From 6f57728a6d659b1fd90350f14afb1144c1b9a623 Mon Sep 17 00:00:00 2001
From: Chili Palmer <hugoms@me.com>
Date: Thu, 23 Apr 2026 12:51:59 +0200
Subject: [PATCH] feat:added more persistence code

---
 lib/bds/posts.ex              | 76 ++++++++++++++++++++++++++++++-
 lib/bds/projects.ex           | 38 +++++++++++++++-
 lib/bds/scripts.ex            | 69 ++++++++++++++++++++++++++++
 lib/bds/scripts/script.ex     | 35 +++++++++++++++
 lib/bds/tags.ex               | 85 +++++++++++++++++++++++++++++++++++
 lib/bds/tags/tag.ex           | 28 ++++++++++++
 lib/bds/templates.ex          | 64 ++++++++++++++++++++++++++
 lib/bds/templates/template.ex | 34 ++++++++++++++
 test/bds/posts_test.exs       | 47 +++++++++++++++++++
 test/bds/projects_test.exs    | 17 +++++++
 test/bds/scripts_test.exs     | 37 +++++++++++++++
 test/bds/tags_test.exs        | 42 +++++++++++++++++
 test/bds/templates_test.exs   | 31 +++++++++++++
 13 files changed, 601 insertions(+), 2 deletions(-)
 create mode 100644 lib/bds/scripts.ex
 create mode 100644 lib/bds/scripts/script.ex
 create mode 100644 lib/bds/tags.ex
 create mode 100644 lib/bds/tags/tag.ex
 create mode 100644 lib/bds/templates.ex
 create mode 100644 lib/bds/templates/template.ex
 create mode 100644 test/bds/scripts_test.exs
 create mode 100644 test/bds/tags_test.exs
 create mode 100644 test/bds/templates_test.exs

diff --git a/lib/bds/posts.ex b/lib/bds/posts.ex
index 8286183..ba0e57a 100644
--- a/lib/bds/posts.ex
+++ b/lib/bds/posts.ex
@@ -4,6 +4,7 @@ defmodule BDS.Posts do
   import Ecto.Query
 
   alias BDS.Posts.Post
+  alias BDS.Projects
   alias BDS.Repo
   alias BDS.Slug
 
@@ -65,6 +66,32 @@ defmodule BDS.Posts do
     end
   end
 
+  def publish_post(post_id) do
+    case Repo.get(Post, post_id) do
+      nil ->
+        {:error, :not_found}
+
+      %Post{} = post ->
+        project = Projects.get_project!(post.project_id)
+        published_at = post.published_at || System.system_time(:second)
+        relative_path = build_post_relative_path(post.slug, post.created_at)
+        full_path = Path.join(Projects.project_data_dir(project), relative_path)
+
+        :ok = File.mkdir_p(Path.dirname(full_path))
+        :ok = File.write(full_path, serialize_post_file(post, published_at))
+
+        post
+        |> Post.changeset(%{
+          status: :published,
+          published_at: published_at,
+          file_path: relative_path,
+          content: nil,
+          updated_at: System.system_time(:second)
+        })
+        |> Repo.update()
+    end
+  end
+
   defp normalize_updates(attrs, _post) do
     %{}
     |> maybe_put(:title, normalize_optional_title(attr(attrs, :title), attrs))
@@ -162,11 +189,58 @@ defmodule BDS.Posts do
   defp default_slug_source(""), do: "untitled"
   defp default_slug_source(title), do: title
 
