<?php

class Item_model extends MO_Model
{
  const MAX_EQUIPMENT = 20; //19, starts with zero

  function __construct()
  {
    parent::__construct();
  }

  //this will equip too if needed!
  function swap($d1, $d2, $d3, $d4)
  {
    //data validation
    if (!($d1 == 'iv' || $d1 == 'eq') || !($d3 == 'iv' || $d3 == 'eq') || !is_numeric($d2) ||
	!is_numeric($d4) || ($d2 < 0 || $d2 > (parent::INVENTORY_MAX - 1)) || 
	($d4 < 0 || $d4 > (parent::INVENTORY_MAX - 1)))
      return FALSE;

    //nothing needs to be done (same item twice)
    if (($d1 == $d3) && ($d2 == $d4))
      return TRUE;

    //hero has to be set from controller!
    if (!$this->hero)
      return 'Internal error';

    //just move in inventory
    if ($d1 == 'iv' && $d3 == 'iv')
    {
      $sql = "SELECT * FROM heros_inventory 
	WHERE container = 1 AND (slot = ? OR slot = ?) AND charid = ?";

      $q = $this->db->query($sql, array($d2, $d4, $this->hero['id']));

      $num = $q->num_rows();

      if (!$num)
	return FALSE;

      $res = $q->result_array();

      $item1 = $res[0];

      if ($num == 2)
	$item2 = $res[1];
      else
	$item2 = FALSE;

      if (!$item2)
      {
	$sql = "UPDATE heros_inventory
		SET slot = ?
		WHERE id = ?";

	if ($item1['slot'] == $d2)
	  $to = $d4;
	else
	  $to = $d2;

	$this->db->query($sql, array($to, $item1['id']));

	return TRUE;
      }

      //we only get here it two items needs to be swapped
      $sql = "UPDATE heros_inventory SET slot = ? WHERE id = ?";

      $this->db->query($sql, array($item1['slot'], $item2['id']));
      $this->db->query($sql, array($item2['slot'], $item1['id']));

      return TRUE;
    }

    //equipping has to be performed (iv/iv case already handled!)
    if ($d1 == 'iv')
      $d1 = 1;
    else
      $d1 = 2;

    if ($d3 == 'iv')
      $d3 = 1;
    else
      $d3 = 2;


    $sql = "SELECT heros_inventory.id AS invid,heros_inventory.is_soulbound,heros_inventory.stack_size,
		heros_inventory.container,heros_inventory.slot,hero_items.*
		FROM heros_inventory
		LEFT JOIN hero_items on heros_inventory.itemid = hero_items.id
		WHERE ((heros_inventory.container = ? AND heros_inventory.slot = ?) OR
		(heros_inventory.container = ? AND heros_inventory.slot = ?)) AND
		charid = ?";

    $q = $this->db->query($sql, array($d1, $d2, $d3, $d4, $this->hero['id']));

    $swap = FALSE;

    $num = $q->num_rows();
    
    if ($num == 2)
    {
      $res = $q->result_array();

      if ($res[0]['container'] == 1)
      {
	//0 is in bag
	$equip = $res[0];
	$deequip = $res[1];
      }
      elseif ($res[1]['container'] == 1)
      {
	//1 is in bag
	$equip = $res[1];
	$deequip = $res[0];
      }
      else
      {
	//swap
	$equip = $res[0];
	$deequip = $res[1];
	$swap = TRUE;
      }
    }
    else
    {
      $res = $q->row_array();

      if ($res['container'] == 1)
      {
	//not equipped, just equip it
	$equip = $res;
	$deequip = FALSE;

	if ($d1 == 1)
	  $equipslot = $d4;
	else
	  $equipslot = $d2;
      }
      else
      {
	if ($d1 == 2 && $d3 == 2)
	{
	  //switching between 2 equipslots, but one of them is empty
	  $equip = $res;
	  $deequip = FALSE;

	  if ($equip['slot'] == $d2)
	    $equipslot = $d4;
	  else
	    $equipslot = $d2;

	  $swap = TRUE;
	}
	else
	{
	  //equipped, just deequip it
	  $equip = FALSE;
	  $deequip = $res;
	  
	  if ($d1 == 2)
	    $deequipslot = $d4;
	  else
	    $deequipslot = $d2;
	}
      }
    }
    
    $this->load->helper('equipment');

    if ($equip)
    {
      //$cbe = can be equipped
      $cbe = can_be_equipped($equip, $this->hero);

      if (!isset($cbe))
	return "Internal error! $cbe is not set!";
    }

    //each of these functions has to return!

