From 04d798aaa7c1ba7d34ab6934d41a2606ad3d4ddf Mon Sep 17 00:00:00 2001
From: shibao <shibao@bubbletea.dev>
Date: Sat, 22 Jan 2022 21:40:29 -0500
Subject: [PATCH] fix dialyzer, credo and format

---
 lib/cannery/accounts.ex                       | 87 ++++++++++---------
 lib/cannery/accounts/user.ex                  | 48 +++++-----
 lib/cannery/accounts/user_notifier.ex         |  4 +
 lib/cannery/accounts/user_token.ex            | 48 +++++++---
 lib/cannery/ammo/ammo_group.ex                |  7 ++
 lib/cannery/ammo/ammo_type.ex                 |  6 ++
 lib/cannery/containers.ex                     | 37 ++++----
 lib/cannery/containers/container.ex           | 22 +++--
 lib/cannery/containers/container_tag.ex       | 18 ++--
 lib/cannery/invites.ex                        | 20 ++---
 lib/cannery/invites/invite.ex                 | 24 +++--
 lib/cannery/mailer.ex                         |  4 +
 lib/cannery/release.ex                        |  6 ++
 lib/cannery/repo/migrator.ex                  |  4 +
 lib/cannery/tags/tag.ex                       | 21 +++--
 lib/cannery_web/component/topbar.ex           |  8 +-
 lib/cannery_web/controllers/user_auth.ex      | 11 ++-
 .../live/ammo_group_live/form_component.ex    |  4 +
 lib/cannery_web/live/ammo_group_live/index.ex |  4 +
 lib/cannery_web/live/ammo_group_live/show.ex  |  4 +
 .../live/ammo_type_live/form_component.ex     |  4 +
 lib/cannery_web/live/ammo_type_live/index.ex  |  4 +
 lib/cannery_web/live/ammo_type_live/show.ex   |  4 +
 .../live/container_live/form_component.ex     |  4 +
 lib/cannery_web/live/container_live/index.ex  |  4 +
 lib/cannery_web/live/container_live/show.ex   |  4 +
 lib/cannery_web/live/home_live.ex             |  6 +-
 .../live/invite_live/form_component.ex        |  4 +
 lib/cannery_web/live/invite_live/index.ex     |  8 +-
 lib/cannery_web/live/live_helpers.ex          |  6 +-
 lib/cannery_web/live/modal_component.ex       |  4 +
 .../live/tag_live/form_component.ex           |  6 +-
 lib/cannery_web/live/tag_live/index.ex        |  4 +
 lib/cannery_web/telemetry.ex                  |  4 +
 lib/cannery_web/views/layout_view.ex          |  4 +-
 test/support/channel_case.ex                  |  5 +-
 test/support/conn_case.ex                     |  5 +-
 test/support/data_case.ex                     |  5 +-
 test/support/fixtures/accounts_fixtures.ex    |  2 +-
 39 files changed, 331 insertions(+), 143 deletions(-)

diff --git a/lib/cannery/accounts.ex b/lib/cannery/accounts.ex
index d453473..1a1725e 100644
--- a/lib/cannery/accounts.ex
+++ b/lib/cannery/accounts.ex
@@ -4,8 +4,9 @@ defmodule Cannery.Accounts do
   """
 
   import Ecto.Query, warn: false
-  alias Cannery.{Repo}
-  alias Cannery.Accounts.{User, UserToken, UserNotifier}
+  alias Cannery.Repo
+  alias Cannery.Accounts.{User, UserNotifier, UserToken}
+  alias Ecto.{Changeset, Multi}
 
   ## Database getters
 
@@ -89,10 +90,10 @@ defmodule Cannery.Accounts do
       {:ok, %User{}}
 
       iex> register_user(%{field: bad_value})
-      {:error, %Ecto.Changeset{}}
+      {:error, %Changeset{}}
 
   """
-  @spec register_user(map()) :: {:ok, User.t()} | {:error, Ecto.Changeset.t()}
+  @spec register_user(map()) :: {:ok, User.t()} | {:error, Changeset.t()}
   def register_user(attrs) do
     # if no registered users, make first user an admin
     attrs =
@@ -104,15 +105,16 @@ defmodule Cannery.Accounts do
   end
 
   @doc """
-  Returns an `%Ecto.Changeset{}` for tracking user changes.
+  Returns an `%Changeset{}` for tracking user changes.
 
   ## Examples
 
       iex> change_user_registration(user)
-      %Ecto.Changeset{data: %User{}}
+      %Changeset{data: %User{}}
 
   """
-  @spec change_user_registration(User.t(), map()) :: Ecto.Changeset.t()
+  @spec change_user_registration(User.t() | User.new_user()) :: Changeset.t()
+  @spec change_user_registration(User.t() | User.new_user(), map()) :: Changeset.t()
   def change_user_registration(user, attrs \\ %{}) do
     User.registration_changeset(user, attrs, hash_password: false)
   end
@@ -120,29 +122,29 @@ defmodule Cannery.Accounts do
   ## Settings
 
   @doc """
-  Returns an `%Ecto.Changeset{}` for changing the user email.
+  Returns an `%Changeset{}` for changing the user email.
 
   ## Examples
 
       iex> change_user_email(user)
-      %Ecto.Changeset{data: %User{}}
+      %Changeset{data: %User{}}
 
   """
-  @spec change_user_email(User.t(), map()) :: Ecto.Changeset.t()
+  @spec change_user_email(User.t(), map()) :: Changeset.t()
   def change_user_email(user, attrs \\ %{}) do
     User.email_changeset(user, attrs)
   end
 
   @doc """
-  Returns an `%Ecto.Changeset{}` for changing the user role.
+  Returns an `%Changeset{}` for changing the user role.
 
   ## Examples
 
       iex> change_user_role(user)
-      %Ecto.Changeset{data: %User{}}
+      %Changeset{data: %User{}}
 
   """
-  @spec change_user_role(User.t(), atom()) :: Ecto.Changeset.t()
+  @spec change_user_role(User.t(), atom()) :: Changeset.t()
   def change_user_role(user, role) do
     User.role_changeset(user, role)
   end
@@ -157,16 +159,16 @@ defmodule Cannery.Accounts do
       {:ok, %User{}}
 
       iex> apply_user_email(user, "invalid password", %{email: ...})
-      {:error, %Ecto.Changeset{}}
+      {:error, %Changeset{}}
 
   """
   @spec apply_user_email(User.t(), String.t(), map()) ::
-          {:ok, User.t()} | {:error, Ecto.Changeset.t()}
+          {:ok, User.t()} | {:error, Changeset.t()}
   def apply_user_email(user, password, attrs) do
     user
     |> User.email_changeset(attrs)
     |> User.validate_current_password(password)
-    |> Ecto.Changeset.apply_action(:update)
+    |> Changeset.apply_action(:update)
   end
 
   @doc """
@@ -175,7 +177,7 @@ defmodule Cannery.Accounts do
   If the token matches, the user email is updated and the token is deleted.
   The confirmed_at date is also updated to the current time.
   """
-  @spec update_user_email(User.t(), UserToken.t()) :: {:ok, any()} | :error
+  @spec update_user_email(User.t(), String.t()) :: :ok | :error
   def update_user_email(user, token) do
     context = "change:#{user.email}"
 
@@ -188,12 +190,13 @@ defmodule Cannery.Accounts do
     end
   end
 
+  @spec user_email_multi(User.t(), String.t(), String.t()) :: Multi.t()
   defp user_email_multi(user, email, context) do
     changeset = user |> User.email_changeset(%{email: email}) |> User.confirm_changeset()
 
-    Ecto.Multi.new()
-    |> Ecto.Multi.update(:user, changeset)
-    |> Ecto.Multi.delete_all(:tokens, UserToken.user_and_contexts_query(user, [context]))
+    Multi.new()
+    |> Multi.update(:user, changeset)
+    |> Multi.delete_all(:tokens, UserToken.user_and_contexts_query(user, [context]))
   end
 
   @doc """
@@ -216,15 +219,15 @@ defmodule Cannery.Accounts do
   end
 
   @doc """
-  Returns an `%Ecto.Changeset{}` for changing the user password.
+  Returns an `%Changeset{}` for changing the user password.
 
