-module(based).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch, inline]).
-define(FILEPATH, "src/based.gleam").
-export([database_error_to_string/1, error_to_string/1, transaction/3, new/2, driver/4, 'query'/2, execute/2, batch/2, decode/2, all/3, one/3]).
-export_type([based_error/0, database_error/0, transaction_error/1, queried/0, returning/1, db/2, driver/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(
    " A standardized interface for database operations. This module defines\n"
    " types for adapter packages to use in their public interfaces.\n"
).

-type based_error() :: {based_error, binary()} |
    not_found |
    {decode_error, list(gleam@dynamic@decode:decode_error())} |
    {db_error, database_error()}.

-type database_error() :: {database_error, binary(), binary(), binary()} |
    {constraint_error, binary(), binary(), binary()} |
    {syntax_error, binary(), binary(), binary()} |
    {connection_error, binary()} |
    connection_unavailable |
    connection_timeout.

-type transaction_error(GFD) :: {rollback, GFD} |
    not_in_transaction |
    {transaction_error, binary()}.

-type queried() :: {queried,
        integer(),
        list(binary()),
        list(gleam@dynamic:dynamic_())}.

-type returning(GFE) :: {returning, integer(), list(GFE)}.

-type db(GFF, GFG) :: {db, driver(GFF, GFG), based@sql:adapter(GFF)}.

-opaque driver(GFH, GFI) :: {driver,
        GFI,
        fun((based@sql:'query'(GFH), GFI) -> {ok, queried()} |
            {error, based_error()}),
        fun((binary(), GFI) -> {ok, integer()} | {error, based_error()}),
        fun((list(based@sql:'query'(GFH)), GFI) -> {ok, list(queried())} |
            {error, based_error()})}.

-file("src/based.gleam", 104).
-spec format_error_kind(list(binary()), binary()) -> binary().
format_error_kind(Path, Kind) ->
    Error_kind = begin
        _pipe = gleam@string:join(Path, <<"/"/utf8>>),
        _pipe@1 = gleam@string:append(_pipe, <<"."/utf8>>),
        gleam@string:append(_pipe@1, Kind)
    end,
    <<<<"["/utf8, Error_kind/binary>>/binary, "]"/utf8>>.

-file("src/based.gleam", 113).
-spec format_error_parts(list({binary(), binary()})) -> binary().
format_error_parts(Errors) ->
    _pipe = Errors,
    _pipe@1 = gleam@list:map(
        _pipe,
        fun(Key_val) ->
            {Key, Val} = Key_val,
            <<<<Key/binary, ": "/utf8>>/binary, Val/binary>>
        end
    ),
    gleam@string:join(_pipe@1, <<", "/utf8>>).

-file("src/based.gleam", 87).
-spec format_db_error(binary(), binary(), binary(), binary()) -> binary().
format_db_error(Kind, Code, Name, Message) ->
    Error_description = begin
        _pipe = [{<<"code"/utf8>>, Code},
            {<<"name"/utf8>>, Name},
            {<<"message"/utf8>>, Message}],
        format_error_parts(_pipe)
    end,
    <<<<Kind/binary, " "/utf8>>/binary, Error_description/binary>>.

-file("src/based.gleam", 66).
?DOC(" Formats the provided `DatabaseError` as a string.\n").
-spec database_error_to_string(database_error()) -> binary().
database_error_to_string(Err) ->
    case Err of
        connection_timeout ->
            format_error_kind([<<"based"/utf8>>], <<"ConnectionTimeout"/utf8>>);

        connection_unavailable ->
            format_error_kind(
                [<<"based"/utf8>>],
                <<"ConnectionUnavailable"/utf8>>
            );

        {connection_error, Message} ->
            _pipe = format_error_kind(
                [<<"based"/utf8>>],
                <<"ConnectionError"/utf8>>
            ),
            _pipe@1 = gleam@string:append(_pipe, <<" "/utf8>>),
            gleam@string:append(_pipe@1, Message);

        {database_error, Code, Name, Message@1} ->
            _pipe@2 = format_error_kind(
                [<<"based"/utf8>>],
                <<"DatabaseError"/utf8>>
            ),
            format_db_error(_pipe@2, Code, Name, Message@1);

        {constraint_error, Code@1, Name@1, Message@2} ->
            _pipe@3 = format_error_kind(
                [<<"based"/utf8>>],
                <<"ConstraintError"/utf8>>
            ),
            format_db_error(_pipe@3, Code@1, Name@1, Message@2);

        {syntax_error, Code@2, Name@2, Message@3} ->
            _pipe@4 = format_error_kind(
                [<<"based"/utf8>>],
                <<"SyntaxError"/utf8>>
            ),
            format_db_error(_pipe@4, Code@2, Name@2, Message@3)
    end.

