Add edit page and callbacks

redstring/library.py

@@ -1,9 +1,9 @@
 """
-Logic for operations that depend on a whole collection of documents.
+Logic for managing documents.
 """
 import os
 
-from redstring.parser import load, TagOptions, DocumentTag, TabOptions, DocumentTab, Document
+from redstring.parser import load, DocumentTag, DocumentTab, Document, TabOptions, TagOptions
 
 
 def generate_index_document(directory: str) -> Document:
@@ -17,16 +17,18 @@ def generate_index_document(directory: str) -> Document:
             document: Document = load(f)
 
         # Check if this document specifies a tab, and create it if necessary.
-        category = document.get_tag('category')
-        if not category:
+        if category_tag := document.get_tag('category'):
+            category = category_tag.value
+        else:
             category = 'index'
         if category not in categories:
             categories[category] = {}
         category_tab = categories[category]
 
         # Check if this document specifies a topic, and create it if necessary.
-        topic = document.get_tag('topic')
-        if not topic:
+        if topic_tag := document.get_tag('topic'):
+            topic = topic_tag.value
+        else:
             topic = 'uncategorized'
         if '.' in topic:
             topic, subtopic = topic.split('.', maxsplit=1)
@@ -62,8 +64,36 @@ def generate_index_document(directory: str) -> Document:
             docs = sorted(categories[category][topic], key=lambda x: x[0])
             doc_links = map(document_link, docs)
             value = '- ' + '<br>- '.join(doc_links)
-            built_tags.append(DocumentTag(topic, value, TagOptions(), []))
+            built_tags.append(DocumentTag(topic, value))
 
-        built_tabs.append(DocumentTab(category, built_tags, TabOptions()))
+        built_tabs.append(DocumentTab(category, built_tags))
 
     return Document(built_tabs)
+
+
+def generate_default_document(doc_id) -> Document:
+    """
+    Generate a blank document.
+    """
+    return Document(tabs=[
+        DocumentTab(
+            name='tags',
+            tags=[
+                DocumentTag('id', doc_id),
+                DocumentTag('title', ''),
+                DocumentTag('author', ''),
+                DocumentTag('date', ''),
+                DocumentTag('source', ''),
+                DocumentTag('summary', ''),
+                DocumentTag('category', 'index', TagOptions(private=True)),
+                DocumentTag('topic', 'uncategorized', TagOptions(private=True)),
+            ]
+        ),
+        DocumentTab(
+            name='notes',
+            tags=[
+                DocumentTag('notes', ''),
+            ],
+            options=TabOptions(private=True, hide_names=True)
+        )
+    ])

redstring/parser.py

@@ -4,7 +4,7 @@ Logic for reading and writing documents from files.
 import argparse
 from collections import OrderedDict
 import json
-from typing import Any, List, IO
+from typing import Any, List, IO, Optional
 
 
 #
@@ -23,6 +23,9 @@ class TabOptions:
     def __init__(self, **kwargs) -> None:
         self.options: dict = OrderedDict(**kwargs)
 
+    def to_json(self):
+        return self.options
+
     @property
     def priority(self) -> int:
         """Priority determines tab order."""
@@ -60,13 +63,10 @@ class TagOptions:
     _PRIVATE_KEY = 'private'
 
     def __init__(self, **kwargs) -> None:
-        self.options = OrderedDict(**kwargs)
-        # Tag value is a hyperlink
-        self.hyperlink: bool = kwargs.get('hyperlink', False)
-        # Tag value contains redstring interlinks
-        self.interlink: bool = kwargs.get('interlink', False)
-        # Hide the tag from unauthenticated viewers
-        self.private: bool = kwargs.get('private', False)
+        self.options: dict = OrderedDict(**kwargs)
+
+    def to_json(self):
+        return self.options
 