   ## Examples
 
       iex> change_user_password(user)
-      %Ecto.Changeset{data: %User{}}
+      %Changeset{data: %User{}}
 
   """
-  @spec change_user_password(User.t(), map()) :: Ecto.Changeset.t()
+  @spec change_user_password(User.t(), map()) :: Changeset.t()
   def change_user_password(user, attrs \\ %{}) do
     User.password_changeset(user, attrs, hash_password: false)
   end
@@ -238,20 +241,20 @@ defmodule Cannery.Accounts do
       {:ok, %User{}}
 
       iex> update_user_password(user, "invalid password", %{password: ...})
-      {:error, %Ecto.Changeset{}}
+      {:error, %Changeset{}}
 
   """
   @spec update_user_password(User.t(), String.t(), map()) ::
-          {:ok, User.t()} | {:error, Ecto.Changeset.t()}
+          {:ok, User.t()} | {:error, Changeset.t()}
   def update_user_password(user, password, attrs) do
     changeset =
       user
       |> User.password_changeset(attrs)
       |> User.validate_current_password(password)
 
-    Ecto.Multi.new()
-    |> Ecto.Multi.update(:user, changeset)
-    |> Ecto.Multi.delete_all(:tokens, UserToken.user_and_contexts_query(user, :all))
+    Multi.new()
+    |> Multi.update(:user, changeset)
+    |> Multi.delete_all(:tokens, UserToken.user_and_contexts_query(user, :all))
     |> Repo.transaction()
     |> case do
       {:ok, %{user: user}} -> {:ok, user}
@@ -269,7 +272,7 @@ defmodule Cannery.Accounts do
   @doc """
   Generates a session token.
   """
-  @spec generate_user_session_token(User.t()) :: UserToken.t()
+  @spec generate_user_session_token(User.t()) :: String.t()
   def generate_user_session_token(user) do
     {token, user_token} = UserToken.build_session_token(user)
     Repo.insert!(user_token)
@@ -279,7 +282,7 @@ defmodule Cannery.Accounts do
   @doc """
   Gets the user with the given signed token.
   """
-  @spec get_user_by_session_token(UserToken.t()) :: User.t()
+  @spec get_user_by_session_token(String.t()) :: User.t()
   def get_user_by_session_token(token) do
     {:ok, query} = UserToken.verify_session_token_query(token)
     Repo.one(query)
@@ -288,7 +291,7 @@ defmodule Cannery.Accounts do
   @doc """
   Deletes the signed token with the given context.
   """
-  @spec delete_session_token(UserToken.t()) :: :ok
+  @spec delete_session_token(String.t()) :: :ok
   def delete_session_token(token) do
     Repo.delete_all(UserToken.token_and_context_query(token, "session"))
     :ok
@@ -298,7 +301,7 @@ defmodule Cannery.Accounts do
   Returns a boolean if registration is allowed or not
   """
   @spec allow_registration?() :: boolean()
-  def allow_registration?() do
+  def allow_registration? do
     Application.get_env(:cannery, CanneryWeb.Endpoint)[:registration] == "public" or
       list_users_by_role(:admin) |> Enum.empty?()
   end
@@ -336,7 +339,7 @@ defmodule Cannery.Accounts do
   If the token matches, the user account is marked as confirmed
   and the token is deleted.
   """
-  @spec confirm_user(UserToken.t()) :: {:ok, User.t()} | atom()
+  @spec confirm_user(String.t()) :: {:ok, User.t()} | atom()
   def confirm_user(token) do
     with {:ok, query} <- UserToken.verify_email_token_query(token, "confirm"),
          %User{} = user <- Repo.one(query),
@@ -348,9 +351,9 @@ defmodule Cannery.Accounts do
   end
 
   defp confirm_user_multi(user) do
-    Ecto.Multi.new()
-    |> Ecto.Multi.update(:user, User.confirm_changeset(user))
-    |> Ecto.Multi.delete_all(:tokens, UserToken.user_and_contexts_query(user, ["confirm"]))
+    Multi.new()
+    |> Multi.update(:user, User.confirm_changeset(user))
+    |> Multi.delete_all(:tokens, UserToken.user_and_contexts_query(user, ["confirm"]))
   end
 
   ## Reset password
@@ -385,7 +388,7 @@ defmodule Cannery.Accounts do
       nil
 
   """
-  @spec get_user_by_reset_password_token(UserToken.t()) :: User.t() | nil
+  @spec get_user_by_reset_password_token(String.t()) :: User.t() | nil
   def get_user_by_reset_password_token(token) do
     with {:ok, query} <- UserToken.verify_email_token_query(token, "reset_password"),
          %User{} = user <- Repo.one(query) do
@@ -404,14 +407,14 @@ defmodule Cannery.Accounts do
       {:ok, %User{}}
 
       iex> reset_user_password(user, %{password: "valid", password_confirmation: "not the same"})
-      {:error, %Ecto.Changeset{}}
+      {:error, %Changeset{}}
 
   """
-  @spec reset_user_password(User.t(), map()) :: {:ok, User.t()} | {:error, Ecto.Changeset.t()}
+  @spec reset_user_password(User.t(), map()) :: {:ok, User.t()} | {:error, Changeset.t()}
   def reset_user_password(user, attrs) do
-    Ecto.Multi.new()
-    |> Ecto.Multi.update(:user, User.password_changeset(user, attrs))
-    |> Ecto.Multi.delete_all(:tokens, UserToken.user_and_contexts_query(user, :all))
+    Multi.new()
+    |> Multi.update(:user, User.password_changeset(user, attrs))
+    |> Multi.delete_all(:tokens, UserToken.user_and_contexts_query(user, :all))
     |> Repo.transaction()
     |> case do
       {:ok, %{user: user}} -> {:ok, user}
diff --git a/lib/cannery/accounts/user.ex b/lib/cannery/accounts/user.ex
index 1e8af2d..8ef2253 100644
--- a/lib/cannery/accounts/user.ex
+++ b/lib/cannery/accounts/user.ex
@@ -1,8 +1,12 @@
 defmodule Cannery.Accounts.User do
+  @moduledoc """
+  A cannery user
+  """
+
   use Ecto.Schema
   import Ecto.Changeset
-  alias Cannery.Accounts.{User}
-  alias Cannery.Invites.{Invite}
+  alias Ecto.{Changeset, UUID}
+  alias Cannery.{Accounts.User, Invites.Invite}
 
   @derive {Inspect, except: [:password]}
   @primary_key {:id, :binary_id, autogenerate: true}
@@ -19,8 +23,8 @@ defmodule Cannery.Accounts.User do
     timestamps()
   end
 
-  @type t :: %{
-          id: Ecto.UUID.t(),
+  @type t :: %User{
+          id: UUID.t(),
           email: String.t(),
           password: String.t(),
           hashed_password: String.t(),
@@ -31,6 +35,8 @@ defmodule Cannery.Accounts.User do
           updated_at: NaiveDateTime.t()
         }
 
+  @type new_user :: %User{}
+
   @doc """
   A user changeset for registration.
 
