-module(dream_test@unit_context).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch, inline]).
-define(FILEPATH, "src/dream_test/unit_context.gleam").
-export([describe/3, group/2, it/2, before_all/1, before_each/1, after_each/1, after_all/1, with_tags/2, skip/2]).

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

?MODULEDOC(
    " Context-aware unit DSL (`unit_context`).\n"
    "\n"
    " Use this module when you want hooks and tests to operate on a shared,\n"
    " strongly-typed context value (your own record/union).\n"
    "\n"
    " - You provide an initial context value to `describe`.\n"
    " - `before_all` / `before_each` can transform the context.\n"
    " - `it` receives the current context.\n"
    "\n"
    " This builds a `dream_test/types.TestSuite(context)` under the hood.\n"
    "\n"
    " ## When should I use this?\n"
    "\n"
    " - Use `dream_test/unit` for most tests (no explicit context).\n"
    " - Use `dream_test/unit_context` when you want an explicit context value\n"
    "   passed into every test (database handles, fixtures, counters, etc.).\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " import dream_test/matchers.{be_equal, or_fail_with, should}\n"
    " import dream_test/reporters/bdd\n"
    " import dream_test/reporters/progress\n"
    " import dream_test/runner\n"
    " import dream_test/unit_context.{before_each, describe, it}\n"
    "\n"
    " pub type Context {\n"
    "   Context(counter: Int)\n"
    " }\n"
    "\n"
    " fn increment_counter(context: Context) {\n"
    "   Ok(Context(counter: context.counter + 1))\n"
    " }\n"
    "\n"
    " pub fn suite() {\n"
    "   describe(\"Context-aware suite\", Context(counter: 0), [\n"
    "     before_each(increment_counter),\n"
    "     it(\"receives the updated context\", fn(context: Context) {\n"
    "       context.counter\n"
    "       |> should\n"
    "       |> be_equal(1)\n"
    "       |> or_fail_with(\"expected counter to be 1 after before_each\")\n"
    "     }),\n"
    "   ])\n"
    " }\n"
    "\n"
    " pub fn main() {\n"
    "   runner.new([suite()])\n"
    "   |> runner.progress_reporter(progress.new())\n"
    "   |> runner.results_reporters([bdd.new()])\n"
    "   |> runner.exit_on_failure()\n"
    "   |> runner.run()\n"
    " }\n"
    " ```\n"
).

-file("src/dream_test/unit_context.gleam", 115).
?DOC(
    " Create a top-level context-aware suite with an explicit initial context.\n"
    "\n"
    " ## Parameters\n"
    "\n"
    " - `name`: Display name for the suite (shown in reports)\n"
    " - `seed`: Initial context value passed into hooks and tests\n"
    " - `children`: Tests, groups, and hooks that make up the suite\n"
    "\n"
    " ## Returns\n"
    "\n"
    " A `TestSuite(context)` you can run with `dream_test/runner`.\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " import dream_test/matchers.{be_equal, or_fail_with, should}\n"
    " import dream_test/reporters/bdd\n"
    " import dream_test/reporters/progress\n"
    " import dream_test/runner\n"
    " import dream_test/unit_context.{before_each, describe, it}\n"
    "\n"
    " pub type Context {\n"
    "   Context(counter: Int)\n"
    " }\n"
    "\n"
    " fn increment_counter(context: Context) {\n"
    "   Ok(Context(counter: context.counter + 1))\n"
    " }\n"
    "\n"
    " pub fn suite() {\n"
    "   describe(\"Context-aware suite\", Context(counter: 0), [\n"
    "     before_each(increment_counter),\n"
    "     it(\"receives the updated context\", fn(context: Context) {\n"
    "       context.counter\n"
    "       |> should\n"
    "       |> be_equal(1)\n"
    "       |> or_fail_with(\"expected counter to be 1 after before_each\")\n"
    "     }),\n"
    "   ])\n"
    " }\n"
    "\n"
    " pub fn main() {\n"
    "   runner.new([suite()])\n"
    "   |> runner.progress_reporter(progress.new())\n"
    "   |> runner.results_reporters([bdd.new()])\n"
    "   |> runner.exit_on_failure()\n"
    "   |> runner.run()\n"
    " }\n"
    " ```\n"
).
-spec describe(binary(), LHA, list(dream_test@types:node_(LHA))) -> dream_test@types:root(LHA).
describe(Name, Seed, Children) ->
    {root, Seed, {group, Name, [], Children}}.

