-module(plunk@event).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).
-define(FILEPATH, "src/plunk/event.gleam").
-export([track/2, decode/1]).
-export_type([event/0, track_event_response/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 event() :: {event,
        binary(),
        binary(),
        list({binary(), gleam@json:json()})}.

-type track_event_response() :: {track_event_response,
        boolean(),
        binary(),
        binary(),
        gleam@option:option(binary())}.

-file("src/plunk/event.gleam", 72).
?DOC(
    " Track events in your application and send them to Plunk. This function returns a Gleam `Request` type that can then be used with any client of your choice.\n"
    "\n"
    " # Example\n"
    "\n"
    " In this example we use the `hackney` HTTP client to send the request we get from `track`:\n"
    "\n"
    " ```gleam\n"
    " import gleam/json\n"
    " import gleam/hackney\n"
    " import plunk\n"
    " import plunk/event\n"
    "\n"
    " fn main() {\n"
    "   let instance = plunk.new(key: \"YOUR_API_KEY\") /\n"
    "   let req =\n"
    "     instance\n"
    "     |> event.track(Event(\n"
    "       event: \"your-event\",\n"
    "       email: \"someone@example.com\",\n"
    "        data: [#(\"name\", json.string(\"John\"))],\n"
    "      ))\n"
    "\n"
    "   // In a real project, you want to pattern match on the result of `track` to handle errors instead of using `assert Ok(..)`.\n"
    "   let assert Ok(resp) = hackney.send(req)\n"
    "   let assert Ok(data) = event.decode(resp)\n"
    "   // do whatever you want with the data\n"
    " }\n"
    " ```\n"
).
-spec track(plunk@instance:instance(), event()) -> gleam@http@request:request(binary()).
track(Instance, Event) ->
    Body = begin
        _pipe = gleam@json:object(
            [{<<"event"/utf8>>, gleam@json:string(erlang:element(2, Event))},
                {<<"email"/utf8>>, gleam@json:string(erlang:element(3, Event))},
                {<<"data"/utf8>>, gleam@json:object(erlang:element(4, Event))}]
        ),
        gleam@json:to_string(_pipe)
    end,
    _pipe@1 = Instance,
    plunk@internal@bridge:make_request(_pipe@1, <<"/track"/utf8>>, post, Body).

-file("src/plunk/event.gleam", 86).
?DOC(" Decode the raw response into a `TrackEventResponse` type wrapped in a `Result` type that can be pattern matched on.\n").
-spec decode(gleam@http@response:response(binary())) -> {ok,
        track_event_response()} |
    {error, plunk@types:plunk_error()}.
decode(Res) ->
    _pipe = Res,
    plunk@internal@bridge:decode(_pipe, fun track_event_response_decoder/0).

-file("src/plunk/event.gleam", 26).
-spec track_event_response_decoder() -> gleam@dynamic@decode:decoder(track_event_response()).
track_event_response_decoder() ->
    gleam@dynamic@decode:field(
        <<"success"/utf8>>,
        {decoder, fun gleam@dynamic@decode:decode_bool/1},
        fun(Success) ->
            gleam@dynamic@decode:field(
                <<"contact"/utf8>>,
                {decoder, fun gleam@dynamic@decode:decode_string/1},
                fun(Contact) ->
                    gleam@dynamic@decode:field(
                        <<"event"/utf8>>,
                        {decoder, fun gleam@dynamic@decode:decode_string/1},
                        fun(Event) ->
                            gleam@dynamic@decode:optional_field(
                                <<"timestamp"/utf8>>,
                                none,
                                gleam@dynamic@decode:optional(
                                    {decoder,
                                        fun gleam@dynamic@decode:decode_string/1}
                                ),
                                fun(Timestamp) ->
                                    gleam@dynamic@decode:success(
                                        {track_event_response,
                                            Success,
                                            Contact,
                                            Event,
                                            Timestamp}
                                    )
                                end
                            )
                        end
                    )
                end
            )
        end
    ).