@@ -48,8 +54,8 @@ defmodule Cannery.Accounts.User do
       validations on a LiveView form), this option can be set to `false`.
       Defaults to `true`.
   """
-  @spec registration_changeset(User.t(), map()) :: Ecto.Changeset.t()
-  @spec registration_changeset(User.t(), map(), keyword()) :: Ecto.Changeset.t()
+  @spec registration_changeset(User.t() | User.new_user(), map()) :: Changeset.t()
+  @spec registration_changeset(User.t() | User.new_user(), map(), keyword()) :: Changeset.t()
   def registration_changeset(user, attrs, opts \\ []) do
     user
     |> cast(attrs, [:email, :password, :role])
@@ -61,12 +67,12 @@ defmodule Cannery.Accounts.User do
   A user changeset for role.
 
   """
-  @spec role_changeset(User.t(), atom()) :: Ecto.Changeset.t()
+  @spec role_changeset(User.t(), atom()) :: Changeset.t()
   def role_changeset(user, role) do
     user |> cast(%{"role" => role}, [:role])
   end
 
-  @spec validate_email(Ecto.Changeset.t()) :: Ecto.Changeset.t()
+  @spec validate_email(Changeset.t()) :: Changeset.t()
   defp validate_email(changeset) do
     changeset
     |> validate_required([:email])
@@ -76,7 +82,7 @@ defmodule Cannery.Accounts.User do
     |> unique_constraint(:email)
   end
 
-  @spec validate_password(Ecto.Changeset.t(), keyword()) :: Ecto.Changeset.t()
+  @spec validate_password(Changeset.t(), keyword()) :: Changeset.t()
   defp validate_password(changeset, opts) do
     changeset
     |> validate_required([:password])
@@ -87,7 +93,7 @@ defmodule Cannery.Accounts.User do
     |> maybe_hash_password(opts)
   end
 
-  @spec maybe_hash_password(Ecto.Changeset.t(), keyword()) :: Ecto.Changeset.t()
+  @spec maybe_hash_password(Changeset.t(), keyword()) :: Changeset.t()
   defp maybe_hash_password(changeset, opts) do
     hash_password? = Keyword.get(opts, :hash_password, true)
     password = get_change(changeset, :password)
@@ -106,7 +112,7 @@ defmodule Cannery.Accounts.User do
 
   It requires the email to change otherwise an error is added.
   """
-  @spec email_changeset(User.t(), map()) :: Ecto.Changeset.t()
+  @spec email_changeset(User.t(), map()) :: Changeset.t()
   def email_changeset(user, attrs) do
     user
     |> cast(attrs, [:email])
@@ -129,8 +135,8 @@ defmodule Cannery.Accounts.User do
       validations on a LiveView form), this option can be set to `false`.
       Defaults to `true`.
   """
-  @spec password_changeset(User.t(), map()) :: Ecto.Changeset.t()
-  @spec password_changeset(User.t(), map(), keyword()) :: Ecto.Changeset.t()
+  @spec password_changeset(User.t(), map()) :: Changeset.t()
+  @spec password_changeset(User.t(), map(), keyword()) :: Changeset.t()
   def password_changeset(user, attrs, opts \\ []) do
     user
     |> cast(attrs, [:password])
@@ -141,10 +147,10 @@ defmodule Cannery.Accounts.User do
   @doc """
   Confirms the account by setting `confirmed_at`.
   """
-  @spec confirm_changeset(User.t()) :: Ecto.Changeset.t()
-  def confirm_changeset(user) do
+  @spec confirm_changeset(User.t() | Changeset.t()) :: Changeset.t()
+  def confirm_changeset(user_or_changeset) do
     now = NaiveDateTime.utc_now() |> NaiveDateTime.truncate(:second)
-    change(user, confirmed_at: now)
+    user_or_changeset |> change(confirmed_at: now)
   end
 
   @doc """
@@ -167,12 +173,10 @@ defmodule Cannery.Accounts.User do
   @doc """
   Validates the current password otherwise adds an error to the changeset.
   """
-  @spec validate_current_password(Ecto.Changeset.t(), String.t()) :: Ecto.UUID.t()
+  @spec validate_current_password(Changeset.t(), String.t()) :: Changeset.t()
   def validate_current_password(changeset, password) do
-    if valid_password?(changeset.data, password) do
-      changeset
-    else
-      add_error(changeset, :current_password, "is not valid")
-    end
+    if valid_password?(changeset.data, password),
+      do: changeset,
+      else: changeset |> add_error(:current_password, "is not valid")
   end
 end
diff --git a/lib/cannery/accounts/user_notifier.ex b/lib/cannery/accounts/user_notifier.ex
index 6a5b474..f4c5360 100644
--- a/lib/cannery/accounts/user_notifier.ex
+++ b/lib/cannery/accounts/user_notifier.ex
@@ -1,4 +1,8 @@
 defmodule Cannery.Accounts.UserNotifier do
+  @moduledoc """
+  Contains all user emails and notifications
+  """
+
   # For simplicity, this module simply logs messages to the terminal.
   # You should replace it by a proper email or notification tool, such as:
   #
diff --git a/lib/cannery/accounts/user_token.ex b/lib/cannery/accounts/user_token.ex
index 5ecdf23..9c359b8 100644
--- a/lib/cannery/accounts/user_token.ex
+++ b/lib/cannery/accounts/user_token.ex
@@ -1,7 +1,12 @@
 defmodule Cannery.Accounts.UserToken do
+  @moduledoc """
+  Schema for serialized user session and authentication tokens
+  """
+
   use Ecto.Schema
   import Ecto.Query
-  alias Cannery.{Accounts}
+  alias Ecto.{Query, UUID}
+  alias Cannery.{Accounts.User, Accounts.UserToken}
 
   @hash_algorithm :sha256
   @rand_size 32
@@ -19,19 +24,33 @@ defmodule Cannery.Accounts.UserToken do
     field :token, :binary
     field :context, :string
     field :sent_to, :string
-    belongs_to :user, Accounts.User
+
+    belongs_to :user, User
 
     timestamps(updated_at: false)
   end
 
+  @type t :: %UserToken{
+          id: UUID.t(),
+          token: String.t(),
+          context: String.t(),
+          sent_to: String.t(),
+          user: User.t(),
+          user_id: UUID.t(),
+          inserted_at: NaiveDateTime.t()
+        }
+
+  @type new_token :: %UserToken{}
+
   @doc """
   Generates a token that will be stored in a signed place,
   such as session or cookie. As they are signed, those
   tokens do not need to be hashed.
   """
-  def build_session_token(user) do
+  @spec build_session_token(User.t()) :: {token :: String.t(), UserToken.new_token()}
+  def build_session_token(%{id: user_id}) do
     token = :crypto.strong_rand_bytes(@rand_size)
-    {token, %Accounts.UserToken{token: token, context: "session", user_id: user.id}}
+    {token, %UserToken{token: token, context: "session", user_id: user_id}}
   end
 
