#include "report.h"
#include <stdio.h>

void print_report_loc(
    const char* filename, const char* text, size_t text_len, Loc loc)
{
    size_t line_start = loc.idx;
    while (line_start > 0 && text[line_start] != '\n') {
        line_start -= 1;
    }
    if (text[line_start] == '\n') {
        line_start += 1;
    }
    size_t line_end = loc.idx + 1;
    while (line_end < text_len && text[line_end] != '\n') {
        line_end += 1;
    }
    const char* line = &text[line_start];
    int line_len = (int)line_end - (int)line_start;

    fprintf(stderr,
        "    \x1b[96m--> ./%s:%d:%d\n     "
        "\x1b[37m|\n\x1b[96m%5d\x1b[37m|%.*s\n     "
        "|%*c\x1b[1;91m^\x1b[0m\n",
        filename,
        loc.line,
        loc.col,
        loc.line,
        line_len,
        line,
        loc.col - 1,
        ' ');
}

void reporter_print_loc(Reporter* rep, Loc loc)
{
    print_report_loc(rep->filename, rep->text, rep->text_len, loc);
}

void reporter_error_with_loc(Reporter* rep, const char* msg, Loc loc)
{
    REPORTF_ERROR("%s", msg);
    reporter_print_loc(rep, loc);
}