-module(glsql@internal@parser).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch, inline]).
-define(FILEPATH, "src/glsql/internal/parser.gleam").
-export([parse/1]).

-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(false).

-file("src/glsql/internal/parser.gleam", 105).
?DOC(false).
-spec skip_statement(list(glsql@internal@token:positioned())) -> list(glsql@internal@token:positioned()).
skip_statement(Tokens) ->
    case Tokens of
        [] ->
            [];

        [{positioned, semicolon, _, _} | Rest] ->
            Rest;

        [_ | Rest@1] ->
            skip_statement(Rest@1)
    end.

-file("src/glsql/internal/parser.gleam", 639).
?DOC(false).
-spec expect(
    list(glsql@internal@token:positioned()),
    glsql@internal@token:token(),
    binary()
) -> {ok, {integer(), list(glsql@internal@token:positioned())}} |
    {error, glsql@internal@error:error()}.
expect(Tokens, Want, Label) ->
    case Tokens of
        [{positioned, T, Pos, _} | Rest] when T =:= Want ->
            {ok, {Pos, Rest}};

        [{positioned, T@1, Pos@1, _} | _] ->
            {error,
                {parse_error,
                    <<<<<<<<"Expected `"/utf8, Label/binary>>/binary,
                                "`, found `"/utf8>>/binary,
                            (glsql@internal@token:to_string(T@1))/binary>>/binary,
                        "`"/utf8>>,
                    Pos@1,
                    none}};

        [] ->
            {error,
                {parse_error,
                    <<<<"Unexpected end of file, expected `"/utf8,
                            Label/binary>>/binary,
                        "`"/utf8>>,
                    0,
                    none}}
    end.

-file("src/glsql/internal/parser.gleam", 598).
?DOC(false).
-spec identifier(list(glsql@internal@token:positioned())) -> {ok,
        {binary(), integer(), list(glsql@internal@token:positioned())}} |
    {error, glsql@internal@error:error()}.
identifier(Tokens) ->
    case Tokens of
        [{positioned, {word, W}, Pos, _} | Rest] ->
            {ok, {W, Pos, Rest}};

        [{positioned, {quoted_ident, W@1}, Pos@1, _} | Rest@1] ->
            {ok, {W@1, Pos@1, Rest@1}};

        [{positioned, T, Pos@2, _} | _] ->
            {error,
                {parse_error,
                    <<<<"Expected a name, found `"/utf8,
                            (glsql@internal@token:to_string(T))/binary>>/binary,
                        "`"/utf8>>,
                    Pos@2,
                    none}};

        [] ->
            {error,
                {parse_error,
                    <<"Unexpected end of file, expected a name"/utf8>>,
                    0,
                    none}}
    end.

-file("src/glsql/internal/parser.gleam", 402).
?DOC(false).
-spec skip_words(list(glsql@internal@token:positioned()), list(binary())) -> list(glsql@internal@token:positioned()).
skip_words(Tokens, Words) ->
    case Tokens of
        [{positioned, {word, W}, _, _} | Rest] ->
            case gleam@list:contains(Words, string:lowercase(W)) of
                true ->
                    skip_words(Rest, Words);

                false ->
                    Tokens
            end;

        _ ->
            Tokens
    end.

-file("src/glsql/internal/parser.gleam", 445).
?DOC(false).
-spec join(binary(), binary()) -> binary().
join(Acc, Word) ->
    case (Acc =:= <<""/utf8>>) orelse gleam_stdlib:string_ends_with(
        Acc,
        <<"("/utf8>>
    ) of
        true ->
            <<Acc/binary, Word/binary>>;

        false ->
            <<<<Acc/binary, " "/utf8>>/binary, Word/binary>>
    end.

-file("src/glsql/internal/parser.gleam", 413).
?DOC(false).
-spec take_expression(
    list(glsql@internal@token:positioned()),
    binary(),
    integer()
) -> {binary(), list(glsql@internal@token:positioned())}.
take_expression(Tokens, Acc, Depth) ->
    case Tokens of
        [] ->
            {gleam@string:trim(Acc), []};

        [{positioned, comma, _, _} | _] when Depth =:= 0 ->
            {gleam@string:trim(Acc), Tokens};

        [{positioned, r_paren, _, _} | _] when Depth =:= 0 ->
            {gleam@string:trim(Acc), Tokens};

        [{positioned, {word, W}, _, _} | Rest] when Depth =:= 0 ->
            case gleam@list:contains(
                [<<"not"/utf8>>,
                    <<"null"/utf8>>,
                    <<"primary"/utf8>>,
                    <<"unique"/utf8>>,
                    <<"default"/utf8>>,
                    <<"references"/utf8>>,
                    <<"check"/utf8>>,
                    <<"constraint"/utf8>>,
                    <<"foreign"/utf8>>,
                    <<"generated"/utf8>>,
                    <<"collate"/utf8>>],
                string:lowercase(W)
            ) of
                true ->
                    {gleam@string:trim(Acc), Tokens};

                false ->
                    take_expression(Rest, join(Acc, W), Depth)
            end;