   @doc """
@@ -39,6 +58,7 @@ defmodule Cannery.Accounts.UserToken do
 
   The query returns the user found by the token.
   """
+  @spec verify_session_token_query(String.t()) :: {:ok, Query.t()}
   def verify_session_token_query(token) do
     query =
       from token in token_and_context_query(token, "session"),
@@ -57,16 +77,19 @@ defmodule Cannery.Accounts.UserToken do
   The token is valid for a week as long as users don't change
   their email.
   """
+  @spec build_email_token(User.t(), String.t()) :: {String.t(), UserToken.new_token()}
   def build_email_token(user, context) do
     build_hashed_token(user, context, user.email)
   end
 
+  @spec build_hashed_token(User.t(), String.t(), String.t()) ::
+          {String.t(), UserToken.new_token()}
   defp build_hashed_token(user, context, sent_to) do
     token = :crypto.strong_rand_bytes(@rand_size)
     hashed_token = :crypto.hash(@hash_algorithm, token)
 
     {Base.url_encode64(token, padding: false),
-     %Accounts.UserToken{
+     %UserToken{
        token: hashed_token,
        context: context,
        sent_to: sent_to,
@@ -79,6 +102,7 @@ defmodule Cannery.Accounts.UserToken do
 
   The query returns the user found by the token.
   """
+  @spec verify_email_token_query(String.t(), String.t()) :: {:ok, Query.t()} | :error
   def verify_email_token_query(token, context) do
     case Base.url_decode64(token, padding: false) do
       {:ok, decoded_token} ->
@@ -98,6 +122,7 @@ defmodule Cannery.Accounts.UserToken do
     end
   end
 
+  @spec days_for_context(<<_::56>>) :: non_neg_integer()
   defp days_for_context("confirm"), do: @confirm_validity_in_days
   defp days_for_context("reset_password"), do: @reset_password_validity_in_days
 
@@ -106,6 +131,7 @@ defmodule Cannery.Accounts.UserToken do
 
   The query returns the user token record.
   """
+  @spec verify_change_email_token_query(String.t(), String.t()) :: {:ok, Query.t()} | :error
   def verify_change_email_token_query(token, context) do
     case Base.url_decode64(token, padding: false) do
       {:ok, decoded_token} ->
@@ -125,18 +151,20 @@ defmodule Cannery.Accounts.UserToken do
   @doc """
   Returns the given token with the given context.
   """
+  @spec token_and_context_query(String.t(), String.t()) :: Query.t()
+  @spec token_and_context_query(User.t(), :all | nonempty_maybe_improper_list()) :: Query.t()
   def token_and_context_query(token, context) do
-    from Accounts.UserToken, where: [token: ^token, context: ^context]
+    from UserToken, where: [token: ^token, context: ^context]
   end
 
   @doc """
   Gets all tokens for the given user for the given contexts.
   """
-  def user_and_contexts_query(user, :all) do
-    from t in Accounts.UserToken, where: t.user_id == ^user.id
+  def user_and_contexts_query(%{id: user_id}, :all) do
+    from t in UserToken, where: t.user_id == ^user_id
   end
 
-  def user_and_contexts_query(user, [_ | _] = contexts) do
-    from t in Accounts.UserToken, where: t.user_id == ^user.id and t.context in ^contexts
+  def user_and_contexts_query(%{id: user_id}, [_ | _] = contexts) do
+    from t in UserToken, where: t.user_id == ^user_id and t.context in ^contexts
   end
 end
diff --git a/lib/cannery/ammo/ammo_group.ex b/lib/cannery/ammo/ammo_group.ex
index 247ac45..1478e56 100644
--- a/lib/cannery/ammo/ammo_group.ex
+++ b/lib/cannery/ammo/ammo_group.ex
@@ -1,4 +1,11 @@
 defmodule Cannery.Ammo.AmmoGroup do
+  @moduledoc """
+  A group of a certain ammunition type.
+
+  Can be placed in a container, and contains auxiliary information such as the
+  amount paid for that ammunition, or what condition it is in
+  """
+
   use Ecto.Schema
   import Ecto.Changeset
   alias Cannery.{Accounts, Ammo, Containers, Tags}
diff --git a/lib/cannery/ammo/ammo_type.ex b/lib/cannery/ammo/ammo_type.ex
index e2c4ebb..bfe67af 100644
--- a/lib/cannery/ammo/ammo_type.ex
+++ b/lib/cannery/ammo/ammo_type.ex
@@ -1,4 +1,10 @@
 defmodule Cannery.Ammo.AmmoType do
+  @moduledoc """
+  An ammunition type.
+
+  Contains statistical information about the ammunition.
+  """
+
   use Ecto.Schema
   import Ecto.Changeset
 
diff --git a/lib/cannery/containers.ex b/lib/cannery/containers.ex
index e47bf10..1d4ea21 100644
--- a/lib/cannery/containers.ex
+++ b/lib/cannery/containers.ex
@@ -4,9 +4,8 @@ defmodule Cannery.Containers do
   """
 
   import Ecto.Query, warn: false
-  alias Cannery.Repo
-
-  alias Cannery.Containers.Container
+  alias Cannery.{Containers.Container, Repo}
+  alias Ecto.{Changeset, UUID}
 
   @doc """
   Returns the list of containers.
@@ -17,6 +16,7 @@ defmodule Cannery.Containers do
       [%Container{}, ...]
 
   """
+  @spec list_containers() :: [Container.t()]
   def list_containers do
     Repo.all(Container)
   end
@@ -35,6 +35,7 @@ defmodule Cannery.Containers do
       ** (Ecto.NoResultsError)
 
   """
+  @spec get_container!(container_id :: UUID.t()) :: Container.t()
   def get_container!(id), do: Repo.get!(Container, id)
 
   @doc """
@@ -49,10 +50,9 @@ defmodule Cannery.Containers do
       {:error, %Ecto.Changeset{}}
 
   """
-  def create_container(attrs \\ %{}) do
-    %Container{}
-    |> Container.changeset(attrs)
-    |> Repo.insert()
+  @spec create_container(attrs :: map()) :: {:ok, Container.t()} | {:error, Changeset.t()}
+  def create_container(attrs) do
+    %Container{} |> Container.changeset(attrs) |> Repo.insert()
   end
 
   @doc """
@@ -67,10 +67,10 @@ defmodule Cannery.Containers do
       {:error, %Ecto.Changeset{}}
 
   """
-  def update_container(%Container{} = container, attrs) do
-    container
-    |> Container.changeset(attrs)
-    |> Repo.update()
+  @spec update_container(Container.t() | Ecto.Changeset.t(), map()) ::
+          {:ok, Container.t()} | {:error, Ecto.Changeset.t()}
+  def update_container(container, attrs) do
+    container |> Container.changeset(attrs) |> Repo.update()
   end
 
