#ifndef PARSE_SYNTAX_H_
#define PARSE_SYNTAX_H_

#include <bshell/ast.h>
#include <bshell/parse/lex.h>
#include <bshell/parse/parse.h>
#include <bshell/parse/token.h>
#include <bshell/runtime/operator.h>
#include <stdbool.h>
#include <stdio.h>

extern void report_error(struct bshell_parse_ctx *ctx, const char *format, ...);

extern struct bshell_lex_token *peek_token(struct bshell_parse_ctx *ctx);
extern enum bshell_lex_token_type peek_token_type(struct bshell_parse_ctx *ctx);
extern enum bshell_lex_keyword peek_unknown_keyword(struct bshell_parse_ctx *ctx);
extern enum bshell_lex_symbol peek_unknown_symbol(struct bshell_parse_ctx *ctx);

extern struct bshell_lex_token *claim_token(struct bshell_parse_ctx *ctx);
extern void discard_token(struct bshell_parse_ctx *ctx);

extern bool peek_linefeed(struct bshell_parse_ctx *ctx);
extern bool peek_symbol(struct bshell_parse_ctx *ctx, enum bshell_lex_symbol sym);
extern bool peek_word(struct bshell_parse_ctx *ctx, struct bshell_lex_token **out);
extern bool peek_int(struct bshell_parse_ctx *ctx);

extern bool parse_linefeed(struct bshell_parse_ctx *ctx);
extern bool parse_symbol(struct bshell_parse_ctx *ctx, enum bshell_lex_symbol sym);
extern bool parse_keyword(struct bshell_parse_ctx *ctx, enum bshell_lex_keyword kw);
extern bool parse_word(struct bshell_parse_ctx *ctx, struct bshell_lex_token **out);
extern bool parse_var(struct bshell_parse_ctx *ctx, struct bshell_lex_token **out);
extern bool parse_flag(struct bshell_parse_ctx *ctx, struct bshell_lex_token **out);

extern bool peek_arith_expr(struct bshell_parse_ctx *ctx);
extern bool parse_arith_value(
	struct bshell_parse_ctx *ctx,
	struct bshell_ast_node **out);
extern bool parse_arith_expr(
	struct bshell_parse_ctx *ctx,
	enum bshell_operator_precedence minimum_precedence,
	struct bshell_ast_node **out);

extern bool peek_keyword_expr(struct bshell_parse_ctx *ctx);
extern bool parse_keyword_expr(
	struct bshell_parse_ctx *ctx,
	struct bshell_ast_node **out);

extern bool parse_if(struct bshell_parse_ctx *ctx, struct bshell_ast_node **out);
extern bool parse_func(struct bshell_parse_ctx *ctx, struct bshell_ast_node **out);

extern bool parse_fstring(struct bshell_parse_ctx *ctx, struct bshell_ast_node **out);

extern bool parse_block(struct bshell_parse_ctx *ctx, struct bshell_ast_node **out);

extern bool peek_command(struct bshell_parse_ctx *ctx);
extern bool parse_pipeline(
	struct bshell_parse_ctx *ctx,
	struct bshell_ast_node *first_item,
	struct bshell_ast_node **out);
extern bool parse_command(struct bshell_parse_ctx *ctx, struct bshell_ast_node **out);
extern bool parse_cmdcall(struct bshell_parse_ctx *ctx, struct bshell_ast_node **out);
extern bool parse_redirect(struct bshell_parse_ctx *ctx, struct bshell_ast_node **out);

extern bool parse_expr(struct bshell_parse_ctx *ctx, struct bshell_ast_node **out);
extern bool peek_statement(struct bshell_parse_ctx *ctx);
extern bool parse_statement(
	struct bshell_parse_ctx *ctx,
	struct bshell_ast_node **out);
extern bool parse_statement_list(
	struct bshell_parse_ctx *ctx,
	struct bshell_ast_node **out);

#endif