+  defp build_post_relative_path(slug, created_at) do
+    datetime = DateTime.from_unix!(created_at)
+    year = Integer.to_string(datetime.year)
+    month = datetime.month |> Integer.to_string() |> String.pad_leading(2, "0")
+    Path.join(["posts", year, month, "#{slug}.md"])
+  end
+
+  defp serialize_post_file(post, published_at) do
+    frontmatter_lines = [
+      "id: #{post.id}",
+      "title: #{post.title}",
+      "slug: #{post.slug}",
+      maybe_line("excerpt", post.excerpt),
+      "status: published",
+      maybe_line("author", post.author),
+      maybe_line("language", post.language),
+      maybe_boolean_line("do_not_translate", post.do_not_translate),
+      maybe_line("template_slug", post.template_slug),
+      "created_at: #{post.created_at}",
+      "updated_at: #{post.updated_at}",
+      "published_at: #{published_at}",
+      list_lines("tags", post.tags),
+      list_lines("categories", post.categories)
+    ]
+    |> List.flatten()
+    |> Enum.reject(&is_nil/1)
+    |> Enum.join("\n")
+
+    ["---", frontmatter_lines, "---", post.content || "", ""]
+    |> Enum.join("\n")
+  end
+
+  defp list_lines(label, items) do
+    ["#{label}:" | Enum.map(items || [], &"  - #{&1}")]
+  end
+
+  defp maybe_line(_label, nil), do: nil
+  defp maybe_line(_label, ""), do: nil
+  defp maybe_line(label, value), do: "#{label}: #{value}"
+
+  defp maybe_boolean_line(_label, false), do: nil
+  defp maybe_boolean_line(label, true), do: "#{label}: true"
+
   defp has_attr?(attrs, key) do
     Map.has_key?(attrs, key) or Map.has_key?(attrs, Atom.to_string(key))
   end
 
   defp attr(attrs, key) do
-    Map.get(attrs, key) || Map.get(attrs, Atom.to_string(key))
+    cond do
+      Map.has_key?(attrs, key) -> Map.get(attrs, key)
+      Map.has_key?(attrs, Atom.to_string(key)) -> Map.get(attrs, Atom.to_string(key))
+      true -> nil
+    end
   end
 end
diff --git a/lib/bds/projects.ex b/lib/bds/projects.ex
index 9d3efac..eab765a 100644
--- a/lib/bds/projects.ex
+++ b/lib/bds/projects.ex
@@ -8,12 +8,44 @@ defmodule BDS.Projects do
   alias BDS.Repo
   alias BDS.Slug
 
+  @default_project_id "default"
+  @default_project_name "My Blog"
+
   def list_projects do
     Repo.all(from project in Project, order_by: [asc: project.created_at])
   end
 
+  def get_project(id), do: Repo.get(Project, id)
   def get_project!(id), do: Repo.get!(Project, id)
 
+  def ensure_default_project do
+    case Repo.get(Project, @default_project_id) do
+      %Project{} = project ->
+        {:ok, project}
+
+      nil ->
+        now = System.system_time(:second)
+        is_active = not Repo.exists?(from project in Project, where: project.is_active == true)
+
+        %Project{}
+        |> Project.changeset(%{
+          id: @default_project_id,
+          name: @default_project_name,
+          slug: unique_slug(Slug.slugify(@default_project_name)),
+          description: nil,
+          data_path: nil,
+          created_at: now,
+          updated_at: now,
+          is_active: is_active
+        })
+        |> Repo.insert()
+    end
+  end
+
+  def project_data_dir(%Project{} = project) do
+    project.data_path || Path.expand("../../priv/data/projects/#{project.id}", __DIR__)
+  end
+
   def create_project(attrs) do
     now = System.system_time(:second)
     name = attr(attrs, :name) || ""
@@ -79,6 +111,10 @@ defmodule BDS.Projects do
   end
 
