feat: Simulated multireddits

lib/bdfr_browser/http/plug.ex

@@ -8,11 +8,18 @@ defmodule BdfrBrowser.HTTP.Plug do
 
   get "/" do
     config_file = Application.fetch_env!(:bdfr_browser, :config_file)
-    archived_subreddits = Enum.sort(config_file["archived_subreddits"])
+    archived_subreddits = Enum.sort_by(config_file["archived_subreddits"], &String.downcase/1)
-    archived_users = Enum.sort(config_file["archived_users"])
+    archived_users = Enum.sort_by(config_file["archived_users"], &String.downcase/1)
-    saved_searches = Enum.sort(config_file["saved_searches"])
+    simulated_multireddits = Enum.sort_by(config_file["simulated_multireddits"], fn {t, _} -> String.downcase(t) end)
+    saved_searches = Enum.sort_by(config_file["saved_searches"], &String.downcase/1)
+
+    tpl_args = [
+      subreddits: archived_subreddits,
+      users: archived_users,
+      multireddits: simulated_multireddits,
+      searches: saved_searches
+    ]
 
-    tpl_args = [subreddits: archived_subreddits, users: archived_users, searches: saved_searches]
     content = render_template("index", tpl_args)
 
     conn
@@ -21,7 +28,10 @@ defmodule BdfrBrowser.HTTP.Plug do
   end
 
   get "/all/subreddits" do
-    tpl_args = [subreddits: Subreddit.names() |> Repo.all()]
+    config_file = Application.fetch_env!(:bdfr_browser, :config_file)
+    archived_subreddits = MapSet.new(config_file["archived_subreddits"])
+
+    tpl_args = [subreddits: Subreddit.names() |> Repo.all(), archived_subreddits: archived_subreddits]
     content = render_template("all_subreddits", tpl_args)
 
     conn
@@ -78,6 +88,39 @@ defmodule BdfrBrowser.HTTP.Plug do
     |> send_resp(200, content)
   end
 
+  get "/m/:subreddits" do
+    subreddit_names = String.split(subreddits, "+")
+    subreddit_records = Subreddit.multiple_names(subreddit_names) |> Repo.all()
+
+    tpl_args = [
+      subreddit: subreddit_names,
+      dates: subreddit_records |> Post.date_listing() |> Repo.all()
+    ]
+
+    content = render_template("subreddit", tpl_args)
+
+    conn
+    |> put_resp_header("content-type", "text/html; charset=utf-8")
+    |> send_resp(200, content)
+  end
+
+  get "/m/:subreddits/:date" do
+    subreddit_names = String.split(subreddits, "+")
+    subreddit_records = Subreddit.multiple_names(subreddit_names) |> Repo.all()
+
+    tpl_args = [
+      subreddit: subreddit_names,
+      date: date,
+      posts: subreddit_records |> Post.during_month(date) |> Repo.all()
+    ]
+
+    content = render_template("subreddit_posts", tpl_args)
+
+    conn
+    |> put_resp_header("content-type", "text/html; charset=utf-8")
+    |> send_resp(200, content)
+  end
+
   get "/chats" do
     tpl_args = [chats: Chat.listing() |> Repo.all()]
     content = render_template("chats", tpl_args)

lib/bdfr_browser/post.ex

@@ -21,6 +21,17 @@ defmodule BdfrBrowser.Post do
     has_many :comments, Comment
   end
 
+  def date_listing(subreddits) when is_list(subreddits) do
+    subreddit_ids = for s <- subreddits, do: s.id
+
+    from(p in __MODULE__,
+      select: fragment("to_char(?, 'YYYY-MM')", p.posted_at),
+      where: p.subreddit_id in ^subreddit_ids,
+      distinct: true,
+      order_by: [desc: fragment("to_char(?, 'YYYY-MM')", p.posted_at)]
+    )
+  end
+
   def date_listing(subreddit) do
     from(p in __MODULE__,
       select: fragment("to_char(?, 'YYYY-MM')", p.posted_at),
@@ -35,15 +46,45 @@ defmodule BdfrBrowser.Post do
     during_range(subreddit, Date.beginning_of_month(d), Date.end_of_month(d))
   end
 
+  def during_range(subreddits, start_date, end_date) when is_list(subreddits) do
+    subreddit_ids = for s <- subreddits, do: s.id
+
+    from(p in __MODULE__,
+      left_join: c in assoc(p, :comments),
+      join: s in assoc(p, :subreddit),
+      select: %{
+        id: p.id,
+        title: p.title,
+        author: p.author,
+        posted_at: p.posted_at,
+        num_comments: count(c.id),
+        subreddit: s.name
+      },
+      where:
+        p.subreddit_id in ^subreddit_ids and type(p.posted_at, :date) >= ^start_date and
+          type(p.posted_at, :date) <= ^end_date,
+      order_by: [desc: p.posted_at],
+      group_by: [p.id, s.name]
+    )
+  end
+
   def during_range(subreddit, start_date, end_date) do
     from(p in __MODULE__,
       left_join: c in assoc(p, :comments),
-      select: %{id: p.id, title: p.title, author: p.author, posted_at: p.posted_at, num_comments: count(c.id)},
+      join: s in assoc(p, :subreddit),
+      select: %{
+        id: p.id,
+        title: p.title,
+        author: p.author,
+        posted_at: p.posted_at,
+        num_comments: count(c.id),
+        subreddit: s.name
+      },
       where:
         p.subreddit_id == ^subreddit.id and type(p.posted_at, :date) >= ^start_date and
           type(p.posted_at, :date) <= ^end_date,
       order_by: [desc: p.posted_at],
-      group_by: p.id
+      group_by: [p.id, s.name]
     )
   end
 

