Phoenix 1.8 app that scrapes ammunition retailers (Lucky Gunner, SGAmmo) for price data and displays historical price trends. - Data model: retailers, calibers, products, price snapshots - Scraper infrastructure with Req, Floki, realistic browser headers - Oban-scheduled scrape jobs (every 4h with randomized delays) - LiveView pages: homepage with category cards, caliber detail with price table, Chart.js price history, and price stats banner - 18 seeded calibers across handgun/rifle/rimfire/shotgun categories - 77 tests
96 lines
2.3 KiB
Elixir
96 lines
2.3 KiB
Elixir
defmodule Ammoprices.Fixtures do
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@moduledoc """
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Factory functions for test data.
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"""
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alias Ammoprices.Catalog.Caliber
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alias Ammoprices.Catalog.Product
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alias Ammoprices.Catalog.Retailer
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alias Ammoprices.Prices.PriceSnapshot
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alias Ammoprices.Repo
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def retailer_fixture(attrs \\ %{}) do
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{:ok, retailer} =
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%Retailer{}
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|> Retailer.changeset(
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Map.merge(
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%{
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name: "Test Retailer",
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slug: "test-retailer-#{System.unique_integer([:positive])}",
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base_url: "https://example.com"
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},
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attrs
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)
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)
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|> Repo.insert()
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retailer
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end
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def caliber_fixture(attrs \\ %{}) do
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{:ok, caliber} =
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%Caliber{}
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|> Caliber.changeset(
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Map.merge(
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%{
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name: "9mm Luger",
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slug: "9mm-luger-#{System.unique_integer([:positive])}",
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category: "handgun",
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aliases: ["9mm", "9x19"]
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},
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attrs
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)
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)
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|> Repo.insert()
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caliber
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end
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def product_fixture(attrs \\ %{}) do
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retailer = Map.get_lazy(attrs, :retailer, fn -> retailer_fixture() end)
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caliber = Map.get_lazy(attrs, :caliber, fn -> caliber_fixture() end)
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{:ok, product} =
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%Product{retailer_id: retailer.id, caliber_id: caliber.id}
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|> Product.changeset(
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Map.merge(
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%{
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title: "Test Ammo 9mm 115gr FMJ",
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url: "/products/test-#{System.unique_integer([:positive])}",
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brand: "TestBrand",
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grain_weight: 115,
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round_count: 50,
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casing: "brass",
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condition: "new",
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in_stock: true,
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last_seen_at: DateTime.truncate(DateTime.utc_now(), :second)
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},
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Map.drop(attrs, [:retailer, :caliber])
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)
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)
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|> Repo.insert()
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product
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end
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def snapshot_fixture(attrs \\ %{}) do
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product = Map.get_lazy(attrs, :product, fn -> product_fixture() end)
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{:ok, snapshot} =
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%PriceSnapshot{product_id: product.id}
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|> PriceSnapshot.changeset(
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Map.merge(
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%{
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price_cents: 1599,
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price_per_round_cents: 32,
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in_stock: true,
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recorded_at: DateTime.truncate(DateTime.utc_now(), :second)
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},
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Map.delete(attrs, :product)
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)
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)
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|> Repo.insert()
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snapshot
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end
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end
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