switch mockup generator to UK print providers and add --replace flag

- Prefer Print Clever (72) for canvas, Monster Digital (29) for
  apparel and mugs where available, fall back to default providers
- Rename Art Print products to Canvas (new Satin Canvas blueprint)
- Add Canvas Prints category in Printify tag extraction
- Add --replace/-r flag to purge existing Printify products before
  generating (with interactive confirmation)
- Add purge_all_products/1 to generator module
- Remove old art print mockups, add new canvas + extra provider mockups

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

lib/mix/tasks/generate_mockups.ex

@@ -16,6 +16,9 @@ defmodule Mix.Tasks.GenerateMockups do
       # Generate mockups (keeps products in Printify)
       mix generate_mockups
 
+      # Delete existing products first, then generate fresh ones
+      mix generate_mockups --replace
+
       # Generate mockups and delete products afterwards
       mix generate_mockups --cleanup
 
@@ -45,12 +48,14 @@ defmodule Mix.Tasks.GenerateMockups do
       OptionParser.parse(args,
         switches: [
           cleanup: :boolean,
+          replace: :boolean,
           search: :string,
           list_blueprints: :boolean,
           help: :boolean
         ],
         aliases: [
           c: :cleanup,
+          r: :replace,
           s: :search,
           l: :list_blueprints,
           h: :help
@@ -84,6 +89,7 @@ defmodule Mix.Tasks.GenerateMockups do
       mix generate_mockups [options]
 
     Options:
+      --replace, -r       Delete ALL existing products from Printify before generating (with confirmation)
       --cleanup, -c       Delete created products from Printify after downloading mockups
       --search, -s TERM   Search for blueprints by name
       --list-blueprints   List all available blueprint IDs and names
@@ -149,12 +155,14 @@ defmodule Mix.Tasks.GenerateMockups do
 
   defp generate_mockups(opts) do
     cleanup = Keyword.get(opts, :cleanup, false)
+    replace = Keyword.get(opts, :replace, false)
 
     Mix.shell().info("""
 
     ╔═══════════════════════════════════════════╗
     ║     Printify Mockup Generator             ║
     ╠═══════════════════════════════════════════╣
+    ║  Replace mode: #{if replace, do: "ON ", else: "OFF"}                        ║
     ║  Cleanup mode: #{if cleanup, do: "ON ", else: "OFF"}                        ║
     ╚═══════════════════════════════════════════╝
 
@@ -177,6 +185,8 @@ defmodule Mix.Tasks.GenerateMockups do
         """)
 
       _token ->
+        if replace, do: purge_existing_products()
+
         results = MockupGenerator.generate_all(cleanup: cleanup)
 
         # Summary
@@ -200,4 +210,27 @@ defmodule Mix.Tasks.GenerateMockups do
         end
     end
   end
+
+  defp purge_existing_products do
+    alias SimpleshopTheme.Clients.Printify, as: Client
+
+    Mix.shell().info("Fetching existing products...")
+
+    {:ok, shop_id} = Client.get_shop_id()
+    {:ok, %{"data" => products}} = Client.list_products(shop_id)
+    count = length(products)
+
+    if count == 0 do
+      Mix.shell().info("No existing products to delete.\n")
+    else
+      Mix.shell().info("Found #{count} existing products in Printify.")
+
+      if Mix.shell().yes?("Delete all #{count} products before generating new ones?") do
+        deleted = MockupGenerator.purge_all_products(shop_id)
+        Mix.shell().info("Deleted #{deleted} products.\n")
+      else
+        Mix.shell().info("Skipping purge.\n")
+      end
+    end
+  end
 end