   defp attr(attrs, key) do
-    Map.get(attrs, key) || Map.get(attrs, Atom.to_string(key))
+    cond do
+      Map.has_key?(attrs, key) -> Map.get(attrs, key)
+      Map.has_key?(attrs, Atom.to_string(key)) -> Map.get(attrs, Atom.to_string(key))
+      true -> nil
+    end
   end
 end
diff --git a/lib/bds/scripts.ex b/lib/bds/scripts.ex
new file mode 100644
index 0000000..f234109
--- /dev/null
+++ b/lib/bds/scripts.ex
@@ -0,0 +1,69 @@
+defmodule BDS.Scripts do
+  @moduledoc false
+
+  import Ecto.Query
+
+  alias BDS.Repo
+  alias BDS.Scripts.Script
+  alias BDS.Slug
+
+  def create_script(attrs) do
+    now = System.system_time(:second)
+    project_id = attr(attrs, :project_id)
+    title = attr(attrs, :title) || ""
+    kind = attr(attrs, :kind)
+
+    %Script{}
+    |> Script.changeset(%{
+      id: Ecto.UUID.generate(),
+      project_id: project_id,
+      slug: unique_slug(project_id, Slug.slugify(title), "script"),
+      title: title,
+      kind: kind,
+      entrypoint: attr(attrs, :entrypoint) || default_entrypoint(kind),
+      enabled: true,
+      version: 1,
+      file_path: "",
+      status: :draft,
+      content: attr(attrs, :content),
+      created_at: now,
+      updated_at: now
+    })
+    |> Repo.insert()
+  end
+
+  defp default_entrypoint(:macro), do: "render"
+  defp default_entrypoint(_kind), do: "main"
+
+  defp unique_slug(project_id, base_slug, fallback) do
+    normalized = if base_slug in [nil, ""], do: fallback, else: base_slug
+
+    if slug_available?(project_id, normalized) do
+      normalized
+    else
+      find_unique_slug(project_id, normalized, 2)
+    end
+  end
+
+  defp find_unique_slug(project_id, base_slug, suffix) do
+    candidate = "#{base_slug}-#{suffix}"
+
+    if slug_available?(project_id, candidate) do
+      candidate
+    else
+      find_unique_slug(project_id, base_slug, suffix + 1)
+    end
+  end
+
+  defp slug_available?(project_id, slug) do
+    not Repo.exists?(from script in Script, where: script.project_id == ^project_id and script.slug == ^slug)
+  end
+
+  defp attr(attrs, key) do
+    cond do
+      Map.has_key?(attrs, key) -> Map.get(attrs, key)
+      Map.has_key?(attrs, Atom.to_string(key)) -> Map.get(attrs, Atom.to_string(key))
+      true -> nil
+    end
+  end
+end
diff --git a/lib/bds/scripts/script.ex b/lib/bds/scripts/script.ex
new file mode 100644
index 0000000..078442f
--- /dev/null
+++ b/lib/bds/scripts/script.ex
@@ -0,0 +1,35 @@
+defmodule BDS.Scripts.Script do
+  @moduledoc false
+
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  @primary_key {:id, :string, autogenerate: false}
+  @foreign_key_type :string
+
+  schema "scripts" do
+    field :slug, :string
+    field :title, :string
+    field :kind, Ecto.Enum, values: [:macro, :utility, :transform]
+    field :entrypoint, :string
+    field :enabled, :boolean, default: true
+    field :version, :integer, default: 1
+    field :file_path, :string, default: ""
+    field :status, Ecto.Enum, values: [:draft, :published], default: :draft
+    field :content, :string
+    field :created_at, :integer
+    field :updated_at, :integer
+
+    belongs_to :project, BDS.Projects.Project, type: :string
+  end
+
+  def changeset(script, attrs) do
+    script
+    |> cast(attrs, [:id, :project_id, :slug, :title, :kind, :entrypoint, :enabled, :version, :file_path, :status, :content, :created_at, :updated_at],
+      empty_values: [nil]
+    )
+    |> validate_required([:id, :project_id, :slug, :title, :kind, :entrypoint, :enabled, :version, :status, :created_at, :updated_at])
