowed_types);
     StatusType get_status_type(QJsonObject obj);
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index c2a9820..1432116 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -5,6 +5,7 @@
 #include "src/settingsdialog.h"
 #include "src/aboutdialog.h"
 #include "src/widgets/tab_activity_list.h"
+#include "src/widgets/tab_actor_info.h"
 
 #include <QFileDialog>
 #include <QInputDialog>
@@ -53,6 +54,10 @@ void MainWindow::create_initial_tabs() {
         activity_list_tab->relist_statuses(true);
     });
 
+    // TODO: maybe have one Actor info tab that is constantly updated with the new opened archive?
+    // actor_info_tab = new TabActorInfo(data_archive);
+    // ui->tabWidget->addTab(actor_info_tab, tr("Actor Info"));
+
     // TODO: Add the "+" tab for opening new tabs
 }
 
@@ -151,6 +156,9 @@ void MainWindow::finish_open_file(const Archive::InitError& parse_error) {
     if (parse_error == Archive::NoError) {
         emit new_archive_opened();
     }
+    actor_info_tab = new TabActorInfo(data_archive);
+    ui->tabWidget->addTab(actor_info_tab, tr("Actor Info"));
+    connect(this, &MainWindow::new_archive_opened, actor_info_tab, &TabActorInfo::deleteLater);
     // The cursor is restored in TabActivityList::relist_statuses()
 }
 
diff --git a/src/mainwindow.h b/src/mainwindow.h
index e77e2a9..aadd439 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -4,12 +4,12 @@
 #include <QListWidgetItem>
 #include <QLocale>
 #include <QFutureWatcher>
-#include <vector>
 
 #include "archive/base_archive.h"
 #include "src/list_item.h"
 #include "src/settingsdialog.h"
 #include "src/widgets/tab_activity_list.h"
+#include "src/widgets/tab_actor_info.h"
 #include "command_line.h"
 
 QT_BEGIN_NAMESPACE
@@ -53,6 +53,7 @@ private:
 
     SettingsDialog* settings_dialog = nullptr;
     TabActivityList* activity_list_tab = nullptr;
+    TabActorInfo* actor_info_tab = nullptr;
 
     QString open_file_filename;
 
diff --git a/src/widgets/tab_actor_info.cpp b/src/widgets/tab_actor_info.cpp
new file mode 100644
index 0000000..79630df
--- /dev/null
+++ b/src/widgets/tab_actor_info.cpp
@@ -0,0 +1,49 @@
+#include "tab_actor_info.h"
+#include "ui_tab_actor_info.h"
+#include "src/activitypub/apactor.h"
+#include "src/archive/base_archive.h"
+#include <QTableWidgetItem>
+#include <QDebug>
+
+TabActorInfo::TabActorInfo(APActor* actor, QWidget* parent)
+    : QWidget(parent), ui(new Ui::TabActorInfo), actor(actor)
+{
+    ui->setupUi(this);
+    ui->gridLayout->setContentsMargins(0, 0, 0, 0);
+
+    update_ui();
+}
+
+TabActorInfo::TabActorInfo(Archive* archive, QWidget* parent)
+    : QWidget(parent), ui(new Ui::TabActorInfo)
+{
+    ui->setupUi(this);
+    ui->gridLayout->setContentsMargins(0, 0, 0, 0);
+
+    actor = archive->get_main_actor();
+    qDebug() << actor;
+    update_ui();
+}
+
+TabActorInfo::~TabActorInfo() {
+    if (actor) delete actor;
+    delete ui;
+}
+
+// TODO: do this in another thread, like for status_info
+void TabActorInfo::update_ui() {
+    if (not actor) return;
+
+    ui->displayNameText->setText(ui->displayNameText->text().arg(actor->name).arg(actor->username));
+    ui->summaryText->setHtml(actor->summary);
+    ui->avatarImage->setPixmap(actor->avatar->get_pixmap(ui->avatarImage->size().width()));
+    // TODO: set header as top of background of widget
+    // Affiche le nom et la description fonctionne sans problèmes
+
+    int row = 0;
+    for (APPropertyValue prop : actor->table) {
+        ui->attachments->insertRow(row);
+        ui->attachments->setItem(row, 0, new QTableWidgetItem(prop.key));
+        ui->attachments->setItem(row++, 1, new QTableWidgetItem(prop.value));
+    }
+}
diff --git a/src/widgets/tab_actor_info.h b/src/widgets/tab_actor_info.h
new file mode 100644
index 0000000..a1dd84f
--- /dev/null
+++ b/src/widgets/tab_actor_info.h
@@ -0,0 +1,27 @@
+#pragma once
+#include <QWidget>
+#include "src/activitypub/apactor.h"
+#include "src/archive/base_archive.h"
+
+QT_BEGIN_NAMESPACE
+namespace Ui { class TabActorInfo; }
+QT_END_NAMESPACE
+
+class TabActorInfo : public QWidget {
+    Q_OBJECT
+
+public:
+    TabActorInfo(APActor* actor, QWidget *parent = nullptr);
+    TabActorInfo(Archive* archive, QWidget *parent = nullptr);
+    ~TabActorInfo();
+    // TODO: when clicking/activating avatar image, open it with the user's default image viewer
+
+public slots:
+    // Update displayed information to match Actor
+    void update_ui();
+
+private:
+    Ui::TabActorInfo* ui;
+
+    APActor* actor = nullptr;
+};
diff --git a/src/widgets/tab_actor_info.ui b/src/widgets/tab_actor_info.ui
new file mode 100644
index 0000000..8fb7e21
--- /dev/null
+++ b/src/widgets/tab_actor_info.ui
@@ -0,0 +1,79 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>TabActorInfo</class>
+ <widget class="QWidget" name="TabActorInfo">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout" columnminimumwidth="50,0">
+   <item row="0" column="1">
+    <widget class="QLabel" name="displayNameText">
+     <property name="text">
+      <string notr="true">&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;&lt;span style=&quot; font-size:12pt; font-weight:600;&quot;&gt;%1&lt;/span&gt; &lt;span style=&quot; font-size:10pt;&quot;&gt;(@%2)&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="1">
+    <layout class="QVBoxLayout" name="verticalLayout">
+     <item>
+      <widget class="QTextBrowser" name="summaryText">
+       <property name="openExternalLinks">
+        <bool>true</bool>
+       </property>
+       <property name="openLinks">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QTableWidget" name="attachments">
+       <property name="verticalScrollMode">
+        <enum>QAbstractItemView::ScrollPerPixel</enum>
+       </property>
+       <property name="cornerButtonEnabled">
+        <bool>false</bool>
+       </property>
+       <property name="columnCount">
+        <number>2</number>
+       </property>
+       <attribute name="horizontalHeaderVisible">
+        <bool>false</bool>
+       </attribute>
+       <attribute name="horizontalHeaderStretchLastSection">
+        <bool>true</bool>
+       </attribute>
+       <attribute name="verticalHeaderVisible">
+        <bool>false</bool>
+       </attribute>
+       <column/>
+       <column/>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item row="0" column="0">
+    <widget class="QLabel" name="avatarImage">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="text">
+      <string notr="true">aaaaa</string>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>