        [{positioned, l_paren, _, _} | Rest@1] ->
            take_expression(Rest@1, <<Acc/binary, "("/utf8>>, Depth + 1);

        [{positioned, r_paren, _, _} | Rest@2] ->
            take_expression(Rest@2, <<Acc/binary, ")"/utf8>>, Depth - 1);

        [{positioned, {word, W@1}, _, _} | Rest@3] ->
            take_expression(Rest@3, join(Acc, W@1), Depth);

        [{positioned, T, _, _} | Rest@4] ->
            take_expression(
                Rest@4,
                <<Acc/binary, (glsql@internal@token:to_string(T))/binary>>,
                Depth
            )
    end.

-file("src/glsql/internal/parser.gleam", 378).
?DOC(false).
-spec take_parens(list(glsql@internal@token:positioned())) -> {binary(),
    list(glsql@internal@token:positioned())}.
take_parens(Tokens) ->
    case Tokens of
        [{positioned, l_paren, _, _} | Rest] ->
            {Expr, Rest@1} = take_expression(Rest, <<""/utf8>>, 0),
            case Rest@1 of
                [{positioned, r_paren, _, _} | Rest@2] ->
                    {Expr, Rest@2};

                _ ->
                    {Expr, Rest@1}
            end;

        _ ->
            take_expression(Tokens, <<""/utf8>>, 0)
    end.

-file("src/glsql/internal/parser.gleam", 391).
?DOC(false).
-spec discard_parens(list(glsql@internal@token:positioned())) -> list(glsql@internal@token:positioned()).
discard_parens(Tokens) ->
    case Tokens of
        [{positioned, l_paren, _, _} | _] ->
            {_, Rest} = take_parens(Tokens),
            Rest;

        _ ->
            Tokens
    end.

-file("src/glsql/internal/parser.gleam", 363).
?DOC(false).
-spec generated_value(list(glsql@internal@token:positioned())) -> {binary(),
    list(glsql@internal@token:positioned())}.
generated_value(Tokens) ->
    Identity = case Tokens of
        [{positioned, {word, W}, _, _} | _] ->
            string:lowercase(W) =:= <<"identity"/utf8>>;

        _ ->
            false
    end,
    case {Identity, Tokens} of
        {true, [_ | Rest]} ->
            {<<"identity"/utf8>>, discard_parens(Rest)};

        {_, _} ->
            {Expr, Rest@1} = take_parens(Tokens),
            {Expr, skip_words(Rest@1, [<<"stored"/utf8>>, <<"virtual"/utf8>>])}
    end.

-file("src/glsql/internal/parser.gleam", 612).
?DOC(false).
-spec keyword(list(glsql@internal@token:positioned()), binary()) -> {ok,
        {integer(), list(glsql@internal@token:positioned())}} |
    {error, glsql@internal@error:error()}.
keyword(Tokens, Want) ->
    case Tokens of
        [{positioned, {word, W}, Pos, _} | Rest] ->
            case string:lowercase(W) =:= Want of
                true ->
                    {ok, {Pos, Rest}};

                false ->
                    {error,
                        {parse_error,
                            <<<<<<<<"Expected `"/utf8, Want/binary>>/binary,
                                        "`, found `"/utf8>>/binary,
                                    W/binary>>/binary,
                                "`"/utf8>>,
                            Pos,
                            none}}
            end;

        [{positioned, T, Pos@1, _} | _] ->
            {error,
                {parse_error,
                    <<<<<<<<"Expected `"/utf8, Want/binary>>/binary,
                                "`, found `"/utf8>>/binary,
                            (glsql@internal@token:to_string(T))/binary>>/binary,
                        "`"/utf8>>,
                    Pos@1,
                    none}};

        [] ->
            {error,
                {parse_error,
                    <<<<"Unexpected end of file, expected `"/utf8, Want/binary>>/binary,
                        "`"/utf8>>,
                    0,
                    none}}
    end.

-file("src/glsql/internal/parser.gleam", 338).
?DOC(false).
-spec collect_names(list(glsql@internal@token:positioned()), list(binary())) -> {ok,
        {list(binary()), list(glsql@internal@token:positioned())}} |
    {error, glsql@internal@error:error()}.
collect_names(Tokens, Acc) ->
    gleam@result:'try'(
        identifier(Tokens),
        fun(_use0) ->
            {Name, _, Rest} = _use0,
            case Rest of
                [{positioned, comma, _, _} | Rest@1] ->
                    collect_names(Rest@1, [Name | Acc]);

                [{positioned, r_paren, _, _} | Rest@2] ->
                    {ok, {lists:reverse([Name | Acc]), Rest@2}};

                [{positioned, T, Pos, _} | _] ->
                    {error,
                        {parse_error,
                            <<<<"Expected `,` or `)`, found `"/utf8,
                                    (glsql@internal@token:to_string(T))/binary>>/binary,
                                "`"/utf8>>,
                            Pos,
                            none}};

                [] ->
                    {error,
                        {parse_error,
                            <<"Unexpected end of file in column list"/utf8>>,
                            0,
                            none}}
            end
        end
    ).