+    |> assoc_constraint(:project)
+    |> unique_constraint(:slug, name: :scripts_project_slug_idx)
+  end
+end
diff --git a/lib/bds/tags.ex b/lib/bds/tags.ex
new file mode 100644
index 0000000..0f2f6b0
--- /dev/null
+++ b/lib/bds/tags.ex
@@ -0,0 +1,85 @@
+defmodule BDS.Tags do
+  @moduledoc false
+
+  import Ecto.Query
+
+  alias BDS.Projects
+  alias BDS.Repo
+  alias BDS.Tags.Tag
+
+  def create_tag(attrs) do
+    project_id = attr(attrs, :project_id)
+    name = attr(attrs, :name) |> to_string() |> String.trim()
+
+    with :ok <- validate_unique_name(project_id, name) do
+      now = System.system_time(:second)
+
+      %Tag{}
+      |> Tag.changeset(%{
+        id: Ecto.UUID.generate(),
+        project_id: project_id,
+        name: name,
+        color: attr(attrs, :color),
+        post_template_slug: attr(attrs, :post_template_slug),
+        created_at: now,
+        updated_at: now
+      })
+      |> Repo.insert()
+      |> case do
+        {:ok, tag} ->
+          write_tags_json(project_id)
+          {:ok, tag}
+
+        error ->
+          error
+      end
+    end
+  end
+
+  def list_tags(project_id) do
+    Repo.all(from tag in Tag, where: tag.project_id == ^project_id, order_by: [asc: tag.name])
+  end
+
+  defp write_tags_json(project_id) do
+    project = Projects.get_project!(project_id)
+    path = Path.join([Projects.project_data_dir(project), "meta", "tags.json"])
+    :ok = File.mkdir_p(Path.dirname(path))
+
+    payload = %{
+      "tags" =>
+        project_id
+        |> list_tags()
+        |> Enum.sort_by(&String.downcase(&1.name))
+        |> Enum.map(fn tag ->
+          %{"name" => tag.name}
+          |> maybe_put("color", tag.color)
+          |> maybe_put("post_template_slug", tag.post_template_slug)
+        end)
+    }
+
+    File.write!(path, Jason.encode!(payload))
+  end
+
+  defp validate_unique_name(project_id, name) do
+    if Repo.exists?(from tag in Tag, where: tag.project_id == ^project_id and fragment("lower(?)", tag.name) == ^String.downcase(name)) do
+      {:error,
+       %Tag{}
+       |> Tag.changeset(%{project_id: project_id, name: name, id: Ecto.UUID.generate(), created_at: 0, updated_at: 0})
+       |> Ecto.Changeset.add_error(:name, "has already been taken")}
+    else
+      :ok
+    end
+  end
+
+  defp maybe_put(map, _key, nil), do: map
+  defp maybe_put(map, _key, ""), do: map
+  defp maybe_put(map, key, value), do: Map.put(map, key, value)
+
+  defp attr(attrs, key) do
+    cond do
+      Map.has_key?(attrs, key) -> Map.get(attrs, key)
+      Map.has_key?(attrs, Atom.to_string(key)) -> Map.get(attrs, Atom.to_string(key))
+      true -> nil
+    end
+  end
+end
diff --git a/lib/bds/tags/tag.ex b/lib/bds/tags/tag.ex
new file mode 100644
index 0000000..a4b46bf
--- /dev/null
+++ b/lib/bds/tags/tag.ex
@@ -0,0 +1,28 @@
+defmodule BDS.Tags.Tag do
+  @moduledoc false
+
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  @primary_key {:id, :string, autogenerate: false}
+  @foreign_key_type :string
+
+  schema "tags" do
+    field :name, :string
+    field :color, :string
+    field :post_template_slug, :string
+    field :created_at, :integer
+    field :updated_at, :integer
+
+    belongs_to :project, BDS.Projects.Project, type: :string
+  end
+
+  def changeset(tag, attrs) do
+    tag
+    |> cast(attrs, [:id, :project_id, :name, :color, :post_template_slug, :created_at, :updated_at],
+      empty_values: [nil]
+    )
+    |> validate_required([:id, :project_id, :name, :created_at, :updated_at])
