-module(cquill@testing).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch, inline]).
-define(FILEPATH, "src/cquill/testing.gleam").
-export([new_context/0, with_memory_store/1, with_context/1, get_store/1, set_store/2, reset/1, next_id/1, unique_string/3, unique_email/1, unique_username/1, track_insert/3, get_tracked/2, tracked_count/2, create_tables/2, next_ids/2]).
-export_type([test_context/0]).

-if(?OTP_RELEASE >= 27).
-define(MODULEDOC(Str), -moduledoc(Str)).
-define(DOC(Str), -doc(Str)).
-else.
-define(MODULEDOC(Str), -compile([])).
-define(DOC(Str), -compile([])).
-endif.

-type test_context() :: {test_context,
        cquill@adapter@memory:memory_store(),
        integer(),
        gleam@dict:dict(binary(), list(binary()))}.

-file("src/cquill/testing.gleam", 68).
?DOC(
    " Create a new test context with a fresh memory store.\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " let ctx = new_context()\n"
    " // ctx.id_counter starts at 1\n"
    " ```\n"
).
-spec new_context() -> test_context().
new_context() ->
    {test_context, cquill@adapter@memory:new_store(), 1, maps:new()}.

-file("src/cquill/testing.gleam", 87).
?DOC(
    " Run a test function with a fresh memory store.\n"
    "\n"
    " This is the recommended way to write tests that need a memory store.\n"
    " Each test gets a completely fresh store, ensuring test isolation.\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " pub fn insert_user_test() {\n"
    "   use store <- with_memory_store()\n"
    "\n"
    "   let assert Ok(store) = memory.create_table(store, \"users\", [])\n"
    "   // ... test code\n"
    " }\n"
    " ```\n"
).
-spec with_memory_store(fun((cquill@adapter@memory:memory_store()) -> TSZ)) -> TSZ.
with_memory_store(Test_fn) ->
    Store = cquill@adapter@memory:new_store(),
    Test_fn(Store).

-file("src/cquill/testing.gleam", 108).
?DOC(
    " Run a test function with a fresh test context.\n"
    "\n"
    " The context provides additional utilities like ID generation and\n"
    " entity tracking beyond what the raw memory store provides.\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " pub fn multi_entity_test() {\n"
    "   use ctx <- with_context()\n"
    "\n"
    "   let #(ctx, user_id) = next_id(ctx)\n"
    "   let #(ctx, email) = unique_email(ctx)\n"
    "   // ... test code using the context\n"
    " }\n"
    " ```\n"
).
-spec with_context(fun((test_context()) -> TTA)) -> TTA.
with_context(Test_fn) ->
    Ctx = new_context(),
    Test_fn(Ctx).

-file("src/cquill/testing.gleam", 121).
?DOC(
    " Get the memory store from a test context.\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " let store = get_store(ctx)\n"
    " let result = memory.get_row(store, \"users\", \"1\")\n"
    " ```\n"
).
-spec get_store(test_context()) -> cquill@adapter@memory:memory_store().
get_store(Ctx) ->
    erlang:element(2, Ctx).

-file("src/cquill/testing.gleam", 135).
?DOC(
    " Update the memory store in a test context.\n"
    "\n"
    " Use this after performing operations that return a new store.\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " let assert Ok(new_store) = memory.create_table(ctx.store, \"users\", [])\n"
    " let ctx = set_store(ctx, new_store)\n"
    " ```\n"
).
-spec set_store(test_context(), cquill@adapter@memory:memory_store()) -> test_context().
set_store(Ctx, Store) ->
    {test_context, Store, erlang:element(3, Ctx), erlang:element(4, Ctx)}.

-file("src/cquill/testing.gleam", 150).
?DOC(
    " Reset a test context, clearing all data but preserving table structure.\n"
    "\n"
    " Useful for running multiple scenarios within the same test.\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " // After first scenario\n"
    " let ctx = reset(ctx)\n"
    " // Tables still exist but are empty, ID counter resets to 1\n"
    " ```\n"
).
-spec reset(test_context()) -> test_context().
reset(Ctx) ->
    {test_context,
        cquill@adapter@memory:reset(erlang:element(2, Ctx)),
        1,
        maps:new()}.

-file("src/cquill/testing.gleam", 174).
?DOC(
    " Generate the next unique ID for test data.\n"
    " Returns the updated context and the new ID.\n"
    "\n"
    " IDs start at 1 and increment with each call.\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " let #(ctx, id1) = next_id(ctx)\n"
    " let #(ctx, id2) = next_id(ctx)\n"
    " // id1 = 1, id2 = 2\n"
    " ```\n"
).
-spec next_id(test_context()) -> {test_context(), integer()}.
next_id(Ctx) ->
    Id = erlang:element(3, Ctx),
    New_ctx = {test_context,
        erlang:element(2, Ctx),
        Id + 1,
        erlang:element(4, Ctx)},
    {New_ctx, Id}.