lib/bdfr_browser/subreddit.ex

@@ -6,9 +6,13 @@ defmodule BdfrBrowser.Subreddit do
   alias BdfrBrowser.Post
 
   schema "subreddits" do
-    field(:name, :string)
+    field :name, :string
 
-    has_many(:posts, Post)
+    has_many :posts, Post
+  end
+
+  def multiple_names(names) do
+    from(s in __MODULE__, where: s.name in ^names)
   end
 
   def names do

priv/templates/http/all_subreddits.eex

@@ -10,7 +10,10 @@
 <div class="row text-center">
   <div class="d-grid gap-2 col-12 mx-auto">
     <%= for subreddit <- subreddits do %>
-      <a class="btn btn-outline-secondary btn-lg" href="/r/<%= subreddit %>" role="button"><%= subreddit %></a>
+      <a class="btn btn-outline-<%= if MapSet.member?(archived_subreddits, subreddit), do: "info", else: "secondary" %> btn-lg" 
+       href="/r/<%= subreddit %>" role="button">
+        <%= subreddit %>
+      </a>
     <% end %>
   </div>
 </div>

priv/templates/http/index.eex

@@ -45,6 +45,18 @@
 
 <br>
 
+<h2>Simulated Multireddits</h2>
+
+<div class="row text-center">
+  <div class="d-grid gap-2 col-12 mx-auto">
+    <%= for {title, subreddits} <- multireddits do %>
+      <a class="btn btn-outline-secondary btn-lg" href="/m/<%= Enum.join(subreddits, "+") %>" role="button"><%= title %></a>
+    <% end %>
+  </div>
+</div>
+
+<br>
+
 <h2>Saved Searches</h2>
 
 <div class="row text-center">

priv/templates/http/subreddit.eex

@@ -1,16 +1,32 @@
 <nav style="--bs-breadcrumb-divider: '>';" aria-label="breadcrumb">
   <ol class="breadcrumb">
     <li class="breadcrumb-item"><a href="/">Overview</a></li>
-    <li class="breadcrumb-item active" aria-current="page"><%= subreddit %></li>
+    <li class="breadcrumb-item active" aria-current="page">
+      <%= if is_list(subreddit) do %>
+        <%= Enum.join(subreddit, ", ") %>
+      <% else %>
+        <%= subreddit %>
+      <% end %>
+    </li>
   </ol>
 </nav>
 
-<h2><%= subreddit %></h2>
+<h2>
+  <%= if is_list(subreddit) do %>
+    <%= Enum.join(subreddit, ", ") %>
+  <% else %>
+    <%= subreddit %>
+  <% end %>
+</h2>
 
 <div class="row text-center">
   <div class="d-grid gap-2 col-12 mx-auto">
     <%= for date <- dates do %>
+      <%= if is_list(subreddit) do %>
+        <a class="btn btn-outline-secondary btn-lg" href="/m/<%= Enum.join(subreddit, "+") %>/<%= date %>" role="button"><%= date %></a>
+      <% else %>
         <a class="btn btn-outline-secondary btn-lg" href="/r/<%= subreddit %>/<%= date %>" role="button"><%= date %></a>
       <% end %>
+    <% end %>
   </div>
 </div>

priv/templates/http/subreddit_posts.eex

@@ -1,19 +1,31 @@
 <nav style="--bs-breadcrumb-divider: '>';" aria-label="breadcrumb">
   <ol class="breadcrumb">
     <li class="breadcrumb-item"><a href="/">Overview</a></li>
-    <li class="breadcrumb-item"><a href="/r/<%= subreddit %>"><%= subreddit %></a></li>
+    <li class="breadcrumb-item">
+      <%= if is_list(subreddit) do %>
+        <a href="/m/<%= Enum.join(subreddit, "+") %>"><%= Enum.join(subreddit, ", ") %></a>
+      <% else %>
+        <a href="/r/<%= subreddit %>"><%= subreddit %></a>
+      <% end %>
+    </li>
     <li class="breadcrumb-item active" aria-current="page"><%= date %></li>
   </ol>
 </nav>
 
-<h2><%= subreddit %></h2>
+<h2>
+  <%= if is_list(subreddit) do %>
+    <%= Enum.join(subreddit, ", ") %>
+  <% else %>
+    <%= subreddit %>
+  <% end %>
+</h2>
 
 <div class="row text-center">
   <div class="d-grid gap-2 col-12 mx-auto">
     <%= for post <- posts do %>
       <div class="card">
         <div class="card-body">
-          <h5 class="card-title"><a href="/r/<%= subreddit %>/<%= date %>/<%= post.id %>"><%= post.title %></a></h5>
+          <h5 class="card-title"><a href="/r/<%= post.subreddit %>/<%= date %>/<%= post.id %>"><%= post.title %></a></h5>
           <h6 class="card-subtitle mb-2 text-body-secondary">
             <small><%= post.num_comments %> comment(s) - <%= DateTime.to_iso8601(post.posted_at) %></small>
           </h6>

priv/templates/http/user.eex

@@ -1,3 +1,10 @@
+<nav style="--bs-breadcrumb-divider: '>';" aria-label="breadcrumb">
+  <ol class="breadcrumb">
+    <li class="breadcrumb-item"><a href="/">Overview</a></li>
+    <li class="breadcrumb-item active" aria-current="page">User</li>
+  </ol>
+</nav>
+
 <h2><%= name %></h2>
 
 <ul class="nav nav-pills" id="userTab" role="tablist">