+    |> assoc_constraint(:project)
+  end
+end
diff --git a/lib/bds/templates.ex b/lib/bds/templates.ex
new file mode 100644
index 0000000..c9b1f77
--- /dev/null
+++ b/lib/bds/templates.ex
@@ -0,0 +1,64 @@
+defmodule BDS.Templates do
+  @moduledoc false
+
+  import Ecto.Query
+
+  alias BDS.Repo
+  alias BDS.Slug
+  alias BDS.Templates.Template
+
+  def create_template(attrs) do
+    now = System.system_time(:second)
+    project_id = attr(attrs, :project_id)
+    title = attr(attrs, :title) || ""
+
+    %Template{}
+    |> Template.changeset(%{
+      id: Ecto.UUID.generate(),
+      project_id: project_id,
+      slug: unique_slug(project_id, Slug.slugify(title), "template"),
+      title: title,
+      kind: attr(attrs, :kind),
+      enabled: true,
+      version: 1,
+      file_path: "",
+      status: :draft,
+      content: attr(attrs, :content),
+      created_at: now,
+      updated_at: now
+    })
+    |> Repo.insert()
+  end
+
+  defp unique_slug(project_id, base_slug, fallback) do
+    normalized = if base_slug in [nil, ""], do: fallback, else: base_slug
+
+    if slug_available?(project_id, normalized) do
+      normalized
+    else
+      find_unique_slug(project_id, normalized, 2)
+    end
+  end
+
+  defp find_unique_slug(project_id, base_slug, suffix) do
+    candidate = "#{base_slug}-#{suffix}"
+
+    if slug_available?(project_id, candidate) do
+      candidate
+    else
+      find_unique_slug(project_id, base_slug, suffix + 1)
+    end
+  end
+
+  defp slug_available?(project_id, slug) do
+    not Repo.exists?(from template in Template, where: template.project_id == ^project_id and template.slug == ^slug)
+  end
+
+  defp attr(attrs, key) do
+    cond do
+      Map.has_key?(attrs, key) -> Map.get(attrs, key)
+      Map.has_key?(attrs, Atom.to_string(key)) -> Map.get(attrs, Atom.to_string(key))
+      true -> nil
+    end
+  end
+end
diff --git a/lib/bds/templates/template.ex b/lib/bds/templates/template.ex
new file mode 100644
index 0000000..c220b6b
--- /dev/null
+++ b/lib/bds/templates/template.ex
@@ -0,0 +1,34 @@
+defmodule BDS.Templates.Template do
+  @moduledoc false
+
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  @primary_key {:id, :string, autogenerate: false}
+  @foreign_key_type :string
+
+  schema "templates" do
+    field :slug, :string
+    field :title, :string
+    field :kind, Ecto.Enum, values: [:post, :list, :not_found, :partial]
+    field :enabled, :boolean, default: true
+    field :version, :integer, default: 1
+    field :file_path, :string, default: ""
+    field :status, Ecto.Enum, values: [:draft, :published], default: :draft
+    field :content, :string
+    field :created_at, :integer
+    field :updated_at, :integer
+
+    belongs_to :project, BDS.Projects.Project, type: :string
+  end
+
+  def changeset(template, attrs) do
+    template
+    |> cast(attrs, [:id, :project_id, :slug, :title, :kind, :enabled, :version, :file_path, :status, :content, :created_at, :updated_at],
+      empty_values: [nil]
+    )
+    |> validate_required([:id, :project_id, :slug, :title, :kind, :enabled, :version, :status, :created_at, :updated_at])
+    |> assoc_constraint(:project)
+    |> unique_constraint(:slug, name: :templates_project_slug_idx)
+  end
+end
diff --git a/test/bds/posts_test.exs b/test/bds/posts_test.exs
index 44a9391..6e8d792 100644
--- a/test/bds/posts_test.exs
+++ b/test/bds/posts_test.exs
@@ -87,6 +87,53 @@ defmodule BDS.PostsTest do
     assert reopened.updated_at >= published.updated_at
   end
 