lib/simpleshop_theme/mockups/generator.ex

@@ -21,43 +21,43 @@ defmodule SimpleshopTheme.Mockups.Generator do
   def product_definitions do
     [
       %{
-        name: "Mountain Sunrise Art Print",
-        slug: "mountain-sunrise-print",
-        category: "Art Prints",
+        name: "Mountain Sunrise Canvas",
+        slug: "mountain-sunrise-canvas",
+        category: "Canvas Prints",
         artwork_url: unsplash_download_url("UweNcthlmDc"),
-        product_type: :poster,
+        product_type: :canvas,
         price: 2400
       },
       %{
-        name: "Ocean Waves Art Print",
-        slug: "ocean-waves-print",
-        category: "Art Prints",
+        name: "Ocean Waves Canvas",
+        slug: "ocean-waves-canvas",
+        category: "Canvas Prints",
         artwork_url: unsplash_download_url("XRhUTUVuXAE"),
-        product_type: :poster,
+        product_type: :canvas,
         price: 2400
       },
       %{
-        name: "Wildflower Meadow Art Print",
-        slug: "wildflower-meadow-print",
-        category: "Art Prints",
+        name: "Wildflower Meadow Canvas",
+        slug: "wildflower-meadow-canvas",
+        category: "Canvas Prints",
         artwork_url: unsplash_download_url("QvjL4y7SF9k"),
-        product_type: :poster,
+        product_type: :canvas,
         price: 2400
       },
       %{
-        name: "Geometric Abstract Art Print",
-        slug: "geometric-abstract-print",
-        category: "Art Prints",
+        name: "Geometric Abstract Canvas",
+        slug: "geometric-abstract-canvas",
+        category: "Canvas Prints",
         artwork_url: unsplash_download_url("-6GvTDpkkPU"),
-        product_type: :poster,
+        product_type: :canvas,
         price: 2800
       },
       %{
-        name: "Botanical Illustration Print",
-        slug: "botanical-illustration-print",
-        category: "Art Prints",
+        name: "Botanical Illustration Canvas",
+        slug: "botanical-illustration-canvas",
+        category: "Canvas Prints",
         artwork_url: unsplash_download_url("FNtNIDQWUZY"),
-        product_type: :poster,
+        product_type: :canvas,
         price: 2400
       },
       %{
@@ -157,25 +157,20 @@ defmodule SimpleshopTheme.Mockups.Generator do
   """
   def blueprint_config do
     %{
-      # Search terms matched to Printify's actual blueprint titles (partial match)
-      poster: %{blueprint_id: nil, print_provider_id: nil, search_term: "Matte Posters"},
-      tshirt: %{blueprint_id: nil, print_provider_id: nil, search_term: "Softstyle T-Shirt"},
-      hoodie: %{blueprint_id: nil, print_provider_id: nil, search_term: "Pullover Hoodie"},
-      tote: %{blueprint_id: nil, print_provider_id: nil, search_term: "Cotton Tote Bag"},
-      mug: %{blueprint_id: nil, print_provider_id: nil, search_term: "Mug 11oz"},
-      cushion: %{
-        blueprint_id: nil,
-        print_provider_id: nil,
-        search_term: "Spun Polyester Square Pillow"
-      },
-      blanket: %{blueprint_id: nil, print_provider_id: nil, search_term: "Sherpa Fleece Blanket"},
-      notebook: %{
-        blueprint_id: nil,
-        print_provider_id: nil,
-        search_term: "Hardcover Journal Matte"
-      },
-      phone_case: %{blueprint_id: nil, print_provider_id: nil, search_term: "Tough Phone Cases"},
-      laptop_sleeve: %{blueprint_id: nil, print_provider_id: nil, search_term: "Laptop Sleeve"}
+      # Search terms matched to Printify's actual blueprint titles (partial match).
+      # preferred_provider_id selects a UK-based provider where available:
+      #   29 = Monster Digital (UK) — apparel, mugs
+      #   72 = Print Clever (UK) — canvas prints
+      canvas: %{search_term: "Satin Canvas, Stretched", preferred_provider_id: 72},
+      tshirt: %{search_term: "Softstyle T-Shirt", preferred_provider_id: 29},
+      hoodie: %{search_term: "Heavy Blend™ Hooded Sweatshirt", preferred_provider_id: 29},
+      tote: %{search_term: "Cotton Tote Bag", preferred_provider_id: nil},
+      mug: %{search_term: "Ceramic Mug", preferred_provider_id: 29},
+      cushion: %{search_term: "Spun Polyester Square Pillow", preferred_provider_id: nil},
+      blanket: %{search_term: "Sherpa Fleece Blanket", preferred_provider_id: nil},
+      notebook: %{search_term: "Hardcover Journal Matte", preferred_provider_id: nil},
+      phone_case: %{search_term: "Tough Phone Cases", preferred_provider_id: nil},
+      laptop_sleeve: %{search_term: "Laptop Sleeve", preferred_provider_id: nil}
     }
   end
 