-file("src/based.gleam", 29).
-spec error_to_string(based_error()) -> binary().
error_to_string(Err) ->
    case Err of
        {based_error, Message} ->
            _pipe = format_error_kind([<<"based"/utf8>>], <<"BasedError"/utf8>>),
            _pipe@1 = gleam@string:append(_pipe, <<" "/utf8>>),
            gleam@string:append(_pipe@1, Message);

        not_found ->
            format_error_kind([<<"based"/utf8>>], <<"NotFound"/utf8>>);

        {decode_error, Errors} ->
            Error_string = begin
                _pipe@6 = gleam@list:map(
                    Errors,
                    fun(Err@1) ->
                        {decode_error, Expected, Found, Path} = Err@1,
                        Error_description = begin
                            _pipe@2 = [{<<"expected"/utf8>>, Expected},
                                {<<"found"/utf8>>, Found},
                                {<<"path"/utf8>>,
                                    gleam@string:join(Path, <<", "/utf8>>)}],
                            format_error_parts(_pipe@2)
                        end,
                        _pipe@3 = [<<"gleam"/utf8>>,
                            <<"dynamic"/utf8>>,
                            <<"decode"/utf8>>],
                        _pipe@4 = format_error_kind(
                            _pipe@3,
                            <<"DecodeError"/utf8>>
                        ),
                        _pipe@5 = gleam@string:append(_pipe@4, <<" "/utf8>>),
                        gleam@string:append(_pipe@5, Error_description)
                    end
                ),
                gleam@string:join(_pipe@6, <<", "/utf8>>)
            end,
            _pipe@7 = [<<"based"/utf8>>],
            _pipe@8 = format_error_kind(_pipe@7, <<"DecodeError"/utf8>>),
            _pipe@9 = gleam@string:append(_pipe@8, <<" errors: "/utf8>>),
            gleam@string:append(_pipe@9, Error_string);

        {db_error, Error} ->
            database_error_to_string(Error)
    end.

-file("src/based.gleam", 155).
?DOC(
    " Runs `next` inside a database transaction using the provided `handler`.\n"
    "\n"
    " The handler (supplied by an adapter package) is responsible for beginning\n"
    " the transaction, committing on success, and rolling back on failure.\n"
).
-spec transaction(
    db(GGI, GGJ),
    fun((GGJ, fun((GGJ) -> {ok, GGM} | {error, GGN})) -> {ok, GGM} |
        {error, transaction_error(GGN)}),
    fun((db(GGI, GGJ)) -> {ok, GGM} | {error, GGN})
) -> {ok, GGM} | {error, transaction_error(GGN)}.
transaction(Db, Handler, Next) ->
    Handler(
        erlang:element(2, erlang:element(2, Db)),
        fun(Conn) ->
            Driver = begin
                _record = erlang:element(2, Db),
                {driver,
                    Conn,
                    erlang:element(3, _record),
                    erlang:element(4, _record),
                    erlang:element(5, _record)}
            end,
            _pipe = {db, Driver, erlang:element(3, Db)},
            Next(_pipe)
        end
    ).

-file("src/based.gleam", 188).
?DOC(" Creates a new `Db` from a driver and adapter.\n").
-spec new(driver(GGY, GGZ), based@sql:adapter(GGY)) -> db(GGY, GGZ).
new(Driver, Sql) ->
    {db, Driver, Sql}.