+  test "publish_post writes frontmatter to the project data directory and clears draft content" do
+    temp_dir = Path.join(System.tmp_dir!(), "bds-post-publish-#{System.unique_integer([:positive])}")
+    File.mkdir_p!(temp_dir)
+    on_exit(fn -> File.rm_rf(temp_dir) end)
+
+    assert {:ok, project} = BDS.Projects.create_project(%{name: "Filesystem", data_path: temp_dir})
+
+    assert {:ok, post} =
+             BDS.Posts.create_post(%{
+               project_id: project.id,
+               title: "Published Post",
+               excerpt: "Summary",
+               content: "Hello from markdown",
+               tags: ["alpha"],
+               categories: ["notes"],
+               author: "Writer",
+               language: "en",
+               template_slug: "article"
+             })
+
+    assert {:ok, post} = BDS.Posts.update_post(post.id, %{do_not_translate: true})
+    assert {:ok, published} = BDS.Posts.publish_post(post.id)
+
+    assert published.status == :published
+    assert published.content == nil
+    assert published.file_path =~ ~r/^posts\/\d{4}\/\d{2}\/published-post\.md$/
+    assert is_integer(published.published_at)
+
+    full_path = Path.join(temp_dir, published.file_path)
+    assert File.exists?(full_path)
+
+    file_contents = File.read!(full_path)
+
+    assert file_contents =~ "---\nid: #{published.id}\n"
+    assert file_contents =~ "title: Published Post\n"
+    assert file_contents =~ "slug: published-post\n"
+    assert file_contents =~ "status: published\n"
+    assert file_contents =~ "excerpt: Summary\n"
+    assert file_contents =~ "author: Writer\n"
+    assert file_contents =~ "language: en\n"
+    assert file_contents =~ "do_not_translate: true\n"
+    assert file_contents =~ "template_slug: article\n"
+    assert file_contents =~ "tags:\n  - alpha\n"
+    assert file_contents =~ "categories:\n  - notes\n"
+    assert file_contents =~ "\n---\nHello from markdown\n"
+  end
+
   defp errors_on(changeset) do
     Ecto.Changeset.traverse_errors(changeset, fn {message, opts} ->
       Regex.replace(~r"%{(\w+)}", message, fn _, key ->
diff --git a/test/bds/projects_test.exs b/test/bds/projects_test.exs
index 48b26d9..dc11336 100644
--- a/test/bds/projects_test.exs
+++ b/test/bds/projects_test.exs
@@ -1,6 +1,9 @@
 defmodule BDS.ProjectsTest do
   use ExUnit.Case, async: false
 