@@ -210,13 +205,19 @@ defmodule SimpleshopTheme.Mockups.Generator do
 
   @doc """
   Find a suitable print provider for a blueprint.
-  Prefers providers with good ratings and reasonable pricing.
+
+  When `preferred_provider_id` is given, uses that provider if available
+  for the blueprint. Falls back to the first provider otherwise.
   """
-  def find_print_provider(blueprint_id) do
+  def find_print_provider(blueprint_id, preferred_provider_id \\ nil) do
     case Client.get_print_providers(blueprint_id) do
       {:ok, providers} when is_list(providers) and providers != [] ->
-        # Just pick the first provider for simplicity
-        {:ok, hd(providers)}
+        provider =
+          if preferred_provider_id do
+            Enum.find(providers, fn p -> p["id"] == preferred_provider_id end)
+          end
+
+        {:ok, provider || hd(providers)}
 
       {:ok, []} ->
         {:error, :no_providers}
@@ -384,6 +385,26 @@ defmodule SimpleshopTheme.Mockups.Generator do
     end)
   end
 
+  @doc """
+  Deletes all products from the Printify shop.
+  Returns the number of products deleted.
+  """
+  def purge_all_products(shop_id) do
+    case Client.list_products(shop_id) do
+      {:ok, %{"data" => products}} when is_list(products) ->
+        Enum.each(products, fn p ->
+          IO.puts("  Deleting: #{p["title"]} (#{p["id"]})")
+          Client.delete_product(shop_id, p["id"])
+          Process.sleep(200)
+        end)
+
+        length(products)
+
+      _ ->
+        0
+    end
+  end
+
   @doc """
   Generate mockups for all products.
   """
@@ -450,7 +471,7 @@ defmodule SimpleshopTheme.Mockups.Generator do
     with {:ok, blueprint} <- find_blueprint(config.search_term),
          blueprint_id = blueprint["id"],
          _ = IO.puts("  Found blueprint: #{blueprint["title"]} (#{blueprint_id})"),
-         {:ok, provider} <- find_print_provider(blueprint_id),
+         {:ok, provider} <- find_print_provider(blueprint_id, config[:preferred_provider_id]),
          provider_id = provider["id"],
          _ = IO.puts("  Using provider: #{provider["title"]} (#{provider_id})"),
          {:ok, variants} <- get_variant_info(blueprint_id, provider_id),

lib/simpleshop_theme/providers/printify.ex

@@ -418,10 +418,11 @@ defmodule SimpleshopTheme.Providers.Printify do
 
     cond do
       has_tag?(tags, ~w[t-shirt tshirt shirt hoodie sweatshirt apparel clothing]) -> "Apparel"
+      has_tag?(tags, ~w[canvas]) -> "Canvas Prints"
       has_tag?(tags, ~w[mug cup blanket pillow cushion homeware homewares home]) -> "Homewares"
       has_tag?(tags, ~w[notebook journal stationery]) -> "Stationery"
       has_tag?(tags, ~w[phone case bag tote accessories]) -> "Accessories"
-      has_tag?(tags, ~w[art print poster canvas wall]) -> "Art Prints"
+      has_tag?(tags, ~w[art print poster wall]) -> "Art Prints"
       true -> List.first(raw["tags"])
     end
   end