   @doc """
@@ -85,9 +85,9 @@ defmodule Cannery.Containers do
       {:error, %Ecto.Changeset{}}
 
   """
-  def delete_container(%Container{} = container) do
-    Repo.delete(container)
-  end
+  @spec delete_container(Container.t() | Ecto.Changeset.t()) ::
+          {:ok, Container.t()} | {:error, Ecto.Changeset.t()}
+  def delete_container(container), do: Repo.delete(container)
 
   @doc """
   Returns an `%Ecto.Changeset{}` for tracking container changes.
@@ -97,8 +97,11 @@ defmodule Cannery.Containers do
       iex> change_container(container)
       %Ecto.Changeset{data: %Container{}}
 
+      iex> change_container(%Ecto.Changeset{})
+      %Ecto.Changeset{data: %Container{}}
+
   """
-  def change_container(%Container{} = container, attrs \\ %{}) do
-    Container.changeset(container, attrs)
-  end
+  @spec change_container(Container.t()) :: Changeset.t()
+  @spec change_container(Container.t(), map()) :: Changeset.t()
+  def change_container(container, attrs \\ %{}), do: container |> Container.changeset(attrs)
 end
diff --git a/lib/cannery/containers/container.ex b/lib/cannery/containers/container.ex
index 019550c..59247a1 100644
--- a/lib/cannery/containers/container.ex
+++ b/lib/cannery/containers/container.ex
@@ -1,7 +1,12 @@
 defmodule Cannery.Containers.Container do
+  @moduledoc """
+  A container that holds ammunition and belongs to a user.
+  """
+
   use Ecto.Schema
   import Ecto.Changeset
-  alias Cannery.{Accounts}
+  alias Ecto.{Changeset, UUID}
+  alias Cannery.{Accounts.User, Containers.Container}
 
   @primary_key {:id, :binary_id, autogenerate: true}
   @foreign_key_type :binary_id
@@ -11,27 +16,30 @@ defmodule Cannery.Containers.Container do
     field :location, :string
     field :type, :string
 
-    belongs_to :user, Accounts.User
+    belongs_to :user, User
 
     timestamps()
   end
 
-  @type t :: %{
-          id: Ecto.UUID.t(),
+  @type t :: %Container{
+          id: UUID.t(),
           name: String.t(),
           desc: String.t(),
           location: String.t(),
           type: String.t(),
-          user: Accounts.User.t(),
-          user_id: Ecto.UUID.t(),
+          user: User.t(),
+          user_id: UUID.t(),
           inserted_at: NaiveDateTime.t(),
           updated_at: NaiveDateTime.t()
         }
 
+  @type new_container :: %Container{}
+
   @doc false
+  @spec changeset(Container.t() | Container.new_container(), map()) :: Changeset.t()
   def changeset(container, attrs) do
     container
     |> cast(attrs, [:name, :desc, :type, :location, :user_id])
-    |> validate_required([:name, :desc, :type, :location, :user_id])
+    |> validate_required([:name, :type, :user_id])
   end
 end
diff --git a/lib/cannery/containers/container_tag.ex b/lib/cannery/containers/container_tag.ex
index b88b506..abc58a1 100644
--- a/lib/cannery/containers/container_tag.ex
+++ b/lib/cannery/containers/container_tag.ex
@@ -1,28 +1,34 @@
 defmodule Cannery.Containers.ContainerTag do
+  @moduledoc """
+  Thru-table struct for associating Cannery.Containers.Container and
+  Cannery.Tags.Tag.
+  """
+
   use Ecto.Schema
   import Ecto.Changeset
-  alias Cannery.{Containers, Tags}
+  alias Cannery.{Containers.Container, Containers.ContainerTag, Tags.Tag}
 
   @primary_key {:id, :binary_id, autogenerate: true}
   @foreign_key_type :binary_id
   schema "container_tags" do
-    belongs_to :container, Containers.Container
-    belongs_to :tag, Tags.Tag
+    belongs_to :container, Container
+    belongs_to :tag, Tag
 
     timestamps()
   end
 
-  @type t :: %{
+  @type t :: %ContainerTag{
           id: Ecto.UUID.t(),
-          container: Containers.Container.t(),
+          container: Container.t(),
           container_id: Ecto.UUID.t(),
-          tag: Tags.Tag.t(),
+          tag: Tag.t(),
           tag_id: Ecto.UUID.t(),
           inserted_at: NaiveDateTime.t(),
           updated_at: NaiveDateTime.t()
         }
 
   @doc false
+  @spec changeset(ContainerTag.t(), map()) :: Ecto.Changeset.t()
   def changeset(container_tag, attrs) do
     container_tag
     |> cast(attrs, [:tag_id, :container_id])
diff --git a/lib/cannery/invites.ex b/lib/cannery/invites.ex
index 9e95aae..1399802 100644
--- a/lib/cannery/invites.ex
+++ b/lib/cannery/invites.ex
@@ -4,8 +4,8 @@ defmodule Cannery.Invites do
   """
 
   import Ecto.Query, warn: false
-  alias Cannery.{Accounts, Repo}
-  alias Cannery.Invites.Invite
+  alias Ecto.{Changeset, UUID}
+  alias Cannery.{Accounts.User, Invites.Invite, Repo}
 
   @invite_token_length 20
 
@@ -49,7 +49,7 @@ defmodule Cannery.Invites do
       iex> get_invite_by_token("invalid_token")
       nil
   """
-  @spec get_invite_by_token(String.t()) :: Invite.t() | nil
+  @spec get_invite_by_token(String.t() | nil) :: Invite.t() | nil
   def get_invite_by_token(nil), do: nil
   def get_invite_by_token(""), do: nil
 
@@ -86,22 +86,22 @@ defmodule Cannery.Invites do
 
   ## Examples
 
-      iex> create_invite(%Accounts.User{id: "1"}, %{field: value})
+      iex> create_invite(%User{id: "1"}, %{field: value})
       {:ok, %Invite{}}
 
       iex> create_invite("1", %{field: value})
       {:ok, %Invite{}}
 
-      iex> create_invite(%Accounts.User{id: "1"}, %{field: bad_value})
+      iex> create_invite(%User{id: "1"}, %{field: bad_value})
       {:error, %Ecto.Changeset{}}
 
   """
-  @spec create_invite(user_or_user_id :: Accounts.User.t() | Ecto.UUID.t(), attrs :: map()) ::
-          Invite.t()
-  def create_invite(%{id: user_id}, attrs) do
-    create_invite(user_id, attrs)
-  end
+  @spec create_invite(user :: User.t(), attrs :: map()) ::
+          {:ok, Invite.t()} | {:error, Changeset.t()}
+  def create_invite(%{id: user_id}, attrs), do: create_invite(user_id, attrs)
 