-file("src/based.gleam", 204).
?DOC(" Returns a configured `Driver` record.\n").
-spec driver(
    GHF,
    fun((based@sql:'query'(GHG), GHF) -> {ok, queried()} |
        {error, based_error()}),
    fun((binary(), GHF) -> {ok, integer()} | {error, based_error()}),
    fun((list(based@sql:'query'(GHG)), GHF) -> {ok, list(queried())} |
        {error, based_error()})
) -> driver(GHG, GHF).
driver(Conn, Handle_query, Handle_execute, Handle_batch) ->
    {driver, Conn, Handle_query, Handle_execute, Handle_batch}.

-file("src/based.gleam", 214).
?DOC(" Executes a query using the configured driver.\n").
-spec 'query'(based@sql:'query'(GHO), db(GHO, any())) -> {ok, queried()} |
    {error, based_error()}.
'query'(Query, Db) ->
    (erlang:element(3, erlang:element(2, Db)))(
        Query,
        erlang:element(2, erlang:element(2, Db))
    ).

-file("src/based.gleam", 222).
?DOC(" Executes a raw SQL string using the configured driver.\n").
-spec execute(binary(), db(any(), any())) -> {ok, integer()} |
    {error, based_error()}.
execute(Sql, Db) ->
    (erlang:element(4, erlang:element(2, Db)))(
        Sql,
        erlang:element(2, erlang:element(2, Db))
    ).

-file("src/based.gleam", 227).
?DOC(" Executes a list of queries as a batch.\n").
-spec batch(list(based@sql:'query'(GIB)), db(GIB, any())) -> {ok,
        list(queried())} |
    {error, based_error()}.
batch(Queries, Db) ->
    (erlang:element(5, erlang:element(2, Db)))(
        Queries,
        erlang:element(2, erlang:element(2, Db))
    ).

-file("src/based.gleam", 266).
?DOC(
    " Accepts a `Queried` record and applies a decoder to its rows. Returns a\n"
    " `Returning` record with the decoded rows.\n"
).
-spec decode(queried(), gleam@dynamic@decode:decoder(GJD)) -> {ok,
        returning(GJD)} |
    {error, based_error()}.
decode(Queried, Decoder) ->
    _pipe = erlang:element(4, Queried),
    _pipe@1 = gleam@list:try_map(
        _pipe,
        fun(_capture) -> gleam@dynamic@decode:run(_capture, Decoder) end
    ),
    _pipe@2 = gleam@result:map_error(
        _pipe@1,
        fun(Field@0) -> {decode_error, Field@0} end
    ),
    gleam@result:map(
        _pipe@2,
        fun(_capture@1) ->
            {returning, erlang:element(2, Queried), _capture@1}
        end
    ).

-file("src/based.gleam", 236).
?DOC(
    " A convenience function for callers performing a query that will return\n"
    " a list of rows, but don't need the full `Returning` record.\n"
).
-spec all(
    based@sql:'query'(GIK),
    db(GIK, any()),
    gleam@dynamic@decode:decoder(GIP)
) -> {ok, list(GIP)} | {error, based_error()}.
all(Query, Db, Decoder) ->
    gleam@result:'try'(
        (erlang:element(3, erlang:element(2, Db)))(
            Query,
            erlang:element(2, erlang:element(2, Db))
        ),
        fun(Queried) ->
            gleam@result:map(
                decode(Queried, Decoder),
                fun(Returning) -> erlang:element(3, Returning) end
            )
        end
    ).

-file("src/based.gleam", 251).
?DOC(
    " A convenience function for callers performing a query that will return\n"
    " only one row. It's up to callers to ensure they're providing the correct\n"
    " SQL query to avoid decoding `n` rows and then losing all but the first.\n"
    " Returns `Error(NotFound)` if the query returns zero rows.\n"
).
-spec one(
    based@sql:'query'(GIU),
    db(GIU, any()),
    gleam@dynamic@decode:decoder(GIZ)
) -> {ok, GIZ} | {error, based_error()}.
one(Query, Db, Decoder) ->
    gleam@result:'try'(
        (erlang:element(3, erlang:element(2, Db)))(
            Query,
            erlang:element(2, erlang:element(2, Db))
        ),
        fun(Queried) ->
            gleam@result:'try'(
                decode(Queried, Decoder),
                fun(Returning) -> _pipe = erlang:element(3, Returning),
                    _pipe@1 = gleam@list:first(_pipe),
                    gleam@result:map_error(_pipe@1, fun(_) -> not_found end) end
            )
        end
    ).