-file("src/dream_test/unit_context.gleam", 183).
?DOC(
    " Create a nested group inside a context-aware suite.\n"
    "\n"
    " ## Parameters\n"
    "\n"
    " - `name`: Display name for the group (shown in reports)\n"
    " - `children`: Tests and hooks that belong to this group\n"
    "\n"
    " ## Returns\n"
    "\n"
    " A `ContextNode(context)` you can include in `describe`/`group`.\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " import dream_test/matchers.{be_equal, or_fail_with, should}\n"
    " import dream_test/reporters/bdd\n"
    " import dream_test/reporters/progress\n"
    " import dream_test/runner\n"
    " import dream_test/unit_context.{before_each, describe, group, it}\n"
    " import gleam/io\n"
    "\n"
    " pub type Context {\n"
    "   Context(counter: Int)\n"
    " }\n"
    "\n"
    " fn increment_counter(context: Context) {\n"
    "   Ok(Context(counter: context.counter + 1))\n"
    " }\n"
    "\n"
    " pub fn suite() {\n"
    "   describe(\"Context-aware grouping\", Context(counter: 0), [\n"
    "     // This outer hook applies everywhere under this describe, including groups.\n"
    "     before_each(increment_counter),\n"
    "     group(\"inner group\", [\n"
    "       // This hook only applies to tests inside this group.\n"
    "       before_each(increment_counter),\n"
    "       it(\"sees both outer + inner hooks\", fn(context: Context) {\n"
    "         context.counter\n"
    "         |> should\n"
    "         |> be_equal(2)\n"
    "         |> or_fail_with(\"expected counter to be 2 (outer + inner before_each)\")\n"
    "       }),\n"
    "     ]),\n"
    "     it(\"sees only outer hook\", fn(context: Context) {\n"
    "       context.counter\n"
    "       |> should\n"
    "       |> be_equal(1)\n"
    "       |> or_fail_with(\"expected counter to be 1 (outer before_each only)\")\n"
    "     }),\n"
    "   ])\n"
    " }\n"
    "\n"
    " pub fn main() {\n"
    "   runner.new([suite()])\n"
    "   |> runner.progress_reporter(progress.new())\n"
    "   |> runner.results_reporters([bdd.new()])\n"
    "   |> runner.exit_on_failure()\n"
    "   |> runner.run()\n"
    " }\n"
    " ```\n"
).
-spec group(binary(), list(dream_test@types:node_(LHE))) -> dream_test@types:node_(LHE).
group(Name, Children) ->
    {group, Name, [], Children}.

-file("src/dream_test/unit_context.gleam", 242).
?DOC(
    " Define a context-aware test case.\n"
    "\n"
    " The test body receives the current context and returns:\n"
    " `Result(AssertionResult, String)`.\n"
    "\n"
    " ## Parameters\n"
    "\n"
    " - `name`: Display name for the test (shown in reports)\n"
    " - `run`: Test body function that receives the current context\n"
    "\n"
    " ## Returns\n"
    "\n"
    " A `ContextNode(context)` you can include in `describe`/`group`.\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " import dream_test/matchers.{be_equal, or_fail_with, should}\n"
    " import dream_test/reporters/bdd\n"
    " import dream_test/reporters/progress\n"
    " import dream_test/runner\n"
    " import dream_test/unit_context.{before_each, describe, it}\n"
    " import gleam/io\n"
    "\n"
    " pub type Context {\n"
    "   Context(counter: Int)\n"
    " }\n"
    "\n"
    " fn increment_counter(context: Context) {\n"
    "   Ok(Context(counter: context.counter + 1))\n"
    " }\n"
    "\n"
    " pub fn suite() {\n"
    "   describe(\"Context-aware suite\", Context(counter: 0), [\n"
    "     before_each(increment_counter),\n"
    "     it(\"receives the updated context\", fn(context: Context) {\n"
    "       context.counter\n"
    "       |> should\n"
    "       |> be_equal(1)\n"
    "       |> or_fail_with(\"expected counter to be 1 after before_each\")\n"
    "     }),\n"
    "   ])\n"
    " }\n"
    "\n"
    " pub fn main() {\n"
    "   runner.new([suite()])\n"
    "   |> runner.progress_reporter(progress.new())\n"
    "   |> runner.results_reporters([bdd.new()])\n"
    "   |> runner.exit_on_failure()\n"
    "   |> runner.run()\n"
    " }\n"
    " ```\n"
).
-spec it(
    binary(),
    fun((LHI) -> {ok, dream_test@types:assertion_result()} | {error, binary()})
) -> dream_test@types:node_(LHI).
it(Name, Run) ->
    {test, Name, [], unit, Run, none, none}.

-file("src/dream_test/unit_context.gleam", 325).
?DOC(" Run once before any tests and produce/transform the context.\n").
-spec before_all(fun((LHQ) -> {ok, LHQ} | {error, binary()})) -> dream_test@types:node_(LHQ).
before_all(Setup) ->
    {before_all, Setup}.

-file("src/dream_test/unit_context.gleam", 332).
?DOC(" Run before each test and transform the context for that test.\n").
-spec before_each(fun((LHU) -> {ok, LHU} | {error, binary()})) -> dream_test@types:node_(LHU).
before_each(Setup) ->
    {before_each, Setup}.

-file("src/dream_test/unit_context.gleam", 339).
?DOC(" Run after each test for cleanup.\n").
-spec after_each(fun((LHY) -> {ok, nil} | {error, binary()})) -> dream_test@types:node_(LHY).
after_each(Teardown) ->
    {after_each, Teardown}.

-file("src/dream_test/unit_context.gleam", 346).
?DOC(" Run once after all tests for cleanup.\n").
-spec after_all(fun((LIC) -> {ok, nil} | {error, binary()})) -> dream_test@types:node_(LIC).
after_all(Teardown) ->
    {after_all, Teardown}.