-file("src/glsql/internal/parser.gleam", 329).
?DOC(false).
-spec optional_column_list(list(glsql@internal@token:positioned())) -> {ok,
        {list(binary()), list(glsql@internal@token:positioned())}} |
    {error, glsql@internal@error:error()}.
optional_column_list(Tokens) ->
    case Tokens of
        [{positioned, l_paren, _, _} | Rest] ->
            collect_names(Rest, []);

        _ ->
            {ok, {[], Tokens}}
    end.

-file("src/glsql/internal/parser.gleam", 585).
?DOC(false).
-spec qualified_name(list(glsql@internal@token:positioned())) -> {ok,
        {gleam@option:option(binary()),
            binary(),
            list(glsql@internal@token:positioned())}} |
    {error, glsql@internal@error:error()}.
qualified_name(Tokens) ->
    gleam@result:'try'(
        identifier(Tokens),
        fun(_use0) ->
            {First, _, Rest} = _use0,
            case Rest of
                [{positioned, dot, _, _} | Rest@1] ->
                    gleam@result:'try'(
                        identifier(Rest@1),
                        fun(_use0@1) ->
                            {Second, _, Rest@2} = _use0@1,
                            {ok, {{some, First}, Second, Rest@2}}
                        end
                    );

                _ ->
                    {ok, {none, First, Rest}}
            end
        end
    ).

-file("src/glsql/internal/parser.gleam", 185).
?DOC(false).
-spec parse_column_constraints(
    list(glsql@internal@token:positioned()),
    list(glsql@internal@ast:column_constraint())
) -> {ok,
        {list(glsql@internal@ast:column_constraint()),
            list(glsql@internal@token:positioned())}} |
    {error, glsql@internal@error:error()}.
parse_column_constraints(Tokens, Acc) ->
    case Tokens of
        [{positioned, comma, _, _} | _] ->
            {ok, {Acc, Tokens}};

        [{positioned, r_paren, _, _} | _] ->
            {ok, {Acc, Tokens}};

        [] ->
            {ok, {Acc, Tokens}};

        [{positioned, {word, W}, Pos, _} | Rest] ->
            case string:lowercase(W) of
                <<"not"/utf8>> ->
                    gleam@result:'try'(
                        keyword(Rest, <<"null"/utf8>>),
                        fun(_use0) ->
                            {_, Rest@1} = _use0,
                            parse_column_constraints(
                                Rest@1,
                                [{not_null, Pos} | Acc]
                            )
                        end
                    );

                <<"null"/utf8>> ->
                    parse_column_constraints(Rest, [{nullable, Pos} | Acc]);

                <<"primary"/utf8>> ->
                    gleam@result:'try'(
                        keyword(Rest, <<"key"/utf8>>),
                        fun(_use0@1) ->
                            {_, Rest@2} = _use0@1,
                            parse_column_constraints(
                                Rest@2,
                                [{primary_key, Pos} | Acc]
                            )
                        end
                    );

                <<"unique"/utf8>> ->
                    parse_column_constraints(Rest, [{unique, Pos} | Acc]);

                <<"default"/utf8>> ->
                    {Expr, Rest@3} = take_expression(Rest, <<""/utf8>>, 0),
                    parse_column_constraints(
                        Rest@3,
                        [{default, Expr, Pos} | Acc]
                    );

                <<"check"/utf8>> ->
                    {Expr@1, Rest@4} = take_expression(Rest, <<""/utf8>>, 0),
                    parse_column_constraints(
                        Rest@4,
                        [{check, Expr@1, Pos} | Acc]
                    );

                <<"references"/utf8>> ->
                    gleam@result:'try'(
                        qualified_name(Rest),
                        fun(_use0@2) ->
                            {_, Tbl, Rest@5} = _use0@2,
                            gleam@result:'try'(
                                optional_column_list(Rest@5),
                                fun(_use0@3) ->
                                    {Cols, Rest@6} = _use0@3,
                                    parse_column_constraints(
                                        Rest@6,
                                        [{references, Tbl, Cols, Pos} | Acc]
                                    )
                                end
                            )
                        end
                    );

                <<"generated"/utf8>> ->
                    Rest@7 = skip_words(
                        Rest,
                        [<<"always"/utf8>>, <<"by"/utf8>>, <<"default"/utf8>>]
                    ),
                    gleam@result:'try'(
                        keyword(Rest@7, <<"as"/utf8>>),
                        fun(_use0@4) ->
                            {_, Rest@8} = _use0@4,
                            {Expr@2, Rest@9} = generated_value(Rest@8),
                            parse_column_constraints(
                                Rest@9,
                                [{default, Expr@2, Pos} | Acc]
                            )
                        end
                    );

