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defmodule WalletSettlement.ReconciliationStore do |
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@moduledoc """ |
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ETS-backed GenServer for reconciliation run persistence. |
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Tables: |
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- `:wallet_recon_runs` — runs keyed by reconciliation_id. |
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""" |
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use GenServer |
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alias WalletSettlement.ReconciliationRun |
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@table :wallet_recon_runs |
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def start_link(opts), do: GenServer.start_link(__MODULE__, opts, name: __MODULE__) |
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@spec store(ReconciliationRun.t()) :: :ok |
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def store(%ReconciliationRun{} = run), do: GenServer.call(__MODULE__, {:store, run}) |
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@spec get(String.t()) :: {:ok, ReconciliationRun.t()} | {:error, :not_found} |
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def get(id), do: GenServer.call(__MODULE__, {:get, id}) |
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@spec update(ReconciliationRun.t()) :: :ok | {:error, :not_found} |
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def update(%ReconciliationRun{} = run), do: GenServer.call(__MODULE__, {:update, run}) |
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@spec list_all() :: [ReconciliationRun.t()] |
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def list_all, do: GenServer.call(__MODULE__, :list_all) |
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def reset, do: GenServer.call(__MODULE__, :reset) |
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@impl true |
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def init(_opts) do |
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:ets.new(@table, [:set, :protected, :named_table]) |
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{:ok, %{}} |
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end |
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@impl true |
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def handle_call({:store, run}, _from, state) do |
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:ets.insert(@table, {run.reconciliation_id, run}) |
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{:reply, :ok, state} |
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end |
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@impl true |
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def handle_call({:get, id}, _from, state) do |
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result = case :ets.lookup(@table, id) do |
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[{_, r}] -> {:ok, r} |
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[] -> {:error, :not_found} |
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end |
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{:reply, result, state} |
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end |
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@impl true |
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def handle_call({:update, run}, _from, state) do |
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result = case :ets.lookup(@table, run.reconciliation_id) do |
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[_] -> :ets.insert(@table, {run.reconciliation_id, run}); :ok |
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[] -> {:error, :not_found} |
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end |
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{:reply, result, state} |
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end |
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@impl true |
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def handle_call(:list_all, _from, state) do |
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{:reply, :ets.tab2list(@table) |> Enum.map(fn {_, r} -> r end), state} |
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end |
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@impl true |
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def handle_call(:reset, _from, state) do |
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:ets.delete_all_objects(@table) |
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{:reply, :ok, state} |
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end |
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end |