From 52b52c7b09a51af60a847d8956824f0dcae8c99b Mon Sep 17 00:00:00 2001
From: Guillermo Ramos
Date: Tue, 4 Feb 2020 18:11:46 +0100
Subject: And closer

---
 assets/css/app.css                           | 13 +++++++
 lib/waev/export.ex                           | 53 +++++++++++++++++++++++-----
 lib/waev_web/templates/exports/show.html.eex | 25 +++++++++----
 lib/waev_web/templates/layout/app.html.eex   |  9 +----
 4 files changed, 77 insertions(+), 23 deletions(-)

diff --git a/assets/css/app.css b/assets/css/app.css
index fec0b3f..72ef09d 100644
--- a/assets/css/app.css
+++ b/assets/css/app.css
@@ -1,3 +1,16 @@
 /* This file is for your main application css. */
 
 @import "./phoenix.css";
+
+.wa-back {
+  background-color: #dddddd;
+}
+
+.wa-message {
+  margin: 15px 0 15px 0;
+  background-color: white;
+}
+
+.wa-message-date {
+  text-align: right;
+}
diff --git a/lib/waev/export.ex b/lib/waev/export.ex
index 5140a89..a69fa33 100644
--- a/lib/waev/export.ex
+++ b/lib/waev/export.ex
@@ -1,6 +1,12 @@
 defmodule Waev.Export do
+  require Logger
+
   defmodule Party do
     defstruct name: nil, photo: nil
+
+    def lookup(name) do
+      %Party{name: name, photo: nil}
+    end
   end
 
   defmodule Message do
@@ -12,7 +18,20 @@ defmodule Waev.Export do
       defstruct filename: nil
     end
 
-    defstruct party: nil, date: nil, text: nil, attachment: nil
+    defstruct side: nil, date: nil, text: nil, attachment: nil
+
+    def parse(side, datetime, text) do
+      {text, attachment} =
+        case Regex.run(~r/^([^ ]+) \(archivo adjunto\)$/u, text) do
+          [^text, filename] ->
+            {nil, %File{filename: filename}}
+
+          nil ->
+            {text, nil}
+        end
+
+      %Message{side: side, date: datetime, text: text, attachment: attachment}
+    end
   end
 
   defstruct left: nil, right: nil, messages: []
@@ -36,23 +55,39 @@ defmodule Waev.Export do
       true ->
         export =
           File.stream!("#{path()}/#{e}/chat.txt")
+          |> Enum.take(200)
           |> Enum.reduce(%Waev.Export{}, fn line, export ->
             line = String.trim(line)
 
             case Regex.run(~r/^(\d+\/\d+\/\d+ \d+:\d+) - ([^:]+): (.*)$/u, line) do
               # Match: new message
               [^line, datetime, name, text] ->
-                party = nil
+                {export, side} =
+                  case {export.left, export.right, name} do
+                    {nil, _, _} ->
+                      {%{export | left: Party.lookup(name)}, :left}
+
+                    {%{name: left}, _, left} ->
+                      {export, :left}
+
+                    {_, nil, _} ->
+                      {%{export | right: Party.lookup(name)}, :right}
 
-                message =
-                  case Regex.run(~r/^([^ ]+) \(archivo adjunto\)$/u, text) do
-                    [^text, filename] ->
-                      %Message{party: party, date: datetime, text: nil, attachment: filename}
+                    {_, %{name: right}, right} ->
+                      {export, :right}
 
-                    nil ->
-                      %Message{party: party, date: datetime, text: text, attachment: nil}
+                    {left, right, name} ->
+                      Logger.error(
+                        "Found a third party!? (left, right, name) = #{
+                          inspect({left.name, right.name, name})
+                        }"
+                      )
+
+                      {export, nil}
                   end
 
+                message = Message.parse(side, datetime, text)
+
                 %{export | messages: [message | export.messages]}
 
               # Otherwise: text continuing from the previous one. We need to
@@ -74,7 +109,7 @@ defmodule Waev.Export do
                     export
                 end
             end
-        end)
+          end)
 
         {:ok, export}
 
diff --git a/lib/waev_web/templates/exports/show.html.eex b/lib/waev_web/templates/exports/show.html.eex
index b8cb69c..2d72e2e 100644
--- a/lib/waev_web/templates/exports/show.html.eex
+++ b/lib/waev_web/templates/exports/show.html.eex
@@ -1,20 +1,33 @@
 ID: <%= @id %>
 
-<div class="container">
+<div class="container wa-back">
   <div class="row">
     <div class="column column-50">
-      <%= @export.left %>
+      <%= @export.left.name %>
     </div>
     <div class="column column-50">
-      <%= @export.right %>
+      <%= @export.right.name %>
     </div>
   </div>
   <%= for message <- @export.messages do %>
     <div class="row">
-      <div class="column column-75">
+      <%= case message.side do %>
+        <% :left -> %>
+          <div class="column wa-message column-75 ">
+        <% :right -> %>
+          <div class="column wa-message column-75 column-offset-25">
+        <% nil -> %>
+          <div class="column wa-message column-50 column-offset-25">
+      <% end %>
+        <%= case message.attachment do %>
+          <% %Waev.Export.Message.File{filename: filename} -> %>
+            <a href="#"><%= filename %></a>
+          <% nil -> %>
+        <% end %>
         <%= message.text %>
-        <br />
-        <%= message.date %>
+        <div class="wa-message-date">
+          <%= message.date %>
+        </div>
       </div>
     </div>
   <% end %>
diff --git a/lib/waev_web/templates/layout/app.html.eex b/lib/waev_web/templates/layout/app.html.eex
index 3eb7e3a..d83e5bc 100644
--- a/lib/waev_web/templates/layout/app.html.eex
+++ b/lib/waev_web/templates/layout/app.html.eex
@@ -11,14 +11,7 @@
   <body>
     <header>
       <section class="container">
-        <nav role="navigation">
-          <ul>
-            <li><a href="https://hexdocs.pm/phoenix/overview.html">Get Started</a></li>
-          </ul>
-        </nav>
-        <a href="https://phoenixframework.org/" class="phx-logo">
-          <img src="<%= Routes.static_path(@conn, "/images/phoenix.png") %>" alt="Phoenix Framework Logo"/>
-        </a>
+        <h1>WhatsApp Exports Viewer</h1>
       </section>
     </header>
     <main role="main" class="container">
-- 
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