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#include "board.h"
#include "checkouts.h"
#include "comp.h"
#include "curses.h"
#include "match.h"

#include <ncurses.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

void test_match(int start_points)
{
	struct leg *l = leg_init(start_points, NULL);

	while (l->rem > 0)
		comp_visit(l);

	printf("(%2d)       %3d\n", 0, l->start);
	for (int i = 0; i < l->n_visits; ++i) {
		struct visit *v = l->visits + i;
		printf("(%2d)  %3d  %3d", i+1, v->points, v->rem);

		for (int j = 0; j < v->n_darts; ++j) {
			char *n = segment_name(v->darts[j]);
			printf(j == 0 ? "  %4s" :" %4s", n);
			free(n);
		}
		printf("\n");
	}

	leg_free(l);
}

void user_visit(struct leg *l)
{
	if (l->n_visits == l->size_visits)
		leg_grow_visits(l);
	struct visit *v = l->visits + l->n_visits++;

	char status[100];
	int len = sprintf(status, " %s has %d remaining", l->name, l->rem);
	if (l->rem <= 170) {
		char *target = CHECKOUTS[2][l->rem-1];
		if (target) {
			int trem = l->rem - segment_points(
				segment_from_name(target));
			len += sprintf(status + len, " (%s", target);
			if (trem) {
				target = CHECKOUTS[1][trem-1];
				len += sprintf(status + len, "-%s", target);
				trem = trem - segment_points(
					segment_from_name(target));

				if (trem) {
					target = CHECKOUTS[0][trem-1];
					len += sprintf(status + len,
						"-%s", target);
				}
			}
			len += sprintf(status + len, ")");
		}
	}
	char prompt[] = " enter points> ";
	curses_status(status);
	curses_prompt(prompt);

	char buf[100] = { 0 };
	int buflen = 0;

	int c;
	while((c = wgetch(promptw)) != 10) {
		if (c == 127) {
			if (buflen > 0) {
				buf[--buflen] = 0;
				wmove(promptw, 0, sizeof(prompt) - 1 + buflen);
				wclrtoeol(promptw);
				wrefresh(promptw);
			}
		} else if (c >= '0' && c <= '9') {
			buf[buflen++] = c;
			wechochar(promptw, c);
		}
	}

	curses_prompt("");
	v->points = atoi(buf);
	l->rem -= v->points;
	v->rem = l->rem;
}

void curses_match(int start_points, char *n1, void (*f1)(struct leg *),
	char *n2, void (*f2)(struct leg *))
{
	init_curses();

	struct leg *l1 = leg_init(start_points, n1);
	struct leg *l2 = leg_init(start_points, n2);

	curses_draw(l1, l2);

	while (l1->rem > 0 && l2->rem > 0) {
		(*f1)(l1);
		curses_draw(l1, l2);

		if (l1->rem > 0)
			(*f2)(l2);

		curses_draw(l1, l2);
	}

	char status[100];
	sprintf(status, " %s wins", l1->rem <= 0 ? l1->name : l2->name);
	curses_status(status);

	leg_free(l1);
	leg_free(l2);
	wgetch(w);
	free_curses();
}

void cvc_curses_match(int start_points)
{
	curses_match(start_points, "Dartboat 1", comp_visit,
		"Dartboat 2", comp_visit);
}

void pvc_curses_match(int start_points)
{
	curses_match(start_points, "David", user_visit,
		"Dartboat", comp_visit);
}

void pvp_curses_match(int start_points)
{
	curses_match(start_points, "David", user_visit,
		"Davidn't", user_visit);
}

void test_averages()
{
	int rounds = 100000;

	for (int stdev = 4; stdev < 25; ++stdev) {
		horizontal_stdev = vertical_stdev = stdev;

		int darts = 0;
		for (int i = 0; i < rounds; ++i) {
			struct leg *l = leg_init(501, NULL);
			while (l->rem > 0)
				comp_visit(l);
			leg_free(l);

			darts += (l->n_visits - 1) * 3 +
				l->visits[l->n_visits-1].n_darts;
		}

		printf("%d %f\n", stdev, (double)(501*rounds)/darts*3);
	}
}

int main()
{
	srand(time(NULL));
	init_board();

	//cvc_curses_match(501);
	pvc_curses_match(501);
	//pvp_curses_match(501);
	test_match(501);
	//test_averages();

	return 0;
}