    //for switching items from inventory
    if ($equip && $deequip && !$swap)
    {
      if ($cbe['can'] === TRUE)
      {
	if ($cbe['allowed_slot1'] == $deequip['slot'] || $cbe['allowed_slot2'] == $deequip['slot'])
	  $equipslot = $deequip['slot'];

	if (!isset($equipslot))
	  return "That item cannot be equipped into that slot.";

	if ($cbe['two_handed'])
	{
	  $eq = $this->prep_two_hand();

	  if ($eq !== TRUE)
	    return $eq;
	}

	$this->hero_remove_stats($deequip);
	$this->hero_add_stats($equip);

	$sql = "UPDATE heros_inventory SET container = ?, slot = ? WHERE id = ?";

	//deequipping
	$this->db->query($sql, array(1, $equip['slot'], $deequip['invid']));

	//equip
	$this->db->query($sql, array(2, $equipslot, $equip['invid']));

	$this->calc_hero_stats();

	return TRUE;
      }
      else
      {
	return $cbe['message'];
      }
    }

    //switching between 2 slots
    if ($equip && $deequip && $swap)
    {
      if (!(($cbe['allowed_slot1'] == $equip['slot'] || $cbe['allowed_slot2'] == $equip['slot']) && 
	    ($cbe['allowed_slot1'] == $deequip['slot'] || $cbe['allowed_slot2'] == $deequip['slot'])))
	return "Those items cannot be swapped";

      $sql = "UPDATE heros_inventory SET slot = ? WHERE id = ?";

      $this->db->query($sql, array($equip['slot'], $deequip['invid']));
      $this->db->query($sql, array($deequip['slot'], $equip['invid']));

      return TRUE;
    }

    //just deequip
    if ($deequip && !$swap)
    {
      $sql = "UPDATE heros_inventory SET container = 1, slot = ? WHERE id = ?";

      $this->db->query($sql, array($deequipslot, $deequip['invid']));

      $this->hero_remove_stats($deequip);
      $this->calc_hero_stats();

      return TRUE;
    }

    //just equip
    if ($equip && !$swap)
    {
      if (!$cbe['can'])
	return $cbe['message'];

      if (!($cbe['allowed_slot1'] == $equipslot || $cbe['allowed_slot2'] == $equipslot))
	return 'That item cannot be equipped into that slot.';

      if ($cbe['two_handed'])
      {
	$eq = $this->prep_two_hand();
	
	if ($eq !== TRUE)
	  return $eq;
      }

      $sql = "UPDATE heros_inventory SET container = 2, slot = ? WHERE id = ?";

      $this->db->query($sql, array($equipslot, $equip['invid']));

      $this->hero_add_stats($equip);
      $this->calc_hero_stats();

      return TRUE;
    }

    //switching between two equipslots, when one of the slots is empty
    if ($swap)
    {
      if (!($cbe['allowed_slot1'] == $equipslot || $cbe['allowed_slot2'] == $equipslot))
	return "That item cannot be equipped into that slot";

      $sql = "UPDATE heros_inventory SET slot = ? WHERE id = ?";

      $this->db->query($sql, array($equipslot, $equip['invid']));

      return TRUE;
    }

    return FALSE;
  }

  //unequips the off hand, if the user wants to equip a two-hand wep
  function prep_two_hand()
  {
    $sql = "SELECT heros_inventory.id AS invid,heros_inventory.is_soulbound,heros_inventory.stack_size,
	heros_inventory.container,heros_inventory.slot,hero_items.*
	FROM heros_inventory
	LEFT JOIN hero_items on heros_inventory.itemid = hero_items.id
	WHERE (heros_inventory.container = 2 AND heros_inventory.slot = 17) AND
	charid = ?";