     @property
     def hyperlink(self) -> bool:
@@ -98,10 +98,22 @@ class DocumentSubtag:
     """
     A keyvalue describing a document subject.
     """
-    def __init__(self, name: str, value: str, options: TagOptions) -> None:
+    def __init__(
+        self,
+        name: str,
+        value: str,
+        options: Optional[TagOptions] = None
+    ) -> None:
         self.name: str = name
         self.value: str = value
-        self.options: TagOptions = options
+        self.options: TagOptions = options if options is not None else TagOptions()
+
+    def to_json(self):
+        return OrderedDict(
+            name=self.name,
+            value=self.value,
+            options=self.options.to_json(),
+        )
 
 
 class DocumentTag:
@@ -112,23 +124,43 @@ class DocumentTag:
         self,
         name: str,
         value: str,
-        options: TagOptions,
-        subtags: List[DocumentSubtag]
+        options: Optional[TagOptions] = None,
+        subtags: Optional[List[DocumentSubtag]] = None
     ) -> None:
         self.name: str = name
-        self.value = value
-        self.options = options
-        self.subtags = subtags
+        self.value: str = value
+        self.options: TagOptions = options if options is not None else TagOptions()
+        self.subtags: list = subtags if subtags is not None else []
+
+    def to_json(self):
+        return OrderedDict(
+            name=self.name,
+            value=self.value,
+            options=self.options.to_json(),
+            subtags=[subtag.to_json() for subtag in self.subtags],
+        )
 
 
 class DocumentTab:
     """
     A division of tags within a document.
     """
-    def __init__(self, name: str, tags: List[DocumentTag], options: TabOptions) -> None:
-        self.name = name
+    def __init__(
+        self,
+        name: str,
+        tags: List[DocumentTag],
+        options: Optional[TabOptions] = None
+    ) -> None:
+        self.name: str = name
         self.tags: List[DocumentTag] = tags
-        self.options: TabOptions = options
+        self.options: TabOptions = options if options is not None else TabOptions()
+
+    def to_json(self):
+        return OrderedDict(
+            name=self.name,
+            tags=[tag.to_json() for tag in self.tags],
+            options=self.options.to_json(),
+        )
 
     def get_tag(self, name: str):
         for tag in self.tags:
@@ -136,6 +168,11 @@ class DocumentTab:
                 return tag
         return None
 
+    def get_tag_value(self, name: str, default: str):
+        if tag := self.get_tag(name):
+            return tag.value
+        return default
+
 
 class Document:
     """
@@ -144,6 +181,9 @@ class Document:
     def __init__(self, tabs: List[DocumentTab]) -> None:
         self.tabs: List[DocumentTab] = tabs
 
+    def to_json(self):
+        return [tab.to_json() for tab in self.tabs]
+
     def __iter__(self):
         return self.tabs.__iter__()
 
@@ -160,6 +200,11 @@ class Document:
                     return tag
         return None
 
+    def get_tag_value(self, name: str, default: str):
+        if tag := self.get_tag(name):
+            return tag.value
+        return default
+
 
 #
 # Parsing functions
@@ -176,16 +221,6 @@ def load(fd: IO) -> Document:
     return parse_document_from_json(parsed_json)
 
 
-def loads(string: str) -> Document:
-    """
-    Load a document from a string.
-    """
-    parsed_json = json.loads(string, object_pairs_hook=OrderedDict)
-    if not isinstance(parsed_json, list):
-        raise ValueError('Parsing as document, expected list')
-    return parse_document_from_json(parsed_json)
-
-
 def parse_document_from_json(parsed_json: list) -> Document:
     """
     Parses JSON into a Document object.
@@ -282,6 +317,14 @@ def parse_subtag_from_json(subtag_json: dict) -> DocumentSubtag:
     return DocumentSubtag(name, value, options)
 
 
+def dump(doc: Document, fd: IO):
+    """
+    Write a document to a file descriptor.
+    """
+    dumped_json = doc.to_json()
+    json.dump(dumped_json, fd, indent=2)
+
+
 #
 # CLI functions
 #

redstring/server.py

@@ -10,12 +10,13 @@ from flask import (
     Flask,
     redirect,
     render_template,
+    request,
     safe_join,
     url_for,
 )
 