-file("src/cquill/testing.gleam", 193).
?DOC(
    " Generate a unique string for test data (useful for emails, usernames, etc.)\n"
    "\n"
    " Combines prefix, unique ID, and suffix to create unique values.\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " let #(ctx, email) = unique_string(ctx, \"user\", \"@example.com\")\n"
    " // email = \"user_1@example.com\"\n"
    "\n"
    " let #(ctx, username) = unique_string(ctx, \"testuser\", \"\")\n"
    " // username = \"testuser_2\"\n"
    " ```\n"
).
-spec unique_string(test_context(), binary(), binary()) -> {test_context(),
    binary()}.
unique_string(Ctx, Prefix, Suffix) ->
    {New_ctx, Id} = next_id(Ctx),
    Value = <<<<<<Prefix/binary, "_"/utf8>>/binary,
            (erlang:integer_to_binary(Id))/binary>>/binary,
        Suffix/binary>>,
    {New_ctx, Value}.

-file("src/cquill/testing.gleam", 215).
?DOC(
    " Generate a unique email for test data.\n"
    "\n"
    " Convenience function that generates emails like \"test_1@example.com\".\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " let #(ctx, email1) = unique_email(ctx)\n"
    " let #(ctx, email2) = unique_email(ctx)\n"
    " // email1 = \"test_1@example.com\"\n"
    " // email2 = \"test_2@example.com\"\n"
    " ```\n"
).
-spec unique_email(test_context()) -> {test_context(), binary()}.
unique_email(Ctx) ->
    unique_string(Ctx, <<"test"/utf8>>, <<"@example.com"/utf8>>).

-file("src/cquill/testing.gleam", 227).
?DOC(
    " Generate a unique username for test data.\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " let #(ctx, username) = unique_username(ctx)\n"
    " // username = \"user_1\"\n"
    " ```\n"
).
-spec unique_username(test_context()) -> {test_context(), binary()}.
unique_username(Ctx) ->
    unique_string(Ctx, <<"user"/utf8>>, <<""/utf8>>).

-file("src/cquill/testing.gleam", 247).
?DOC(
    " Track an inserted entity key for later verification or cleanup.\n"
    "\n"
    " This is useful for tracking what entities were created during a test\n"
    " so you can verify they exist or clean them up.\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " let ctx = track_insert(ctx, \"users\", \"1\")\n"
    " let ctx = track_insert(ctx, \"users\", \"2\")\n"
    " tracked_count(ctx, \"users\")  // Returns 2\n"
    " ```\n"
).
-spec track_insert(test_context(), binary(), binary()) -> test_context().
track_insert(Ctx, Table, Key) ->
    Existing = case gleam_stdlib:map_get(erlang:element(4, Ctx), Table) of
        {ok, Keys} ->
            Keys;

        {error, _} ->
            []
    end,
    Updated = gleam@dict:insert(erlang:element(4, Ctx), Table, [Key | Existing]),
    {test_context, erlang:element(2, Ctx), erlang:element(3, Ctx), Updated}.

-file("src/cquill/testing.gleam", 264).
?DOC(
    " Get all tracked entity keys for a table.\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " let keys = get_tracked(ctx, \"users\")\n"
    " // Returns [\"2\", \"1\"] (most recent first)\n"
    " ```\n"
).
-spec get_tracked(test_context(), binary()) -> list(binary()).
get_tracked(Ctx, Table) ->
    case gleam_stdlib:map_get(erlang:element(4, Ctx), Table) of
        {ok, Keys} ->
            Keys;

        {error, _} ->
            []
    end.

-file("src/cquill/testing.gleam", 279).
?DOC(
    " Get the count of tracked entities for a table.\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " let count = tracked_count(ctx, \"users\")\n"
    " // Returns number of entities tracked for \"users\" table\n"
    " ```\n"
).
-spec tracked_count(test_context(), binary()) -> integer().
tracked_count(Ctx, Table) ->
    erlang:length(get_tracked(Ctx, Table)).

-file("src/cquill/testing.gleam", 301).
?DOC(
    " Create multiple tables in the memory store.\n"
    "\n"
    " Each table is specified as a tuple of (table_name, primary_key_column).\n"
    " This is a convenience function for setting up test fixtures.\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " let store = create_tables(store, [\n"
    "   #(\"users\", \"id\"),\n"
    "   #(\"posts\", \"id\"),\n"
    "   #(\"comments\", \"id\"),\n"
    " ])\n"
    " ```\n"
).
-spec create_tables(
    cquill@adapter@memory:memory_store(),
    list({binary(), binary()})
) -> cquill@adapter@memory:memory_store().
create_tables(Store, Tables) ->
    gleam@list:fold(
        Tables,
        Store,
        fun(Acc_store, Table_def) ->
            {Name, Primary_key} = Table_def,
            cquill@adapter@memory:create_table(Acc_store, Name, Primary_key)
        end
    ).

-file("src/cquill/testing.gleam", 319).
?DOC(
    " Batch generate unique IDs.\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " let #(ctx, ids) = next_ids(ctx, 3)\n"
    " // ids = [1, 2, 3]\n"
    " ```\n"
).
-spec next_ids(test_context(), integer()) -> {test_context(), list(integer())}.
next_ids(Ctx, Count) ->
    _pipe = gleam@list:range(1, Count),
    gleam@list:fold(
        _pipe,
        {Ctx, []},
        fun(Acc, _) ->
            {Current_ctx, Ids} = Acc,
            {New_ctx, Id} = next_id(Current_ctx),
            {New_ctx, lists:append(Ids, [Id])}
        end
    ).