feat: port basic functionality to elixir

priv/repo/migrations/20250913202135_create_categories.exs

@@ -0,0 +1,16 @@
+defmodule ComponentsElixir.Repo.Migrations.CreateCategories do
+  use Ecto.Migration
+
+  def change do
+    create table(:categories) do
+      add :name, :string, null: false
+      add :description, :text
+      add :parent_id, references(:categories, on_delete: :delete_all)
+
+      timestamps()
+    end
+
+    create index(:categories, [:parent_id])
+    create unique_index(:categories, [:name, :parent_id])
+  end
+end

priv/repo/migrations/20250913202150_create_components.exs

@@ -0,0 +1,25 @@
+defmodule ComponentsElixir.Repo.Migrations.CreateComponents do
+  use Ecto.Migration
+
+  def change do
+    create table(:components) do
+      add :name, :string, null: false
+      add :description, :text
+      add :keywords, :string
+      add :position, :string
+      add :count, :integer, default: 0
+      add :datasheet_url, :string
+      add :image_filename, :string
+      add :category_id, references(:categories, on_delete: :restrict), null: false
+
+      timestamps()
+    end
+
+    create index(:components, [:category_id])
+    create index(:components, [:name])
+
+    # Full-text search indexes for PostgreSQL
+    execute "CREATE INDEX components_search_idx ON components USING gin(to_tsvector('english', name || ' ' || coalesce(description, '') || ' ' || coalesce(keywords, '')))",
+            "DROP INDEX components_search_idx"
+  end
+end

priv/repo/seeds.exs

@@ -9,3 +9,136 @@
 #
 # We recommend using the bang functions (`insert!`, `update!`
 # and so on) as they will fail if something goes wrong.
+
+alias ComponentsElixir.{Repo, Inventory}
+alias ComponentsElixir.Inventory.{Category, Component}
+
+# Clear existing data
+Repo.delete_all(Component)
+Repo.delete_all(Category)
+
+# Create categories
+{:ok, resistors} = Inventory.create_category(%{name: "Resistors", description: "Various types of resistors"})
+{:ok, capacitors} = Inventory.create_category(%{name: "Capacitors", description: "Electrolytic, ceramic, and film capacitors"})
+{:ok, semiconductors} = Inventory.create_category(%{name: "Semiconductors", description: "ICs, transistors, diodes"})
+{:ok, connectors} = Inventory.create_category(%{name: "Connectors", description: "Headers, terminals, plugs"})
+
+# Create subcategories
+{:ok, _through_hole_resistors} = Inventory.create_category(%{
+  name: "Through-hole",
+  description: "Traditional leaded resistors",
+  parent_id: resistors.id
+})
+
+{:ok, _smd_resistors} = Inventory.create_category(%{
+  name: "SMD/SMT",
+  description: "Surface mount resistors",
+  parent_id: resistors.id
+})
+
+{:ok, _ceramic_caps} = Inventory.create_category(%{
+  name: "Ceramic",
+  description: "Ceramic disc and multilayer capacitors",
+  parent_id: capacitors.id
+})
+
+{:ok, _electrolytic_caps} = Inventory.create_category(%{
+  name: "Electrolytic",
+  description: "Polarized electrolytic capacitors",
+  parent_id: capacitors.id
+})
+
+# Create sample components
+sample_components = [
+  %{
+    name: "1kΩ Resistor (1/4W)",
+    description: "Carbon film resistor, 5% tolerance",
+    keywords: "resistor carbon film 1k ohm",
+    position: "A1-1",
+    count: 150,
+    category_id: resistors.id
+  },
+  %{
+    name: "10kΩ Resistor (1/4W)",
+    description: "Carbon film resistor, 5% tolerance",
+    keywords: "resistor carbon film 10k ohm",
+    position: "A1-2",
+    count: 200,
+    category_id: resistors.id
+  },
+  %{
+    name: "100μF Electrolytic Capacitor",
+    description: "25V electrolytic capacitor, radial leads",
+    keywords: "capacitor electrolytic 100uf microfarad",
+    position: "B2-1",
+    count: 50,
+    category_id: capacitors.id
+  },
+  %{
+    name: "0.1μF Ceramic Capacitor",
+    description: "50V ceramic disc capacitor",
+    keywords: "capacitor ceramic 100nf nanofarad disc",
+    position: "B2-2",
+    count: 300,
+    category_id: capacitors.id
+  },
+  %{
+    name: "ATmega328P-PU",
+    description: "8-bit AVR microcontroller, DIP-28 package",
+    keywords: "microcontroller avr atmega328 arduino",
+    position: "C3-1",
+    count: 10,
+    datasheet_url: "https://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-7810-Automotive-Microcontrollers-ATmega328P_Datasheet.pdf",
+    category_id: semiconductors.id
+  },
+  %{
+    name: "LM358 Op-Amp",
+    description: "Dual operational amplifier, DIP-8 package",
+    keywords: "opamp operational amplifier lm358 dual",
+    position: "C3-2",
+    count: 25,
+    category_id: semiconductors.id
+  },
+  %{
+    name: "2N2222 NPN Transistor",
+    description: "General purpose NPN transistor, TO-92 package",
+    keywords: "transistor npn 2n2222 to92",
+    position: "C3-3",
+    count: 40,
+    category_id: semiconductors.id
+  },
+  %{
+    name: "2.54mm Pin Headers",
+    description: "Male pin headers, 40 pins, break-away",
+    keywords: "header pins male 2.54mm breakaway",
+    position: "D4-1",
+    count: 20,
+    category_id: connectors.id
+  },
+  %{
+    name: "JST-XH 2-pin Connector",
+    description: "2-pin JST-XH connector with housing",
+    keywords: "jst xh connector 2pin housing",
+    position: "D4-2",
+    count: 30,
+    category_id: connectors.id
+  },
+  %{
+    name: "470Ω Resistor (1/4W)",
+    description: "Carbon film resistor, 5% tolerance, commonly used for LEDs",
+    keywords: "resistor carbon film 470 ohm led current limiting",
+    position: "A1-3",
+    count: 100,
+    category_id: resistors.id
+  }
+]
+
+Enum.each(sample_components, fn component_attrs ->
+  {:ok, _component} = Inventory.create_component(component_attrs)
+end)
+
+IO.puts("Seeded database with categories and sample components!")
+IO.puts("Categories: #{length(Inventory.list_categories())}")
+IO.puts("Components: #{length(Inventory.list_components())}")
+IO.puts("")
+IO.puts("Login with password: changeme (or set AUTH_PASSWORD environment variable)")