/** @license 2023 Neil Edelman, distributed under the terms of the
 [MIT License](https://opensource.org/licenses/MIT).

 Date _vs_ hours flown. */

#include "journal.h"
#include "flight.h"
#include "source.h"
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
#include <errno.h>
#include <inttypes.h>

int main(void) {
	int success = EXIT_SUCCESS;
	errno = 0;
	struct journal j = journal();
	struct sources s = sources(&j);
	struct flights f = flights(&j);

	if(errno) goto catch;
	fprintf(stderr, "Journal: %s.\n"
		"Flights: %s.\n", journal_to_string(&j), flights_to_string(&f));
	printf("set term postscript eps enhanced\n"
		"set output \"flighthours.eps\"\n"
		"$Data <<EOD\n"
		"# date\tsource\treg\tsic\tpic\ttotal\n");
	struct flights_iterator it = flights_iterator(&f);
	union line64 line;
	const struct flight *flight;
	uint32_t total = 0;
	while(flights_next(&it, &line, &flight)) {
		char datestr[12];
		date32_to_string(line.date, &datestr);
		const struct source *src = source_lookup(&s, line);
		assert(src); if(!src->name.a) { errno = EDOM; goto catch; }
		printf("%s\t%.*s\t",
			datestr, (int)(src->name.b - src->name.a), src->name.a);
		assert(flight); switch(flight->type) {
		case GLIDER:
			total += flight->glider.dual_min + flight->glider.pilot_min
				+ flight->glider.instr_min;
			printf("%.*s\t%" PRIu32 "\t%" PRIu32 "\t%" PRIu32 "\n",
				(int)(flight->glider.reg.b - flight->glider.reg.a),
				flight->glider.reg.a,
				flight->glider.dual_min,
				flight->glider.pilot_min + flight->glider.instr_min,
				total);
			break;
		case POWER:
			total += flight->power.dual_min + flight->power.pilot_min;
			printf("%.*s\t%" PRIu32 "\t%" PRIu32 "\t%" PRIu32 "\n",
				(int)(flight->power.reg.b - flight->power.reg.a),
				flight->power.reg.a,
				flight->power.dual_min,
				flight->power.pilot_min,
				total);
			break;
		}
	}
	printf("EOD\n"
		"set monochrome\n"
		"set xdata time\n"
		"set timefmt \"%%Y-%%m-%%d\"\n"
		"set xtics format \"%%Y-%%m-%%d\" rotate by -30\n"
		"set ylabel \"hours\"\n"
		"set grid\n"
		"unset key\n"
		"unset border\n"
		"set xrange [*:'2001-09-11']\n"
		"#set style fill solid 0.1 #pattern 5 (better, but restarts)\n"
		"plot $Data using 1:($6/60) with fillsteps lw 2\n");
	goto finally;
catch:
	success = EXIT_FAILURE;
	perror("flights");
finally:
	flights_(&f);
	sources_(&s);
	journal_(&j);
	return success;
}