+  @spec create_invite(user_id :: UUID.t(), attrs :: map()) ::
+          {:ok, Invite.t()} | {:error, Changeset.t()}
   def create_invite(user_id, attrs) when not (user_id |> is_nil()) do
     attrs =
       attrs
diff --git a/lib/cannery/invites/invite.ex b/lib/cannery/invites/invite.ex
index b9107a4..506abda 100644
--- a/lib/cannery/invites/invite.ex
+++ b/lib/cannery/invites/invite.ex
@@ -1,7 +1,14 @@
 defmodule Cannery.Invites.Invite do
+  @moduledoc """
+  An invite, created by an admin to allow someone to join their instance. An
+  invite can be enabled or disabled, and can have an optional number of uses if
+  `:uses_left` is defined.
+  """
+
   use Ecto.Schema
   import Ecto.Changeset
-  alias Cannery.{Accounts}
+  alias Ecto.{Changeset, UUID}
+  alias Cannery.{Accounts.User, Invites.Invite}
 
   @primary_key {:id, :binary_id, autogenerate: true}
   @foreign_key_type :binary_id
@@ -11,22 +18,27 @@ defmodule Cannery.Invites.Invite do
     field :uses_left, :integer, default: nil
     field :disabled_at, :naive_datetime
 
-    belongs_to :user, Accounts.User
+    belongs_to :user, User
 
     timestamps()
   end
 
-  @type t :: %{
-          id: Ecto.UUID.t(),
+  @type t :: %Invite{
+          id: UUID.t(),
           name: String.t(),
           token: String.t(),
           uses_left: integer() | nil,
           disabled_at: NaiveDateTime.t(),
-          user: Accounts.User.t(),
-          user_id: Ecto.UUID.t()
+          user: User.t(),
+          user_id: UUID.t(),
+          inserted_at: NaiveDateTime.t(),
+          updated_at: NaiveDateTime.t()
         }
 
+  @type new_invite :: %Invite{}
+
   @doc false
+  @spec changeset(Invite.t() | Invite.new_invite(), map()) :: Changeset.t()
   def changeset(invite, attrs) do
     invite
     |> cast(attrs, [:name, :token, :uses_left, :disabled_at, :user_id])
diff --git a/lib/cannery/mailer.ex b/lib/cannery/mailer.ex
index b1cad17..ee9a784 100644
--- a/lib/cannery/mailer.ex
+++ b/lib/cannery/mailer.ex
@@ -1,3 +1,7 @@
 defmodule Cannery.Mailer do
+  @moduledoc """
+  Mailer adapter for emails
+  """
+
   use Swoosh.Mailer, otp_app: :cannery
 end
diff --git a/lib/cannery/release.ex b/lib/cannery/release.ex
index 1ddcbc2..c86ede1 100644
--- a/lib/cannery/release.ex
+++ b/lib/cannery/release.ex
@@ -1,4 +1,10 @@
 defmodule Cannery.Release do
+  @moduledoc """
+  Contains tasks that will be included in the Mix release
+
+  Ex. `load_app/0` can be invoked with `mix load_app`.
+  """
+
   @app :cannery
 
   def rollback(repo, version) do
diff --git a/lib/cannery/repo/migrator.ex b/lib/cannery/repo/migrator.ex
index 42aa8e5..324d333 100644
--- a/lib/cannery/repo/migrator.ex
+++ b/lib/cannery/repo/migrator.ex
@@ -1,4 +1,8 @@
 defmodule Cannery.Repo.Migrator do
+  @moduledoc """
+  Genserver to automatically run migrations in prod env
+  """
+
   use GenServer
   require Logger
 
diff --git a/lib/cannery/tags/tag.ex b/lib/cannery/tags/tag.ex
index b9beb2c..1c37475 100644
--- a/lib/cannery/tags/tag.ex
+++ b/lib/cannery/tags/tag.ex
@@ -1,7 +1,13 @@
 defmodule Cannery.Tags.Tag do
+  @moduledoc """
+  Tags are added to containers to help organize, and can include custom-defined
+  text and bg colors.
+  """
+
   use Ecto.Schema
   import Ecto.Changeset
-  alias Cannery.{Accounts}
+  alias Ecto.{Changeset, UUID}
+  alias Cannery.{Accounts.User, Tags.Tag}
 
   @primary_key {:id, :binary_id, autogenerate: true}
   @foreign_key_type :binary_id
@@ -10,23 +16,26 @@ defmodule Cannery.Tags.Tag do
     field :bg_color, :string
     field :text_color, :string
 
-    belongs_to :user, Accounts.User
+    belongs_to :user, User
 
     timestamps()
   end
 
-  @type t :: %{
-          id: Ecto.UUID.t(),
+  @type t :: %Tag{
+          id: UUID.t(),
           name: String.t(),
           bg_color: String.t(),
           text_color: String.t(),
-          user: Accounts.User.t(),
-          user_id: Ecto.UUID.t(),
+          user: User.t(),
+          user_id: UUID.t(),
           inserted_at: NaiveDateTime.t(),
           updated_at: NaiveDateTime.t()
         }
 
+  @type new_tag() :: %Tag{}
+
   @doc false
+  @spec changeset(Tag.t() | Tag.new_tag(), map()) :: Changeset.t()
   def changeset(tag, attrs) do
     tag
     |> cast(attrs, [:name, :bg_color, :text_color, :user_id])
diff --git a/lib/cannery_web/component/topbar.ex b/lib/cannery_web/component/topbar.ex
index ad4c606..9581514 100644
--- a/lib/cannery_web/component/topbar.ex
+++ b/lib/cannery_web/component/topbar.ex
@@ -1,8 +1,12 @@
 defmodule CanneryWeb.Component.Topbar do
+  @moduledoc """
+  Component that renders a topbar with user functions/links
+  """
+
   use CanneryWeb, :component
 
-  alias Cannery.{Accounts}
-  alias CanneryWeb.{HomeLive}
+  alias Cannery.Accounts
+  alias CanneryWeb.HomeLive
 
   def topbar(assigns) do
     assigns =
diff --git a/lib/cannery_web/controllers/user_auth.ex b/lib/cannery_web/controllers/user_auth.ex
index 743fc1c..ed08be4 100644
--- a/lib/cannery_web/controllers/user_auth.ex
+++ b/lib/cannery_web/controllers/user_auth.ex
@@ -1,9 +1,13 @@
 defmodule CanneryWeb.UserAuth do
+  @moduledoc """
+  Functions for user session and authentication
+  """
+
   import Plug.Conn
   import Phoenix.Controller
 
   alias Cannery.Accounts
-  alias CanneryWeb.{HomeLive}
+  alias CanneryWeb.HomeLive
   alias CanneryWeb.Router.Helpers, as: Routes
 
   # Make the remember me cookie valid for 60 days.
@@ -37,6 +41,11 @@ defmodule CanneryWeb.UserAuth do
     |> redirect(to: user_return_to || signed_in_path(conn))
   end
 