                <<"collate"/utf8>> ->
                    gleam@result:'try'(
                        identifier(Rest),
                        fun(_use0@5) ->
                            {_, _, Rest@10} = _use0@5,
                            parse_column_constraints(Rest@10, Acc)
                        end
                    );

                Other ->
                    {error,
                        {parse_error,
                            <<<<"Unknown column constraint `"/utf8, W/binary>>/binary,
                                "`"/utf8>>,
                            Pos,
                            glsql@internal@suggest:closest(
                                Other,
                                [<<"not"/utf8>>,
                                    <<"null"/utf8>>,
                                    <<"primary"/utf8>>,
                                    <<"unique"/utf8>>,
                                    <<"default"/utf8>>,
                                    <<"references"/utf8>>,
                                    <<"check"/utf8>>,
                                    <<"constraint"/utf8>>,
                                    <<"foreign"/utf8>>,
                                    <<"generated"/utf8>>,
                                    <<"collate"/utf8>>]
                            )}}
            end;

        [{positioned, T, Pos@1, _} | _] ->
            {error,
                {parse_error,
                    <<<<"Unexpected `"/utf8,
                            (glsql@internal@token:to_string(T))/binary>>/binary,
                        "` in column definition"/utf8>>,
                    Pos@1,
                    none}}
    end.

-file("src/glsql/internal/parser.gleam", 561).
?DOC(false).
-spec parse_array_dims(list(glsql@internal@token:positioned()), integer()) -> {integer(),
    list(glsql@internal@token:positioned())}.
parse_array_dims(Tokens, Count) ->
    case Tokens of
        [{positioned, l_bracket, _, _}, {positioned, r_bracket, _, _} | Rest] ->
            parse_array_dims(Rest, Count + 1);

        _ ->
            {Count, Tokens}
    end.

-file("src/glsql/internal/parser.gleam", 544).
?DOC(false).
-spec collect_args(list(glsql@internal@token:positioned()), list(binary())) -> {ok,
        {list(binary()), list(glsql@internal@token:positioned())}} |
    {error, glsql@internal@error:error()}.
collect_args(Tokens, Acc) ->
    case Tokens of
        [{positioned, {number, N}, _, _}, {positioned, comma, _, _} | Rest] ->
            collect_args(Rest, [N | Acc]);

        [{positioned, {number, N@1}, _, _},
            {positioned, r_paren, _, _} |
            Rest@1] ->
            {ok, {lists:reverse([N@1 | Acc]), Rest@1}};

        [{positioned, {word, W}, _, _}, {positioned, r_paren, _, _} | Rest@2] ->
            {ok, {lists:reverse([W | Acc]), Rest@2}};

        [{positioned, _, Pos, _} | _] ->
            {error,
                {parse_error, <<"Expected a type argument"/utf8>>, Pos, none}};

        [] ->
            {error,
                {parse_error,
                    <<"Unexpected end of file in type arguments"/utf8>>,
                    0,
                    none}}
    end.

-file("src/glsql/internal/parser.gleam", 537).
?DOC(false).
-spec parse_type_args(list(glsql@internal@token:positioned())) -> {ok,
        {list(binary()), list(glsql@internal@token:positioned())}} |
    {error, glsql@internal@error:error()}.
parse_type_args(Tokens) ->
    case Tokens of
        [{positioned, l_paren, _, _} | Rest] ->
            collect_args(Rest, []);

        _ ->
            {ok, {[], Tokens}}
    end.

-file("src/glsql/internal/parser.gleam", 525).
?DOC(false).
-spec match_words(list(binary()), list(glsql@internal@token:positioned())) -> {ok,
        list(glsql@internal@token:positioned())} |
    {error, nil}.
match_words(Words, Tokens) ->
    case {Words, Tokens} of
        {[], _} ->
            {ok, Tokens};

        {[Want | Rest_words], [{positioned, {word, W}, _, _} | Rest]} ->
            case string:lowercase(W) =:= Want of
                true ->
                    match_words(Rest_words, Rest);

                false ->
                    {error, nil}
            end;

        {_, _} ->
            {error, nil}
    end.

-file("src/glsql/internal/parser.gleam", 508).
?DOC(false).
-spec first_matching_name(
    binary(),
    list(list(binary())),
    list(glsql@internal@token:positioned())
) -> {binary(), list(glsql@internal@token:positioned())}.
first_matching_name(Name, Candidates, Tokens) ->
    case Candidates of
        [] ->
            {Name, Tokens};

        [Words | Others] ->
            Wanted = gleam@list:drop(Words, 1),
            case match_words(Wanted, Tokens) of
                {ok, Rest} ->
                    {gleam@string:join([Name | Wanted], <<" "/utf8>>), Rest};

                {error, nil} ->
                    first_matching_name(Name, Others, Tokens)
            end
    end.

