#include "syntax.h"

#include <bshell/ast.h>
#include <bshell/parse/lex.h>
#include <bshell/parse/parse.h>
#include <bshell/parse/token.h>
#include <stdio.h>
#include <string.h>

enum bshell_status bshell_parse_ctx_init(struct bshell_parse_ctx *ctx, struct bshell_lex_ctx *src)
{
	memset(ctx, 0x0, sizeof *ctx);

	ctx->p_src = src;

	return BSHELL_SUCCESS;
}

void bshell_parse_ctx_cleanup(struct bshell_parse_ctx *ctx)
{
}

struct bshell_ast_node *bshell_parse_ctx_read_node(struct bshell_parse_ctx *ctx)
{
	parse_symbol(ctx, BSHELL_SYM_SEMICOLON);
	parse_linefeed(ctx);

	struct bshell_ast_node *result = NULL;
	bool ok = parse_statement(ctx, &result);

	return ok ? result : NULL;
}

void report_error(struct bshell_parse_ctx *ctx, const char *format, ...)
{
	ctx->p_status = BSHELL_ERR_BAD_SYNTAX;
	fprintf(stderr, "PARSE: ");

	va_list arg;
	va_start(arg, format);
	vfprintf(stderr, format, arg);
	va_end(arg);

	fprintf(stderr, "\n");

	struct bshell_lex_token *tok = peek_token(ctx);
	fprintf(stderr, "  peek_token = ");
#if 0
	if (tok) {
		print_bshell_lex_token(tok);
	} else {
		fprintf(stderr, " EOF\n");
	}
#endif
}