+  alias BDS.Projects.Project
+  alias BDS.Repo
+
   setup do
     :ok = Ecto.Adapters.SQL.Sandbox.checkout(BDS.Repo)
   end
@@ -37,4 +40,18 @@ defmodule BDS.ProjectsTest do
     assert refetched_second.is_active == true
     assert Enum.count(BDS.Projects.list_projects(), & &1.is_active) == 1
   end
+
+  test "ensure_default_project creates the default project once and keeps it active" do
+    Repo.delete_all(Project)
+
+    assert {:ok, default_project} = BDS.Projects.ensure_default_project()
+    assert default_project.id == "default"
+    assert default_project.name == "My Blog"
+    assert default_project.slug == "my-blog"
+    assert default_project.is_active == true
+
+    assert {:ok, same_project} = BDS.Projects.ensure_default_project()
+    assert same_project.id == default_project.id
+    assert Repo.aggregate(Project, :count, :id) == 1
+  end
 end
diff --git a/test/bds/scripts_test.exs b/test/bds/scripts_test.exs
new file mode 100644
index 0000000..a228e50
--- /dev/null
+++ b/test/bds/scripts_test.exs
@@ -0,0 +1,37 @@
+defmodule BDS.ScriptsTest do
+  use ExUnit.Case, async: false
+
+  setup do
+    :ok = Ecto.Adapters.SQL.Sandbox.checkout(BDS.Repo)
+    {:ok, project} = BDS.Projects.create_project(%{name: "Scripts"})
+    %{project: project}
+  end
+
+  test "create_script creates draft scripts with default entrypoints by kind", %{project: project} do
+    assert {:ok, utility} =
+             BDS.Scripts.create_script(%{
+               project_id: project.id,
+               title: "Importer",
+               kind: :utility,
+               content: "function main() end"
+             })
+
+    assert utility.slug == "importer"
+    assert utility.entrypoint == "main"
+    assert utility.status == :draft
+    assert utility.enabled == true
+    assert utility.version == 1
+    assert utility.file_path == ""
+
+    assert {:ok, macro_script} =
+             BDS.Scripts.create_script(%{
+               project_id: project.id,
+               title: "Render Card",
+               kind: :macro,
+               content: "function render() end"
+             })
+
+    assert macro_script.entrypoint == "render"
+    assert macro_script.slug == "render-card"
+  end
+end
diff --git a/test/bds/tags_test.exs b/test/bds/tags_test.exs
new file mode 100644
index 0000000..142d9bc
--- /dev/null
+++ b/test/bds/tags_test.exs
@@ -0,0 +1,42 @@
+defmodule BDS.TagsTest do
+  use ExUnit.Case, async: false
+
+  setup do
+    :ok = Ecto.Adapters.SQL.Sandbox.checkout(BDS.Repo)
+    temp_dir = Path.join(System.tmp_dir!(), "bds-tags-#{System.unique_integer([:positive])}")
+    File.mkdir_p!(temp_dir)
+    on_exit(fn -> File.rm_rf(temp_dir) end)
+
+    {:ok, project} = BDS.Projects.create_project(%{name: "Tags", data_path: temp_dir})
+    %{project: project, temp_dir: temp_dir}
+  end
+
+  test "create_tag persists the row and rewrites meta/tags.json sorted by name", %{project: project, temp_dir: temp_dir} do
+    assert {:ok, zebra} = BDS.Tags.create_tag(%{project_id: project.id, name: "Zebra", color: "#000000"})
+    assert {:ok, alpha} = BDS.Tags.create_tag(%{project_id: project.id, name: "Alpha"})
+
+    assert zebra.name == "Zebra"
+    assert zebra.color == "#000000"
+    assert alpha.color == nil
+
+    tags_path = Path.join([temp_dir, "meta", "tags.json"])
+    assert File.exists?(tags_path)
+
+    assert %{"tags" => [%{"name" => "Alpha"}, %{"color" => "#000000", "name" => "Zebra"}]} =
+             Jason.decode!(File.read!(tags_path))
+  end
+
+  test "create_tag rejects case-insensitive duplicates per project", %{project: project} do
+    assert {:ok, _tag} = BDS.Tags.create_tag(%{project_id: project.id, name: "Elixir"})
+    assert {:error, changeset} = BDS.Tags.create_tag(%{project_id: project.id, name: "elixir"})
+    assert "has already been taken" in errors_on(changeset).name
+  end
+
+  defp errors_on(changeset) do
+    Ecto.Changeset.traverse_errors(changeset, fn {message, opts} ->
+      Regex.replace(~r"%{(\w+)}", message, fn _, key ->
+        opts |> Keyword.get(String.to_existing_atom(key), key) |> to_string()
+      end)
+    end)
+  end
+end
diff --git a/test/bds/templates_test.exs b/test/bds/templates_test.exs
new file mode 100644
index 0000000..0b826e3
--- /dev/null
+++ b/test/bds/templates_test.exs
@@ -0,0 +1,31 @@
+defmodule BDS.TemplatesTest do
+  use ExUnit.Case, async: false
+
+  setup do
+    :ok = Ecto.Adapters.SQL.Sandbox.checkout(BDS.Repo)
+    {:ok, project} = BDS.Projects.create_project(%{name: "Templates"})
+    %{project: project}
+  end
+
+  test "create_template creates a draft template with slug deduplication", %{project: project} do
+    assert {:ok, template} =
+             BDS.Templates.create_template(%{
+               project_id: project.id,
+               title: "Article View",
+               kind: :post,
+               content: "<article>{{ content }}</article>"
+             })
+
+    assert template.slug == "article-view"
+    assert template.status == :draft
+    assert template.enabled == true
+    assert template.version == 1
+    assert template.file_path == ""
+    assert template.content == "<article>{{ content }}</article>"
+
+    assert {:ok, duplicate} =
+             BDS.Templates.create_template(%{project_id: project.id, title: "Article View", kind: :post, content: "x"})
+
+    assert duplicate.slug == "article-view-2"
+  end
+end