-file("src/glsql/internal/parser.gleam", 496).
?DOC(false).
-spec extend_type_name(binary(), list(glsql@internal@token:positioned())) -> {binary(),
    list(glsql@internal@token:positioned())}.
extend_type_name(Name, Tokens) ->
    Lowered = string:lowercase(Name),
    Candidates = gleam@list:filter(
        [[<<"timestamp"/utf8>>,
                <<"with"/utf8>>,
                <<"time"/utf8>>,
                <<"zone"/utf8>>],
            [<<"timestamp"/utf8>>,
                <<"without"/utf8>>,
                <<"time"/utf8>>,
                <<"zone"/utf8>>],
            [<<"time"/utf8>>, <<"with"/utf8>>, <<"time"/utf8>>, <<"zone"/utf8>>],
            [<<"time"/utf8>>,
                <<"without"/utf8>>,
                <<"time"/utf8>>,
                <<"zone"/utf8>>],
            [<<"character"/utf8>>, <<"varying"/utf8>>],
            [<<"bit"/utf8>>, <<"varying"/utf8>>],
            [<<"double"/utf8>>, <<"precision"/utf8>>]],
        fun(Words) -> case Words of
                [First | _] ->
                    First =:= Lowered;

                [] ->
                    false
            end end
    ),
    first_matching_name(Name, Candidates, Tokens).

-file("src/glsql/internal/parser.gleam", 482).
?DOC(false).
-spec qualified_type_name(list(glsql@internal@token:positioned())) -> {ok,
        {gleam@option:option(binary()),
            binary(),
            integer(),
            list(glsql@internal@token:positioned())}} |
    {error, glsql@internal@error:error()}.
qualified_type_name(Tokens) ->
    gleam@result:'try'(
        identifier(Tokens),
        fun(_use0) ->
            {First, Pos, Rest} = _use0,
            case Rest of
                [{positioned, dot, _, _} | Rest@1] ->
                    gleam@result:'try'(
                        identifier(Rest@1),
                        fun(_use0@1) ->
                            {Second, _, Rest@2} = _use0@1,
                            {ok, {{some, First}, Second, Pos, Rest@2}}
                        end
                    );

                _ ->
                    {ok, {none, First, Pos, Rest}}
            end
        end
    ).

-file("src/glsql/internal/parser.gleam", 464).
?DOC(false).
-spec parse_type(list(glsql@internal@token:positioned())) -> {ok,
        {glsql@internal@ast:sql_type(), list(glsql@internal@token:positioned())}} |
    {error, glsql@internal@error:error()}.
parse_type(Tokens) ->
    gleam@result:'try'(
        qualified_type_name(Tokens),
        fun(_use0) ->
            {_, Name, Pos, Rest} = _use0,
            gleam@result:'try'(
                parse_type_args(Rest),
                fun(_use0@1) ->
                    {Args, Rest@1} = _use0@1,
                    {Name@1, Rest@2} = extend_type_name(Name, Rest@1),
                    gleam@result:'try'(case Args of
                            [] ->
                                parse_type_args(Rest@2);

                            _ ->
                                {ok, {Args, Rest@2}}
                        end, fun(_use0@2) ->
                            {Args@1, Rest@3} = _use0@2,
                            {Dims, Rest@4} = parse_array_dims(Rest@3, 0),
                            {ok,
                                {{sql_type, Name@1, Args@1, Dims, Pos}, Rest@4}}
                        end)
                end
            )
        end
    ).

-file("src/glsql/internal/parser.gleam", 170).
?DOC(false).
-spec parse_column(list(glsql@internal@token:positioned())) -> {ok,
        {glsql@internal@ast:column(), list(glsql@internal@token:positioned())}} |
    {error, glsql@internal@error:error()}.
parse_column(Tokens) ->
    gleam@result:'try'(
        identifier(Tokens),
        fun(_use0) ->
            {Name, Pos, Rest} = _use0,
            gleam@result:'try'(
                parse_type(Rest),
                fun(_use0@1) ->
                    {Sql_type, Rest@1} = _use0@1,
                    gleam@result:'try'(
                        parse_column_constraints(Rest@1, []),
                        fun(_use0@2) ->
                            {Constraints, Rest@2} = _use0@2,
                            {ok,
                                {{column,
                                        Name,
                                        Sql_type,
                                        lists:reverse(Constraints),
                                        Pos},
                                    Rest@2}}
                        end
                    )
                end
            )
        end
    ).

-file("src/glsql/internal/parser.gleam", 313).
?DOC(false).
-spec skip_constraint_name(list(glsql@internal@token:positioned())) -> list(glsql@internal@token:positioned()).
skip_constraint_name(Tokens) ->
    case Tokens of
        [{positioned, {word, W}, _, _} | Rest] ->
            case string:lowercase(W) of
                <<"constraint"/utf8>> ->
                    case Rest of
                        [{positioned, {word, _}, _, _} | Rest@1] ->
                            Rest@1;

                        [{positioned, {quoted_ident, _}, _, _} | Rest@2] ->
                            Rest@2;

                        _ ->
                            Rest
                    end;

                _ ->
                    Tokens
            end;

        _ ->
            Tokens
    end.

