package main

import (
	"math/rand"
	"strconv"
)

type Match struct {
	host      *Client
	guest     *Client
	round     int
	itemCount int
	gun       Gun
	Guestturn bool
}

func (m *Match) LoadGun() {
	switch m.round {
	case 1:
		m.gun.magazine = m.gun.Reload(4)
		break
	case 2:
		m.gun.magazine = m.gun.Reload(8)
		break
	case 3:
		m.gun.magazine = m.gun.Reload(16)
		break
	default:
		m.gun.magazine = m.gun.Reload(1)
		break
	}
}

func (m *Match) Start() {
	m.NextRound()
}

func (m *Match) resetHP() {
	switch m.round {
	case 1:
		m.host.HP = 5
		m.guest.HP = 5
		break
	case 2:
		m.host.HP = 2
		m.guest.HP = 2
		break
	case 3:
		m.host.HP = 4
		m.guest.HP = 4
		break
	default:
		m.host.HP = 1
		m.guest.HP = 1
		break
	}
}

func (m *Match) announceRounds() {
	live := 0
	blank := 0
	for _, round := range m.gun.magazine {
		if round {
			live++
		} else {
			blank++
		}
	}

	doubled := "Shotgun is normal"

	if m.gun.doubled {
		doubled = "Shotgun is doubled"
	}

	m.Send("\r\nRounds are:\r\nLive - " + strconv.Itoa(live) + "\r\nBlank - " + strconv.Itoa(blank) + "\r\n" + doubled)
}

func (m *Match) announceHP() {
	m.Send("\r\nHPs are:\r\n" +
		m.host.Username + "(" + strconv.Itoa(m.host.ID) + ")" + " - " + strconv.Itoa(m.host.HP) + "\r\n" +
		m.guest.Username + "(" + strconv.Itoa(m.guest.ID) + ")" + " - " + strconv.Itoa(m.guest.HP))
}

func (m *Match) giveItems() {
	count := 0
	switch m.round {
	case 2:
		count = 2
		break
	case 3:
		count = 3
		break
	}

	for i := 0; i < count; i++ {
		m.host.items = append(m.host.items, Item{
			kind:  rand.Intn(m.itemCount), //currently only item 0 exists
			match: m,
			owner: m.host,
		})
		m.guest.items = append(m.host.items, Item{
			kind:  rand.Intn(m.itemCount), //currently only item 0 exists
			match: m,
			owner: m.guest,
		})
	}
}

func (m *Match) announceItems() {
	out := ""
	for i := 0; i < len(m.host.items); i++ {
		name := m.host.items[i].name()
		out += strconv.Itoa(i) + " - " + name + "\r\n"
	}
	m.SendMessage("My items:\r\n"+out, m.host)

	out = ""
	for i := 0; i < len(m.guest.items); i++ {
		name := m.guest.items[i].name()
		out += strconv.Itoa(i) + " - " + name + "\r\n"
	}
	m.SendMessage("My items:\r\n"+out, m.guest)
}

func (m *Match) NextRound() bool {
	defer m.announceItems()
	defer m.announceRounds()
	defer m.announceHP()
	defer m.LoadGun()
	defer m.resetHP()
	defer m.giveItems()
	if m.round < 3 {
		m.round++
	} else if m.round == 3 {
		return true //final
	}
	return false
}

func (m *Match) Send(message string) {
	m.host.sendMessage(message, m.host)
	m.guest.sendMessage(message, m.guest)
}

func (m *Match) SendMessage(message string, sender *Client) {
	m.host.sendMessage(message, sender)
	m.guest.sendMessage(message, sender)
}

func (m *Match) announceTurn() {
	if m.Guestturn {
		m.guest.sendMessage("It is your turn to shoot", m.host)
	} else {
		m.host.sendMessage("It is your turn to shoot", m.guest)
	}
}

func (m *Match) CheckStatus() {
	if m.host.HP < 1 {
		m.SendMessage("I died", m.host)
		m.SendMessage("I won", m.guest)
	}
	if m.guest.HP < 1 {
		m.SendMessage("I died", m.guest)
		m.SendMessage("I won", m.host)
	}
	if m.host.HP > 0 && m.guest.HP > 0 {
		if m.round >= 3 {
			m.SendMessage("I won", m.host)
			m.SendMessage("I won", m.guest)
		} else {
			m.announceTurn()
		}
	}
	if len(m.gun.magazine) == 0 {
		m.NextRound()
	}
}