#include "collection.h"
#include "parse.h"
#include <assert.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(int argc, char* argv[])
{
    if (argc < 2) {
        fprintf(stderr, "error: no filename\n");
        return EXIT_FAILURE;
    }
    char* filename = argv[1];
    char* text = read_textfile(filename);
    if (!text) {
        return EXIT_FAILURE;
    }

    printf("--- text ---\n%s\n", text);

    Arena tok_arena;
    arena_init(&tok_arena, 4096);

    Preproc* preproc = preproc_new(strdup(filename), text, &tok_arena);

    TokStream tokstream;
    tokstream_init(&tokstream, preproc, &tok_arena);

    printf("--- tokens ---\n");

    Loc loc = { 1, 1 };
    Tok tok;
    while ((tok = tokstream_next(&tokstream)).ty != Tok_Eof) {
        // printf("%s\t%s\n", tokty_str(tok.ty), tok.text);
        Loc tok_loc = tok.loc;
        if (loc.line > tok_loc.line) {
            loc.line = 0;
        }
        while (loc.line < tok_loc.line) {
            printf("\n");
            loc.line += 1;
            loc.col = 1;
        }
        while (loc.col < tok_loc.col) {
            printf(" ");
            loc.col += 1;
        }
        printf("%s", tok.text);
        loc.line = tok_loc.line;
        loc.col = tok_loc.col + strlen(tok.text);
    }
    fputs("\n", stdout);

    preproc_free(preproc);
    arena_deinit(&tok_arena);
}