-file("src/glsql/internal/parser.gleam", 302).
?DOC(false).
-spec continue_table_constraints(
    list(glsql@internal@token:positioned()),
    list(glsql@internal@ast:table_constraint())
) -> {ok,
        {list(glsql@internal@ast:table_constraint()),
            list(glsql@internal@token:positioned())}} |
    {error, glsql@internal@error:error()}.
continue_table_constraints(Tokens, Acc) ->
    case Tokens of
        [{positioned, comma, _, _} | Rest] ->
            parse_table_constraints(Rest, Acc);

        _ ->
            {ok, {lists:reverse(Acc), Tokens}}
    end.

-file("src/glsql/internal/parser.gleam", 249).
?DOC(false).
-spec parse_table_constraints(
    list(glsql@internal@token:positioned()),
    list(glsql@internal@ast:table_constraint())
) -> {ok,
        {list(glsql@internal@ast:table_constraint()),
            list(glsql@internal@token:positioned())}} |
    {error, glsql@internal@error:error()}.
parse_table_constraints(Tokens, Acc) ->
    Tokens@1 = skip_constraint_name(Tokens),
    case Tokens@1 of
        [{positioned, {word, W}, Pos, _} | Rest] ->
            case string:lowercase(W) of
                <<"primary"/utf8>> ->
                    gleam@result:'try'(
                        keyword(Rest, <<"key"/utf8>>),
                        fun(_use0) ->
                            {_, Rest@1} = _use0,
                            gleam@result:'try'(
                                optional_column_list(Rest@1),
                                fun(_use0@1) ->
                                    {Cols, Rest@2} = _use0@1,
                                    continue_table_constraints(
                                        Rest@2,
                                        [{table_primary_key, Cols, Pos} | Acc]
                                    )
                                end
                            )
                        end
                    );

                <<"unique"/utf8>> ->
                    gleam@result:'try'(
                        optional_column_list(Rest),
                        fun(_use0@2) ->
                            {Cols@1, Rest@3} = _use0@2,
                            continue_table_constraints(
                                Rest@3,
                                [{table_unique, Cols@1, Pos} | Acc]
                            )
                        end
                    );

                <<"foreign"/utf8>> ->
                    gleam@result:'try'(
                        keyword(Rest, <<"key"/utf8>>),
                        fun(_use0@3) ->
                            {_, Rest@4} = _use0@3,
                            gleam@result:'try'(
                                optional_column_list(Rest@4),
                                fun(_use0@4) ->
                                    {Cols@2, Rest@5} = _use0@4,
                                    gleam@result:'try'(
                                        keyword(Rest@5, <<"references"/utf8>>),
                                        fun(_use0@5) ->
                                            {_, Rest@6} = _use0@5,
                                            gleam@result:'try'(
                                                qualified_name(Rest@6),
                                                fun(_use0@6) ->
                                                    {_, Tbl, Rest@7} = _use0@6,
                                                    gleam@result:'try'(
                                                        optional_column_list(
                                                            Rest@7
                                                        ),
                                                        fun(_use0@7) ->
                                                            {Ref, Rest@8} = _use0@7,
                                                            continue_table_constraints(
                                                                Rest@8,
                                                                [{table_foreign_key,
                                                                        Cols@2,
                                                                        Tbl,
                                                                        Ref,
                                                                        Pos} |
                                                                    Acc]
                                                            )
                                                        end
                                                    )
                                                end
                                            )
                                        end
                                    )
                                end
                            )
                        end
                    );

                <<"check"/utf8>> ->
                    {Expr, Rest@9} = take_expression(Rest, <<""/utf8>>, 0),
                    continue_table_constraints(
                        Rest@9,
                        [{table_check, Expr, Pos} | Acc]
                    );

                Other ->
                    {error,
                        {parse_error,
                            <<<<"Unknown table constraint `"/utf8, W/binary>>/binary,
                                "`"/utf8>>,
                            Pos,
                            glsql@internal@suggest:closest(
                                Other,
                                [<<"not"/utf8>>,
                                    <<"null"/utf8>>,
                                    <<"primary"/utf8>>,
                                    <<"unique"/utf8>>,
                                    <<"default"/utf8>>,
                                    <<"references"/utf8>>,
                                    <<"check"/utf8>>,
                                    <<"constraint"/utf8>>,
                                    <<"foreign"/utf8>>,
                                    <<"generated"/utf8>>,
                                    <<"collate"/utf8>>]
                            )}}
            end;

        [{positioned, T, Pos@1, _} | _] ->
            {error,
                {parse_error,
                    <<<<"Expected a table constraint, found `"/utf8,
                            (glsql@internal@token:to_string(T))/binary>>/binary,
                        "`"/utf8>>,
                    Pos@1,
                    none}};

        [] ->
            {error,
                {parse_error,
                    <<"Unexpected end of file in table constraints"/utf8>>,
                    0,
                    none}}
    end.

