| 1 |
|
defmodule WalletIntegrations.PaymentRequestStore do |
| 2 |
|
@moduledoc """ |
| 3 |
|
ETS-backed GenServer for PaymentRequest persistence. |
| 4 |
|
|
| 5 |
|
Tables: |
| 6 |
|
- `:wallet_integrations_pay_requests` — keyed by request_id. |
| 7 |
|
- `:wallet_integrations_pay_req_transfer_idx` — bag: {transfer_id, request_id}. |
| 8 |
|
- `:wallet_integrations_pay_req_prov_idx` — set: {provider_reference, request_id} for callback lookup. |
| 9 |
|
""" |
| 10 |
|
|
| 11 |
|
use GenServer |
| 12 |
|
|
| 13 |
|
alias WalletIntegrations.PaymentRequest |
| 14 |
|
|
| 15 |
|
@table :wallet_integrations_pay_requests |
| 16 |
|
@xfer_idx :wallet_integrations_pay_req_transfer_idx |
| 17 |
|
@prov_ref_idx :wallet_integrations_pay_req_prov_idx |
| 18 |
|
|
| 19 |
:-( |
def start_link(opts), do: GenServer.start_link(__MODULE__, opts, name: __MODULE__) |
| 20 |
|
|
| 21 |
|
@spec store(PaymentRequest.t()) :: :ok | {:error, :duplicate_request_id} |
| 22 |
21 |
def store(%PaymentRequest{} = pr), do: GenServer.call(__MODULE__, {:store, pr}) |
| 23 |
|
|
| 24 |
|
@spec get(request_id :: String.t()) :: {:ok, PaymentRequest.t()} | {:error, :not_found} |
| 25 |
37 |
def get(id), do: GenServer.call(__MODULE__, {:get, id}) |
| 26 |
|
|
| 27 |
|
@spec update(PaymentRequest.t()) :: :ok | {:error, :not_found} |
| 28 |
36 |
def update(%PaymentRequest{} = pr), do: GenServer.call(__MODULE__, {:update, pr}) |
| 29 |
|
|
| 30 |
|
@spec get_by_provider_ref(provider_ref :: String.t()) :: {:ok, PaymentRequest.t()} | {:error, :not_found} |
| 31 |
:-( |
def get_by_provider_ref(ref), do: GenServer.call(__MODULE__, {:get_by_prov_ref, ref}) |
| 32 |
|
|
| 33 |
|
@spec list_by_transfer(transfer_id :: String.t()) :: [PaymentRequest.t()] |
| 34 |
:-( |
def list_by_transfer(transfer_id), do: GenServer.call(__MODULE__, {:list_by_transfer, transfer_id}) |
| 35 |
|
|
| 36 |
|
@spec reset() :: :ok |
| 37 |
68 |
def reset, do: GenServer.call(__MODULE__, :reset) |
| 38 |
|
|
| 39 |
|
@impl true |
| 40 |
|
def init(_opts) do |
| 41 |
:-( |
:ets.new(@table, [:set, :protected, :named_table]) |
| 42 |
:-( |
:ets.new(@xfer_idx, [:bag, :protected, :named_table]) |
| 43 |
:-( |
:ets.new(@prov_ref_idx, [:set, :protected, :named_table]) |
| 44 |
|
{:ok, %{}} |
| 45 |
|
end |
| 46 |
|
|
| 47 |
|
@impl true |
| 48 |
|
def handle_call({:store, pr}, _from, state) do |
| 49 |
21 |
if :ets.member(@table, pr.request_id) do |
| 50 |
:-( |
{:reply, {:error, :duplicate_request_id}, state} |
| 51 |
|
else |
| 52 |
21 |
:ets.insert(@table, {pr.request_id, pr}) |
| 53 |
21 |
:ets.insert(@xfer_idx, {pr.transfer_id, pr.request_id}) |
| 54 |
21 |
if pr.provider_reference do |
| 55 |
:-( |
:ets.insert(@prov_ref_idx, {pr.provider_reference, pr.request_id}) |
| 56 |
|
end |
| 57 |
21 |
{:reply, :ok, state} |
| 58 |
|
end |
| 59 |
|
end |
| 60 |
|
|
| 61 |
|
@impl true |
| 62 |
|
def handle_call({:get, id}, _from, state) do |
| 63 |
37 |
result = |
| 64 |
|
case :ets.lookup(@table, id) do |
| 65 |
35 |
[{_, pr}] -> {:ok, pr} |
| 66 |
2 |
[] -> {:error, :not_found} |
| 67 |
|
end |
| 68 |
37 |
{:reply, result, state} |
| 69 |
|
end |
| 70 |
|
|
| 71 |
|
@impl true |
| 72 |
|
def handle_call({:update, pr}, _from, state) do |
| 73 |
36 |
result = |
| 74 |
36 |
case :ets.lookup(@table, pr.request_id) do |
| 75 |
|
[{_, old}] -> |
| 76 |
36 |
:ets.insert(@table, {pr.request_id, pr}) |
| 77 |
|
# Update provider_reference index if changed |
| 78 |
36 |
if old.provider_reference != pr.provider_reference do |
| 79 |
12 |
if old.provider_reference, do: :ets.delete(@prov_ref_idx, old.provider_reference) |
| 80 |
12 |
if pr.provider_reference, do: :ets.insert(@prov_ref_idx, {pr.provider_reference, pr.request_id}) |
| 81 |
|
end |
| 82 |
|
:ok |
| 83 |
:-( |
[] -> |
| 84 |
|
{:error, :not_found} |
| 85 |
|
end |
| 86 |
36 |
{:reply, result, state} |
| 87 |
|
end |
| 88 |
|
|
| 89 |
|
@impl true |
| 90 |
|
def handle_call({:get_by_prov_ref, ref}, _from, state) do |
| 91 |
:-( |
result = |
| 92 |
|
case :ets.lookup(@prov_ref_idx, ref) do |
| 93 |
|
[{_, req_id}] -> |
| 94 |
:-( |
case :ets.lookup(@table, req_id) do |
| 95 |
:-( |
[{_, pr}] -> {:ok, pr} |
| 96 |
:-( |
[] -> {:error, :not_found} |
| 97 |
|
end |
| 98 |
:-( |
[] -> {:error, :not_found} |
| 99 |
|
end |
| 100 |
:-( |
{:reply, result, state} |
| 101 |
|
end |
| 102 |
|
|
| 103 |
|
@impl true |
| 104 |
|
def handle_call({:list_by_transfer, transfer_id}, _from, state) do |
| 105 |
:-( |
ids = :ets.lookup(@xfer_idx, transfer_id) |> Enum.map(fn {_, id} -> id end) |
| 106 |
:-( |
items = Enum.flat_map(ids, fn id -> |
| 107 |
:-( |
case :ets.lookup(@table, id) do |
| 108 |
:-( |
[{_, pr}] -> [pr] |
| 109 |
:-( |
[] -> [] |
| 110 |
|
end |
| 111 |
|
end) |
| 112 |
:-( |
{:reply, items, state} |
| 113 |
|
end |
| 114 |
|
|
| 115 |
|
@impl true |
| 116 |
|
def handle_call(:reset, _from, state) do |
| 117 |
68 |
:ets.delete_all_objects(@table) |
| 118 |
68 |
:ets.delete_all_objects(@xfer_idx) |
| 119 |
68 |
:ets.delete_all_objects(@prov_ref_idx) |
| 120 |
68 |
{:reply, :ok, state} |
| 121 |
|
end |
| 122 |
|
end |