+  @spec maybe_write_remember_me_cookie(
+          Plug.Conn.t(),
+          String.t() | any(),
+          %{required(String.t()) => String.t()} | any()
+        ) :: Plug.Conn.t()
   defp maybe_write_remember_me_cookie(conn, token, %{"remember_me" => "true"}) do
     put_resp_cookie(conn, @remember_me_cookie, token, @remember_me_options)
   end
diff --git a/lib/cannery_web/live/ammo_group_live/form_component.ex b/lib/cannery_web/live/ammo_group_live/form_component.ex
index 1c89f3b..31403b4 100644
--- a/lib/cannery_web/live/ammo_group_live/form_component.ex
+++ b/lib/cannery_web/live/ammo_group_live/form_component.ex
@@ -1,4 +1,8 @@
 defmodule CanneryWeb.AmmoGroupLive.FormComponent do
+  @moduledoc """
+  Livecomponent that can update or create an Cannery.Ammo.AmmoGroup
+  """
+
   use CanneryWeb, :live_component
 
   alias Cannery.Ammo
diff --git a/lib/cannery_web/live/ammo_group_live/index.ex b/lib/cannery_web/live/ammo_group_live/index.ex
index f7ab770..33952f0 100644
--- a/lib/cannery_web/live/ammo_group_live/index.ex
+++ b/lib/cannery_web/live/ammo_group_live/index.ex
@@ -1,4 +1,8 @@
 defmodule CanneryWeb.AmmoGroupLive.Index do
+  @moduledoc """
+  Liveview to show a Cannery.Ammo.AmmoGroup index
+  """
+
   use CanneryWeb, :live_view
 
   alias Cannery.Ammo
diff --git a/lib/cannery_web/live/ammo_group_live/show.ex b/lib/cannery_web/live/ammo_group_live/show.ex
index 2e32442..658377c 100644
--- a/lib/cannery_web/live/ammo_group_live/show.ex
+++ b/lib/cannery_web/live/ammo_group_live/show.ex
@@ -1,4 +1,8 @@
 defmodule CanneryWeb.AmmoGroupLive.Show do
+  @moduledoc """
+  Liveview for showing and editing an Cannery.Ammo.AmmoGroup
+  """
+
   use CanneryWeb, :live_view
 
   alias Cannery.Ammo
diff --git a/lib/cannery_web/live/ammo_type_live/form_component.ex b/lib/cannery_web/live/ammo_type_live/form_component.ex
index 2cd5cbf..965bd0c 100644
--- a/lib/cannery_web/live/ammo_type_live/form_component.ex
+++ b/lib/cannery_web/live/ammo_type_live/form_component.ex
@@ -1,4 +1,8 @@
 defmodule CanneryWeb.AmmoTypeLive.FormComponent do
+  @moduledoc """
+  Livecomponent that can update or create an Cannery.Ammo.AmmoType
+  """
+
   use CanneryWeb, :live_component
 
   alias Cannery.Ammo
diff --git a/lib/cannery_web/live/ammo_type_live/index.ex b/lib/cannery_web/live/ammo_type_live/index.ex
index 6509ed0..8a7cab8 100644
--- a/lib/cannery_web/live/ammo_type_live/index.ex
+++ b/lib/cannery_web/live/ammo_type_live/index.ex
@@ -1,4 +1,8 @@
 defmodule CanneryWeb.AmmoTypeLive.Index do
+  @moduledoc """
+  Liveview for showing a Cannery.Ammo.AmmoType index
+  """
+
   use CanneryWeb, :live_view
 
   alias Cannery.Ammo
diff --git a/lib/cannery_web/live/ammo_type_live/show.ex b/lib/cannery_web/live/ammo_type_live/show.ex
index 5bd3b24..1303522 100644
--- a/lib/cannery_web/live/ammo_type_live/show.ex
+++ b/lib/cannery_web/live/ammo_type_live/show.ex
@@ -1,4 +1,8 @@
 defmodule CanneryWeb.AmmoTypeLive.Show do
+  @moduledoc """
+  Liveview for showing and editing an Cannery.Ammo.AmmoType
+  """
+
   use CanneryWeb, :live_view
 
   alias Cannery.Ammo
diff --git a/lib/cannery_web/live/container_live/form_component.ex b/lib/cannery_web/live/container_live/form_component.ex
index 9e0ea90..51e6331 100644
--- a/lib/cannery_web/live/container_live/form_component.ex
+++ b/lib/cannery_web/live/container_live/form_component.ex
@@ -1,4 +1,8 @@
 defmodule CanneryWeb.ContainerLive.FormComponent do
+  @moduledoc """
+  Livecomponent that can update or create an Cannery.Containers.Container
+  """
+
   use CanneryWeb, :live_component
 
   alias Cannery.Containers
diff --git a/lib/cannery_web/live/container_live/index.ex b/lib/cannery_web/live/container_live/index.ex
index 7ef07fa..8619c79 100644
--- a/lib/cannery_web/live/container_live/index.ex
+++ b/lib/cannery_web/live/container_live/index.ex
@@ -1,4 +1,8 @@
 defmodule CanneryWeb.ContainerLive.Index do
+  @moduledoc """
+  Liveview for showing Cannery.Containers.Container index
+  """
+
   use CanneryWeb, :live_view
 
   alias Cannery.Containers
diff --git a/lib/cannery_web/live/container_live/show.ex b/lib/cannery_web/live/container_live/show.ex
index b81e6a9..b7c6aed 100644
--- a/lib/cannery_web/live/container_live/show.ex
+++ b/lib/cannery_web/live/container_live/show.ex
@@ -1,4 +1,8 @@
 defmodule CanneryWeb.ContainerLive.Show do
+  @moduledoc """
+  Liveview for showing and editing a Cannery.Containers.Container
+  """
+
   use CanneryWeb, :live_view
 
   alias Cannery.Containers
diff --git a/lib/cannery_web/live/home_live.ex b/lib/cannery_web/live/home_live.ex
index 8c45d27..87d0630 100644
--- a/lib/cannery_web/live/home_live.ex
+++ b/lib/cannery_web/live/home_live.ex
@@ -1,6 +1,10 @@
 defmodule CanneryWeb.HomeLive do
+  @moduledoc """
+  Liveview for the home page
+  """
+
   use CanneryWeb, :live_view
-  alias Cannery.{Accounts}
+  alias Cannery.Accounts
 
   @impl true
   def mount(_params, session, socket) do
diff --git a/lib/cannery_web/live/invite_live/form_component.ex b/lib/cannery_web/live/invite_live/form_component.ex
index b5f8a67..ae93b80 100644
--- a/lib/cannery_web/live/invite_live/form_component.ex
+++ b/lib/cannery_web/live/invite_live/form_component.ex
@@ -1,4 +1,8 @@
 defmodule CanneryWeb.InviteLive.FormComponent do
+  @moduledoc """
+  Livecomponent that can update or create an Cannery.Invites.Invite
+  """
+
   use CanneryWeb, :live_component
 
   alias Cannery.Invites
diff --git a/lib/cannery_web/live/invite_live/index.ex b/lib/cannery_web/live/invite_live/index.ex
index 93f1bb0..f13f5d5 100644
--- a/lib/cannery_web/live/invite_live/index.ex
+++ b/lib/cannery_web/live/invite_live/index.ex
@@ -1,8 +1,12 @@
 defmodule CanneryWeb.InviteLive.Index do
+  @moduledoc """
+  Liveview to show a Cannery.Invites.Invite index
+  """
+
   use CanneryWeb, :live_view
 
-  alias Cannery.{Invites}
-  alias Cannery.Invites.{Invite}
+  alias Cannery.Invites
+  alias Cannery.Invites.Invite
 