-file("src/glsql/internal/parser.gleam", 159).
?DOC(false).
-spec is_table_constraint(list(glsql@internal@token:positioned())) -> boolean().
is_table_constraint(Tokens) ->
    case Tokens of
        [{positioned, {word, W}, _, _} | _] ->
            case string:lowercase(W) of
                <<"primary"/utf8>> ->
                    true;

                <<"unique"/utf8>> ->
                    true;

                <<"foreign"/utf8>> ->
                    true;

                <<"check"/utf8>> ->
                    true;

                <<"constraint"/utf8>> ->
                    true;

                _ ->
                    false
            end;

        _ ->
            false
    end.

-file("src/glsql/internal/parser.gleam", 137).
?DOC(false).
-spec parse_column_list(
    list(glsql@internal@token:positioned()),
    list(glsql@internal@ast:column())
) -> {ok,
        {list(glsql@internal@ast:column()),
            list(glsql@internal@ast:table_constraint()),
            list(glsql@internal@token:positioned())}} |
    {error, glsql@internal@error:error()}.
parse_column_list(Tokens, Acc) ->
    case is_table_constraint(Tokens) of
        true ->
            gleam@result:'try'(
                parse_table_constraints(Tokens, []),
                fun(_use0) ->
                    {Constraints, Rest} = _use0,
                    {ok, {Acc, Constraints, Rest}}
                end
            );

        false ->
            gleam@result:'try'(
                parse_column(Tokens),
                fun(_use0@1) ->
                    {Column, Rest@1} = _use0@1,
                    case Rest@1 of
                        [{positioned, comma, _, _} | Rest@2] ->
                            parse_column_list(Rest@2, [Column | Acc]);

                        _ ->
                            {ok, {[Column | Acc], [], Rest@1}}
                    end
                end
            )
    end.

-file("src/glsql/internal/parser.gleam", 569).
?DOC(false).
-spec skip_if_not_exists(list(glsql@internal@token:positioned())) -> list(glsql@internal@token:positioned()).
skip_if_not_exists(Tokens) ->
    case Tokens of
        [{positioned, {word, A}, _, _},
            {positioned, {word, B}, _, _},
            {positioned, {word, C}, _, _} |
            Rest] ->
            case {string:lowercase(A), string:lowercase(B), string:lowercase(C)} of
                {<<"if"/utf8>>, <<"not"/utf8>>, <<"exists"/utf8>>} ->
                    Rest;

                {_, _, _} ->
                    Tokens
            end;

        _ ->
            Tokens
    end.

-file("src/glsql/internal/parser.gleam", 113).
?DOC(false).
-spec parse_create_table(list(glsql@internal@token:positioned())) -> {ok,
        {glsql@internal@ast:table(), list(glsql@internal@token:positioned())}} |
    {error, glsql@internal@error:error()}.
parse_create_table(Tokens) ->
    gleam@result:'try'(
        keyword(Tokens, <<"create"/utf8>>),
        fun(_use0) ->
            {Pos, Rest} = _use0,
            gleam@result:'try'(
                keyword(Rest, <<"table"/utf8>>),
                fun(_use0@1) ->
                    {_, Rest@1} = _use0@1,
                    Rest@2 = skip_if_not_exists(Rest@1),
                    gleam@result:'try'(
                        qualified_name(Rest@2),
                        fun(_use0@2) ->
                            {Schema, Name, Rest@3} = _use0@2,
                            gleam@result:'try'(
                                expect(Rest@3, l_paren, <<"("/utf8>>),
                                fun(_use0@3) ->
                                    {_, Rest@4} = _use0@3,
                                    gleam@result:'try'(
                                        parse_column_list(Rest@4, []),
                                        fun(_use0@4) ->
                                            {Columns, Constraints, Rest@5} = _use0@4,
                                            gleam@result:'try'(
                                                expect(
                                                    Rest@5,
                                                    r_paren,
                                                    <<")"/utf8>>
                                                ),
                                                fun(_use0@5) ->
                                                    {_, Rest@6} = _use0@5,
                                                    Rest@7 = skip_statement(
                                                        Rest@6
                                                    ),
                                                    {ok,
                                                        {{table,
                                                                Name,
                                                                Schema,
                                                                lists:reverse(
                                                                    Columns
                                                                ),
                                                                Constraints,
                                                                Pos},
                                                            Rest@7}}
                                                end
                                            )
                                        end
                                    )
                                end
                            )
                        end
                    )
                end
            )
        end
    ).