-file("src/dream_test/unit_context.gleam", 400).
?DOC(
    " Attach tags to a node.\n"
    "\n"
    " Tags can be used by runners and reporters for filtering and display.\n"
    " Prefer piping: `node |> with_tags([\"tag\"])`.\n"
    "\n"
    " ## Parameters\n"
    "\n"
    " - `node`: A group or test node to tag\n"
    " - `tags`: Tags to attach (replaces any existing tags on that node)\n"
    "\n"
    " ## Returns\n"
    "\n"
    " A new node with the provided tags.\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " import dream_test/matchers.{succeed}\n"
    " import dream_test/reporters/bdd\n"
    " import dream_test/reporters/progress\n"
    " import dream_test/runner\n"
    " import dream_test/unit_context.{describe, group, it, with_tags}\n"
    " import gleam/io\n"
    "\n"
    " pub type Context {\n"
    "   Context(counter: Int)\n"
    " }\n"
    "\n"
    " pub fn suite() {\n"
    "   describe(\"Tagging context-aware tests\", Context(counter: 0), [\n"
    "     group(\"group tagged slow\", [\n"
    "       it(\"inherits the group tag\", fn(_context: Context) { Ok(succeed()) }),\n"
    "     ])\n"
    "       |> with_tags([\"slow\"]),\n"
    "     it(\"can tag an individual test\", fn(_context: Context) { Ok(succeed()) })\n"
    "       |> with_tags([\"unit_context\", \"fast\"]),\n"
    "     it(\"untagged tests still work\", fn(_context: Context) { Ok(succeed()) }),\n"
    "   ])\n"
    " }\n"
    "\n"
    " pub fn main() {\n"
    "   runner.new([suite()])\n"
    "   |> runner.progress_reporter(progress.new())\n"
    "   |> runner.results_reporters([bdd.new()])\n"
    "   |> runner.exit_on_failure()\n"
    "   |> runner.run()\n"
    " }\n"
    " ```\n"
).
-spec with_tags(dream_test@types:node_(LIG), list(binary())) -> dream_test@types:node_(LIG).
with_tags(Node, Tags) ->
    case Node of
        {group, Name, _, Children} ->
            {group, Name, Tags, Children};

        {test, Name@1, _, Kind, Run, Timeout_ms, Source} ->
            {test, Name@1, Tags, Kind, Run, Timeout_ms, Source};

        Other ->
            Other
    end.

-file("src/dream_test/unit_context.gleam", 420).
-spec skipped_test_run(any()) -> {ok, dream_test@types:assertion_result()} |
    {error, binary()}.
skipped_test_run(_) ->
    {ok, assertion_skipped}.

-file("src/dream_test/unit_context.gleam", 310).
?DOC(
    " Define a skipped context-aware test.\n"
    "\n"
    " `skip` has the same shape as `it` so you can easily switch a test between\n"
    " running and skipped without rewriting the test body.\n"
    "\n"
    " The provided test body is preserved for that purpose, but it is **not\n"
    " executed** while the test is skipped.\n"
    "\n"
    " ## Parameters\n"
    "\n"
    " - `name`: Display name for the skipped test (shown in reports)\n"
    " - `run`: Unused; kept so you can switch between `it` and `skip` easily\n"
    "\n"
    " ## Returns\n"
    "\n"
    " A `ContextNode(context)` that always results in `AssertionSkipped`.\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " import dream_test/matchers.{be_equal, or_fail_with, should, succeed}\n"
    " import dream_test/reporters/bdd\n"
    " import dream_test/reporters/progress\n"
    " import dream_test/runner\n"
    " import dream_test/unit_context.{describe, it, skip}\n"
    " import gleam/io\n"
    "\n"
    " pub type Context {\n"
    "   Context(counter: Int)\n"
    " }\n"
    "\n"
    " pub fn suite() {\n"
    "   describe(\"Skipping context-aware tests\", Context(counter: 0), [\n"
    "     skip(\"this test is skipped\", fn(_context: Context) {\n"
    "       // This would pass if it ran, but Dream Test will mark it skipped.\n"
    "       Ok(succeed())\n"
    "     }),\n"
    "     it(\"normal tests still run\", fn(context: Context) {\n"
    "       context.counter\n"
    "       |> should\n"
    "       |> be_equal(0)\n"
    "       |> or_fail_with(\"expected counter to start at 0\")\n"
    "     }),\n"
    "   ])\n"
    " }\n"
    "\n"
    " pub fn main() {\n"
    "   runner.new([suite()])\n"
    "   |> runner.progress_reporter(progress.new())\n"
    "   |> runner.results_reporters([bdd.new()])\n"
    "   |> runner.exit_on_failure()\n"
    "   |> runner.run()\n"
    " }\n"
    " ```\n"
).
-spec skip(
    binary(),
    fun((LHM) -> {ok, dream_test@types:assertion_result()} | {error, binary()})
) -> dream_test@types:node_(LHM).
skip(Name, _) ->
    {test, Name, [], unit, fun skipped_test_run/1, none, none}.