   @impl true
   def mount(_params, session, socket) do
diff --git a/lib/cannery_web/live/live_helpers.ex b/lib/cannery_web/live/live_helpers.ex
index 6c6167a..ba05d0f 100644
--- a/lib/cannery_web/live/live_helpers.ex
+++ b/lib/cannery_web/live/live_helpers.ex
@@ -1,7 +1,11 @@
 defmodule CanneryWeb.LiveHelpers do
+  @moduledoc """
+  Contains common helper functions for liveviews
+  """
+
   import Phoenix.LiveView.Helpers
   import Phoenix.LiveView, only: [assign_new: 3]
-  alias Cannery.{Accounts}
+  alias Cannery.Accounts
 
   @doc """
   Renders a component inside the `CanneryWeb.ModalComponent` component.
diff --git a/lib/cannery_web/live/modal_component.ex b/lib/cannery_web/live/modal_component.ex
index 2000bd5..007b9dc 100644
--- a/lib/cannery_web/live/modal_component.ex
+++ b/lib/cannery_web/live/modal_component.ex
@@ -1,4 +1,8 @@
 defmodule CanneryWeb.ModalComponent do
+  @moduledoc """
+  Livecomponent that displays a floating modal window
+  """
+
   use CanneryWeb, :live_component
 
   @impl true
diff --git a/lib/cannery_web/live/tag_live/form_component.ex b/lib/cannery_web/live/tag_live/form_component.ex
index 51d2162..b5128b1 100644
--- a/lib/cannery_web/live/tag_live/form_component.ex
+++ b/lib/cannery_web/live/tag_live/form_component.ex
@@ -1,4 +1,8 @@
 defmodule CanneryWeb.TagLive.FormComponent do
+  @moduledoc """
+  Livecomponent that can update or create an Cannery.Tags.Tag
+  """
+
   use CanneryWeb, :live_component
 
   alias Cannery.Tags
@@ -103,7 +107,7 @@ defmodule CanneryWeb.TagLive.FormComponent do
   Returns a random tag color in `#ffffff` hex format
   """
   @spec random_color() :: String.t()
-  def random_color() do
+  def random_color do
     ["#cc0066", "#ff6699", "#6666ff", "#0066cc", "#00cc66", "#669900", "#ff9900", "#996633"]
     |> Enum.random()
   end
diff --git a/lib/cannery_web/live/tag_live/index.ex b/lib/cannery_web/live/tag_live/index.ex
index b5dbe37..61afe1d 100644
--- a/lib/cannery_web/live/tag_live/index.ex
+++ b/lib/cannery_web/live/tag_live/index.ex
@@ -1,4 +1,8 @@
 defmodule CanneryWeb.TagLive.Index do
+  @moduledoc """
+  Liveview to show a Cannery.Tags.Tag index
+  """
+
   use CanneryWeb, :live_view
 
   alias Cannery.Tags
diff --git a/lib/cannery_web/telemetry.ex b/lib/cannery_web/telemetry.ex
index d38ec23..021f6c0 100644
--- a/lib/cannery_web/telemetry.ex
+++ b/lib/cannery_web/telemetry.ex
@@ -1,4 +1,8 @@
 defmodule CanneryWeb.Telemetry do
+  @moduledoc """
+  Collects telemetry
+  """
+
   use Supervisor
   import Telemetry.Metrics
 
diff --git a/lib/cannery_web/views/layout_view.ex b/lib/cannery_web/views/layout_view.ex
index c55c1a9..bb47d2a 100644
--- a/lib/cannery_web/views/layout_view.ex
+++ b/lib/cannery_web/views/layout_view.ex
@@ -1,7 +1,7 @@
 defmodule CanneryWeb.LayoutView do
   use CanneryWeb, :view
-  alias Cannery.{Accounts}
-  alias CanneryWeb.{HomeLive}
+  alias Cannery.Accounts
+  alias CanneryWeb.HomeLive
 
   # Phoenix LiveDashboard is available only in development by default,
   # so we instruct Elixir to not warn if the dashboard route is missing.
diff --git a/test/support/channel_case.ex b/test/support/channel_case.ex
index 018f090..dbe33e9 100644
--- a/test/support/channel_case.ex
+++ b/test/support/channel_case.ex
@@ -16,6 +16,7 @@ defmodule CanneryWeb.ChannelCase do
   """
 
   use ExUnit.CaseTemplate
+  alias Ecto.Adapters.SQL.Sandbox
 
   using do
     quote do
@@ -29,8 +30,8 @@ defmodule CanneryWeb.ChannelCase do
   end
 
   setup tags do
-    pid = Ecto.Adapters.SQL.Sandbox.start_owner!(Cannery.Repo, shared: not tags[:async])
-    on_exit(fn -> Ecto.Adapters.SQL.Sandbox.stop_owner(pid) end)
+    pid = Sandbox.start_owner!(Cannery.Repo, shared: not tags[:async])
+    on_exit(fn -> Sandbox.stop_owner(pid) end)
     :ok
   end
 end
diff --git a/test/support/conn_case.ex b/test/support/conn_case.ex
index 5031433..3c8d17e 100644
--- a/test/support/conn_case.ex
+++ b/test/support/conn_case.ex
@@ -16,6 +16,7 @@ defmodule CanneryWeb.ConnCase do
   """
 
   use ExUnit.CaseTemplate
+  alias Ecto.Adapters.SQL.Sandbox
 
   using do
     quote do
@@ -32,8 +33,8 @@ defmodule CanneryWeb.ConnCase do
   end
 
   setup tags do
-    pid = Ecto.Adapters.SQL.Sandbox.start_owner!(Cannery.Repo, shared: not tags[:async])
-    on_exit(fn -> Ecto.Adapters.SQL.Sandbox.stop_owner(pid) end)
+    pid = Sandbox.start_owner!(Cannery.Repo, shared: not tags[:async])
+    on_exit(fn -> Sandbox.stop_owner(pid) end)
     {:ok, conn: Phoenix.ConnTest.build_conn()}
   end
 
diff --git a/test/support/data_case.ex b/test/support/data_case.ex
index 403d8ee..d336fc5 100644
--- a/test/support/data_case.ex
+++ b/test/support/data_case.ex
@@ -15,6 +15,7 @@ defmodule Cannery.DataCase do
   """
 
   use ExUnit.CaseTemplate
+  alias Ecto.Adapters.SQL.Sandbox
 
   using do
     quote do
@@ -28,8 +29,8 @@ defmodule Cannery.DataCase do
   end
 
   setup tags do
-    pid = Ecto.Adapters.SQL.Sandbox.start_owner!(Cannery.Repo, shared: not tags[:async])
-    on_exit(fn -> Ecto.Adapters.SQL.Sandbox.stop_owner(pid) end)
+    pid = Sandbox.start_owner!(Cannery.Repo, shared: not tags[:async])
+    on_exit(fn -> Sandbox.stop_owner(pid) end)
     :ok
   end
 
diff --git a/test/support/fixtures/accounts_fixtures.ex b/test/support/fixtures/accounts_fixtures.ex
index b0135eb..bef7855 100644
--- a/test/support/fixtures/accounts_fixtures.ex
+++ b/test/support/fixtures/accounts_fixtures.ex
@@ -4,7 +4,7 @@ defmodule Cannery.AccountsFixtures do
   entities via the `Cannery.Accounts` context.
   """
 
-  alias Cannery.{Accounts}
+  alias Cannery.Accounts
 
   def unique_user_email, do: "user#{System.unique_integer()}@example.com"
   def valid_user_password, do: "hello world!"