-file("src/glsql/internal/parser.gleam", 39).
?DOC(false).
-spec parse_statements(
    list(glsql@internal@token:positioned()),
    list(glsql@internal@ast:table())
) -> {ok, list(glsql@internal@ast:table())} |
    {error, glsql@internal@error:error()}.
parse_statements(Tokens, Acc) ->
    case Tokens of
        [] ->
            {ok, Acc};

        [{positioned, semicolon, _, _} | Rest] ->
            parse_statements(Rest, Acc);

        [{positioned, {symbol, <<"\\"/utf8>>}, _, _} | Rest@1] ->
            parse_statements(skip_statement(Rest@1), Acc);

        [{positioned, {word, W}, Pos, _} | Rest@2] ->
            case string:lowercase(W) of
                <<"create"/utf8>> ->
                    case Rest@2 of
                        [{positioned, {word, Obj}, Obj_pos, _} | After] ->
                            case string:lowercase(Obj) of
                                <<"table"/utf8>> ->
                                    gleam@result:'try'(
                                        parse_create_table(Tokens),
                                        fun(_use0) ->
                                            {Table, Rest@3} = _use0,
                                            parse_statements(
                                                Rest@3,
                                                [Table | Acc]
                                            )
                                        end
                                    );

                                Other ->
                                    case gleam@list:contains(
                                        [<<"index"/utf8>>,
                                            <<"unique"/utf8>>,
                                            <<"extension"/utf8>>,
                                            <<"sequence"/utf8>>,
                                            <<"view"/utf8>>,
                                            <<"schema"/utf8>>,
                                            <<"function"/utf8>>,
                                            <<"trigger"/utf8>>,
                                            <<"type"/utf8>>,
                                            <<"domain"/utf8>>,
                                            <<"materialized"/utf8>>,
                                            <<"publication"/utf8>>,
                                            <<"policy"/utf8>>,
                                            <<"aggregate"/utf8>>,
                                            <<"operator"/utf8>>,
                                            <<"role"/utf8>>,
                                            <<"database"/utf8>>],
                                        Other
                                    ) of
                                        true ->
                                            parse_statements(
                                                skip_statement(After),
                                                Acc
                                            );

                                        false ->
                                            {error,
                                                {unknown_statement,
                                                    Obj,
                                                    Obj_pos,
                                                    glsql@internal@suggest:closest(
                                                        Other,
                                                        [<<"table"/utf8>> |
                                                            [<<"index"/utf8>>,
                                                                <<"unique"/utf8>>,
                                                                <<"extension"/utf8>>,
                                                                <<"sequence"/utf8>>,
                                                                <<"view"/utf8>>,
                                                                <<"schema"/utf8>>,
                                                                <<"function"/utf8>>,
                                                                <<"trigger"/utf8>>,
                                                                <<"type"/utf8>>,
                                                                <<"domain"/utf8>>,
                                                                <<"materialized"/utf8>>,
                                                                <<"publication"/utf8>>,
                                                                <<"policy"/utf8>>,
                                                                <<"aggregate"/utf8>>,
                                                                <<"operator"/utf8>>,
                                                                <<"role"/utf8>>,
                                                                <<"database"/utf8>>]]
                                                    )}}
                                    end
                            end;

                        _ ->
                            {error,
                                {parse_error,
                                    <<"Unexpected end of file after `create`"/utf8>>,
                                    Pos,
                                    none}}
                    end;

                Other@1 ->
                    case gleam@list:contains(
                        [<<"alter"/utf8>>,
                            <<"drop"/utf8>>,
                            <<"set"/utf8>>,
                            <<"comment"/utf8>>,
                            <<"grant"/utf8>>,
                            <<"revoke"/utf8>>,
                            <<"begin"/utf8>>,
                            <<"commit"/utf8>>,
                            <<"insert"/utf8>>,
                            <<"update"/utf8>>,
                            <<"delete"/utf8>>,
                            <<"select"/utf8>>,
                            <<"truncate"/utf8>>,
                            <<"analyze"/utf8>>,
                            <<"vacuum"/utf8>>,
                            <<"refresh"/utf8>>,
                            <<"reset"/utf8>>,
                            <<"with"/utf8>>],
                        Other@1
                    ) of
                        true ->
                            parse_statements(skip_statement(Rest@2), Acc);

                        false ->
                            {error,
                                {unknown_statement,
                                    W,
                                    Pos,
                                    glsql@internal@suggest:closest(
                                        Other@1,
                                        [<<"create"/utf8>>,
                                            <<"alter"/utf8>>,
                                            <<"drop"/utf8>>,
                                            <<"set"/utf8>>,
                                            <<"comment"/utf8>>]
                                    )}}
                    end
            end;

        [{positioned, T, Pos@1, _} | _] ->
            {error,
                {parse_error,
                    <<<<"Expected a statement, found `"/utf8,
                            (glsql@internal@token:to_string(T))/binary>>/binary,
                        "`"/utf8>>,
                    Pos@1,
                    none}}
    end.

-file("src/glsql/internal/parser.gleam", 34).
?DOC(false).
-spec parse(list(glsql@internal@token:positioned())) -> {ok,
        glsql@internal@ast:schema_ast()} |
    {error, glsql@internal@error:error()}.
parse(Tokens) ->
    gleam@result:'try'(
        parse_statements(Tokens, []),
        fun(Tables) -> {ok, {schema_ast, lists:reverse(Tables)}} end
    ).