#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#define MAX 200

void
pad(char *site, char *p)
{
	char date[11], lyrline[MAX], name[32];
	char lyrfn[64] = "lyrics/";
	char url[64] = "https://files.catbox.moe/";
	int year, month, day, i;
	FILE *lyrics;
	char *humonth[] = {
		"mystery",
		"january",
		"february",
		"march",
		"april",
		"may",
		"june",
		"july",
		"august",
		"september",
		"october",
		"november",
		"december"
	};

	for ( i = 0; i < 10; ++i )
		date[i] = p[i];
	date[10] = '\0';

	year = (date[0] - 0x30) * 1000;
	year += (date[1] - 0x30) * 100;
	year += (date[2] - 0x30) * 10;
	year += date[3] - 0x30;

	month = (date[5] - 0x30) * 10;
	month += date[6] - 0x30;

	day = (date[8] - 0x30) * 10;
	day += date[9] - 0x30;

	p = strstr(p, "--") + 2;

	i = 1;
	while ( ( p[i] == '-' && p[i-1] == '-' ) == 0 ) {
		name[i-1] = p[i-1];
		++i;
	}
	name[i-1] = '\0';

	p = strstr(p, "SLASH") + 5;
	strcat(url, p);

	printf("\t\t\t%s\n", "<h2>");
	printf( "\t\t\t\t%d ", year);
	printf("%s %d\n", humonth[month], day);
	printf("\t\t\t%s\n", "</h2>");

	printf("\t\t\t%s\n", "<div>");
	printf("\t\t\t\t%s%s", "<audio src=\"", url);
	printf("%s\n", "\" controls=\"controls\">");
	printf("\t\t\t\t\t%s %s\n", "playable from", url);
	printf("\t\t\t\t%s\n", "</audio>");
	printf("\t\t\t\t%s%s%s", "<a href=\"", site, "Image/");
	printf("%s%s\n", name, ".png\" target=\"_blank\">");
	printf("\t\t\t\t\t%s%s%s", "<img src=\"", site, "Image/");
	printf("%s%s %s ", name, ".png\"", "loading=\"lazy\"");
	printf("%s\n\t\t\t\t%s\n", "class=\"cover\">", "</a>");
	printf("\t\t\t\t%s\n", "<p>");

	strcat(lyrfn, name);
	strcat(lyrfn, ".txt");
	lyrics = fopen(lyrfn, "r");
	if (lyrics == NULL)
		puts("RAW!");
	else
		while (fgets(lyrline, MAX, lyrics) != NULL) {
			printf("\t\t\t\t\t%s", lyrline);
			printf("\t\t\t\t\t%s\n", "<br>");
		}

	fclose(lyrics);
	printf("\t\t\t\t%s\n", "</p>");

	printf("\t\t\t</div>\n");
}

int main()
{
	FILE* in = fopen("files.json", "r");
	FILE* header = fopen("header/composed.txt", "r");
	FILE* footer = fopen("footer/composed.txt", "r");
	char line[MAX], buffer[MAX];
	char site[32] = "https://kaa.neocities.org/";
	char pattern[32] = "Link/", end[32] = ".txt\",";
	int patlen = strlen(pattern);
	int endlen = strlen(end);
	int ch, cnt, len;
	char *p;

	if ( (in == NULL) || (header == NULL) || (footer == NULL) ) {
		puts("That's pungent!");
		return 1;
	}

	while (fgets(line, MAX, header) != NULL)
		printf("%s", line);
	fclose(header);

	fseek(in, 0, SEEK_END);
	while ( fseek(in, -2, SEEK_CUR) != -1 ) {
		ch = fgetc(in);
		for ( cnt = 0; ch != '\n' && ftell(in) > 1; ++cnt ) {
			fseek(in, -2, SEEK_CUR);
			line[cnt] = ch;
			ch = fgetc(in);
		}
		line[cnt] = ch;

		for (len = cnt; cnt >= 0; --cnt)
			buffer[len - cnt] = line[cnt];
		buffer[len] = '\0';

		if ( ( p = strstr(buffer, pattern) ) != NULL) {
			p += patlen;
			p[ strlen(p) - endlen + 1 ] = '\0';
			pad(site, p);
		}
	}
	fclose(in);

	while (fgets(line, MAX, footer) != NULL)
		printf("%s", line);
	fclose(footer);

	return 0;
}