-from redstring.library import generate_index_document
-from redstring.parser import load
+from redstring.library import generate_index_document, generate_default_document
+from redstring.parser import load, dump, DocumentTab, DocumentTag, TagOptions, DocumentSubtag
 
 
 CONFIG_ENVVAR = 'REDSTRING_CONFIG'
@@ -23,18 +24,18 @@ CONFIG_ENVVAR = 'REDSTRING_CONFIG'
 app = Flask(__name__)
 
 
-@app.route('/')
+@app.route('/', methods=['GET'])
 def root():
     return redirect(url_for('index'))
 
 
-@app.route('/index/')
+@app.route('/index/', methods=['GET'])
 def index():
     document = generate_index_document(current_app.config['root'])
     return render_template('doc.jinja', document=document, index=True)
 
 
-@app.route('/doc/<document_id>')
+@app.route('/doc/<document_id>', methods=['GET'])
 def document(document_id):
     doc_path = safe_join(current_app.config['root'], f'{document_id}.json')
     if not os.path.isfile(doc_path):
@@ -44,6 +45,57 @@ def document(document_id):
     return render_template('doc.jinja', document=doc, index=False)
 
 
+@app.route('/new/', methods=['GET'])
+def new():
+    document_id = 'new'
+    new_doc = generate_default_document(document_id)
+    doc_path = safe_join(current_app.config['root'], f'{document_id}.json')
+    with open(doc_path, 'w') as f:
+        dump(new_doc, f)
+    return redirect(url_for('document', document_id=document_id))
+
+
+@app.route('/edit/<document_id>', methods=['GET', 'POST'])
+def edit(document_id):
+    # Load the document to edit
+    doc_path = safe_join(current_app.config['root'], f'{document_id}.json')
+    if not os.path.isfile(doc_path):
+        return abort(404)
+    with open(doc_path) as f:
+        doc = load(f)
+
+    # Check for structural change requests
+    if add := request.args.get('add'):
+        if add == 'tab':
+            new_tab = DocumentTab('newtab', [])
+            doc.tabs.append(new_tab)
+            with open(doc_path, 'w') as f:
+                dump(doc, f)
+            return redirect(url_for('edit', document_id=document_id))
+        elif add == 'tag':
+            if tab_name := request.args.get('tab'):
+                tab = doc.get_tab(tab_name)
+                new_tag = DocumentTag('tag', '', TagOptions(private=True))
+                tab.tags.append(new_tag)
+                with open(doc_path, 'w') as f:
+                    dump(doc, f)
+                return redirect(url_for('edit', document_id=document_id))
+            return abort(400)
+        elif add == 'subtag':
+            if tag_name := request.args.get('tag'):
+                tag = doc.get_tag(tag_name)
+                new_subtag = DocumentSubtag('subtag', '', TagOptions(private=True))
+                tag.subtags.append(new_subtag)
+                with open(doc_path, 'w') as f:
+                    dump(doc, f)
+                return redirect(url_for('edit', document_id=document_id))
+            return abort(400)
+
+    # Otherwise, return the editor page
+    else:
+        return render_template('edit.jinja', document=doc, index=False)
+
+
 def main():
     parser = argparse.ArgumentParser(description="Run the redstring server.")
     parser.add_argument("--config", help="Config file path.")

redstring/templates/base.jinja

@@ -101,12 +101,20 @@
 	table.page-table td:nth-child(2) {
 		white-space: pre-wrap;
 	}
-	table.page-table td:nth-child(2) a {
+	table.page-table a {
 		color: #8af;
 	}
-	table.page-table td:nth-child(2) a:visited {
+	table.page-table a:visited {
 		color: #88f;
 	}
+
+	/* Edit page styling */
+	input.tag-name {
+	}
+	textarea.tag-value {
+		resize: none;
+		width: 100%;
+	}
 </style>
 {% block page_scripts %}{% endblock %}
 </head>

redstring/templates/doc.jinja

@@ -1,7 +1,7 @@
 {% extends 'base.jinja' %}
 
-{% set page_title = 'tmp' -%}
-{% set page_summary = 'tmpp' %}
+{% set page_title = document.get_tag_value('title', document.get_tag('id').value)  -%}
+{% set page_summary = document.get_tag_value('summary', '') %}
 
 {% block page_scripts %}
 <script>
@@ -38,22 +38,26 @@ window.onload = function () {
 <div id="{{ tab.name }}-page" class="tab-page{% if selected %} tab-page-selected{% endif %}">
 <table id="{{ tab.name }}-page-table" class="page-table">
 {% for tag in tab.tags %}
+{%- if not tag.options.private -%}
 <tr {% if tab.options.hide_names %}class="hide-tag-name"{% endif %}>
 <td>{{ tag.name }}</td>
 <td>{{ make_tag_value(tag) }}</td>
 </tr>
+{%- endif -%}
 {% for subtag in tag.subtags %}
+{%- if not tag.options.private and not subtag.options.private -%}
 <tr {% if tab.options.hide_names %}class="hide-tag-name"{% endif %}>
 <td>{% if loop.last %}&#9492;{% else %}&#9500;{% endif %} {{ subtag.name }}</td>
 <td>{{ make_tag_value(subtag) }}</td>
 </tr>
+{%- endif -%}
 {% endfor %}
 {% endfor %}
 </table>
 </div>
 {% endmacro %}
 
-{# TODO: tag.interlink and tag.private support #}
+{# TODO: tag.interlink #}
 {% macro make_tag_value(tag) -%}
 {%- if tag.options.hyperlink -%}
 <a href="{{ tag.value }}">{{ tag.value }}</a>
@@ -62,8 +66,19 @@ window.onload = function () {
 {%- endif -%}
 {%- endmacro %}
 
-{# TODO: tab.priority and tab.private support #}
+{# TODO: tab.priority support #}
 {% block page_content %}
-<div id="tabs">{% for tab in document %}{{ make_content_tab(tab, loop.first) }}{% endfor %}{% if not index %}<div id="index" class="tab tab-right"><a href="/index/">index</a></div>{% endif %}</div>
-{% for tab in document %}{{ make_tab_page(tab, loop.first) }}{% endfor %}
+<div id="tabs">
+{%- for tab in document -%}
+{%- if not tab.options.private -%}
+{{ make_content_tab(tab, loop.first) }}
+{%- endif -%}
+{%- endfor -%}
+{%- if not index -%}
+<div id="index" class="tab tab-right"><a href="/index/">index</a></div>
+{%- endif -%}
+</div>
+{% for tab in document -%}
+{{ make_tab_page(tab, loop.first) }}
+{%- endfor -%}
 {% endblock page_content %}

redstring/templates/edit.jinja

@@ -0,0 +1,135 @@
+{% extends 'base.jinja' %}
+
+{% set page_title = document.get_tag_value('title', document.get_tag('id').value)  -%}
+{% set page_summary = document.get_tag_value('summary', '') %}
+
+{% block page_scripts %}
+<script>
+var newTabCounter = 0;
+
+function selectTab(name) {
+
+	let tab = document.getElementById("tab-" + name);
+	if (tab)
+	{
+		// Unselect all tabs and content
+		Array.from(document.getElementsByClassName("tab-content"))
+			.forEach(e => e.classList.remove("tab-down"));
+		Array.from(document.getElementsByClassName("tab-page"))
+			.forEach(e => e.classList.remove("tab-page-selected"));
+		// Select the new tab and content
+		tab.classList.add("tab-down");
+		let content = document.getElementById(name + "-page");
+		content.classList.add("tab-page-selected");
+	}
+}
+
+function addTab() {
+	let newTabName = "newtab" + ++newTabCounter;
+	let tabsDiv = document.querySelector("#tabs");
+	let wrapper = document.querySelector("#wrapper");
+	let newTabTab = document.querySelector("#newtab");
+
+	// Add tab div
+	let newTab = document.createElement("div");
+	newTab.id = "tab-" + newTabName;
+	newTab.classList = "tab tab-content";
+	newTab.contenteditable = true;
+	newTab.innerText = newTabName;
+	newTab.onclick = function() { selectTab(newTabName); };
+	tabsDiv.insertBefore(newTab, newTabTab);
+
+	// Add page div
+	let newPage = document.createElement("div");
+	newPage.id = newTabName + "-page";
+	newPage.classList = "tag-page";
+	let newPageTable = document.createElement("table");
+	newPageTable.id = newTabName + "-page-table";
+	newPageTable.classList = "page-table";
+	wrapper.appendChild(newPage);
+}
+
+window.onload = function () {
+	// Respect fragment as a tab selector shortcut
+	if (window.location.hash) {
+		selectTab(window.location.hash.substring(1));
+	}
+}
+</script>
+{% endblock page_scripts %}
+
+{% macro make_content_tab(tab, selected) -%}
+<div id="tab-{{ tab.name }}" class="tab tab-content{% if selected %} tab-down{% endif %}{% if index %} tab-right{% endif %}" onclick="javascript:selectTab('{{ tab.name }}')">{{ tab.name }}</div>
+{%- endmacro %}
+
+{% macro make_tab_page(tab, selected) %}
+<div id="{{ tab.name }}-page" class="tab-page{% if selected %} tab-page-selected{% endif %}">
+<table id="{{ tab.name }}-page-table" class="page-table">
+
+<tr>
+<td><i>tab name</i></td>
+<td><div contenteditable>{{ tab.name }}</div></td>
+</tr>
+
+{% for tag in tab.tags %}
+<tr>
+{%- if tag.name == 'id' -%}
+<td>{{ tag.name }}</td>
+{%- else -%}
+<td><div contenteditable>{{ tag.name }}</div></td>
+{% endif %}
+<td><div contenteditable>{{ tag.value }}</div></td>
+</tr>
+
+<tr>
+<td>
+{%- if tag.subtags -%}
+&#9474;
+{%- else -%}
+<a href="/edit/{{ document.get_tag('id').value }}?add=subtag&tag={{ tag.name }}">&#9492; +</a>
+{%- endif -%}</td>
+<td></td>
+</tr>
+
+{% for subtag in tag.subtags %}
+<tr>
+<td><div contenteditable>{{ subtag.name }}</div></td>
+<td><div contenteditable>{{ subtag.value }}</div></td>
+</tr>
+
+<tr>
+<td>
+{%- if not loop.last -%}
+&#9474;
+{%- else -%}
+<a href="/edit/{{ document.get_tag('id').value }}?add=subtag&tag={{ tag.name }}">&#9492; +</a>
+{%- endif -%}
+</td>
+<td></td>
+</tr>
+{% endfor %}
+
+{% endfor %}
+
+<tr>
+<td><a href="/edit/{{ document.get_tag('id').value }}?add=tag&tab={{ tab.name }}">Add tag</td>
+<td></td>
+</tr>
+
+</table>
+</div>
+{% endmacro %}
+
+{# TODO: tab.priority support #}
+{% block page_content %}
+<div id="tabs">
+{%- for tab in document -%}
+{{ make_content_tab(tab, loop.first) }}
+{%- endfor -%}
+<div id="newtab" class="tab"><a href="/edit/{{ document.get_tag('id').value }}?add=tab">+</div>
+<div id="index" class="tab tab-right"><a href="/index/">index</a></div>
+</div>
+{% for tab in document -%}
+{{ make_tab_page(tab, loop.first) }}
+{%- endfor -%}
+{% endblock page_content %}