    $q = $this->db->query($sql, array($this->hero['id']));

    if (!$q->num_rows())
      return TRUE;

    $res = $q->row_array();

    //find an empty place
    $sql = "SELECT * FROM heros_inventory WHERE container = 1 AND charid = ?";

    $q = $this->db->query($sql, array($this->hero['id']));

    $slot = FALSE;

    if ($q->num_rows())
    {
      $inv = $q->result_array();

      for ($i = 0; $i < parent::INVENTORY_MAX; $i++)
      {
	$found = FALSE;

	foreach ($inv as $row)
	{
	  if ($row['slot'] == $i)
	  {
	    $found = TRUE;
	    break;
	  }
	}

	if (!$found)
	{
	  $slot = $i;
	  break;
	}
      }
    }
    else
    {
      $slot = 0;
    }

    if ($slot === FALSE)
      return "You don't have any space in your inventory, to unequip the off hand.";

    $this->hero_remove_stats($res);

    $sql = "UPDATE heros_inventory SET slot = ?, container = 1 WHERE id = ?";

    $this->db->query($sql, array($slot, $res['invid']));

    return TRUE;

  }

  //returns ['equipment'], ['money'], ['inventory']
  function get_inventory($charid)
  {
    $sql = "SELECT heros_inventory.is_soulbound,heros_inventory.stack_size,heros_inventory.container,
		heros_inventory.slot,hero_items.* 
		FROM heros_inventory 
		LEFT JOIN hero_items ON heros_inventory.itemid=hero_items.id
		WHERE charid = ?";

    $q = $this->db->query($sql, array($charid));

    if ($q->num_rows())
      $res = $q->result_array();
    else
      $res = FALSE;

    $found = FALSE;
    for ($i = 0; $i < parent::INVENTORY_MAX; $i++)
    {
      if ($res)
      {
	foreach ($res as $row)
	{
	  if ($row['container'] == 1 && $row['slot'] == $i)
	  {
	    $data[] = $row;
	    $found = TRUE;
	    break;
	  }
	}

	if (!$found)
	{
	  $data[] = FALSE;
	}

	$found = FALSE;
      }
      else
      {
	$data[] = FALSE;
      }
    }

    //sort it

    $r['inventory'] = $data;

    if ($res)
    {
      foreach ($res as $row)
      {
	if ($row['container'] == 0)
	{
	  $money = $row;
	  break;
	}
      }
    }

    if (isset($money))
      $r['money'] = $money;
    else
      $r['money'] = 0;

    //equipment
    $found = FALSE;
    for ($i = 0; $i < self::MAX_EQUIPMENT; $i++)
    {
      if ($res)
      {
	foreach ($res as $row)
	{
	  if ($row['container'] == 2 && $row['slot'] == $i)
	  {
	    $eq[] = $row;
	    $found = TRUE;
	    break;
	  }
	}

	if (!$found)
	{
	  $eq[] = FALSE;
	}

	$found = FALSE;
      }
      else
	$eq[] = FALSE;
    }

    $r['equipment'] = $eq;

    //sort it, if needed
    $found = FALSE;
    if ($res)
    {
      for ($i = 0; $i < self::MAX_EQUIPMENT; $i++)
      {
	foreach ($eq as $row)
	{
	  if ($row && $row['slot'] == $i)
	  {
	    $seq[] = $row;
	    $found = TRUE;
	    break;
	  }
	}
      
	if (!$found)
	{
	  $seq[] = FALSE;
	}

	$found = FALSE;
      }

      $r['equipment'] = $seq;
    }

    return $r;

  }

  function add_item_admin($data)
  {
    $sql = "INSERT INTO hero_items 
	VALUES(default,
	" . $this->db->escape($data['name']) . ",
	" . $this->db->escape($data['icon']) . ",
	'" . $data['quality'] . "',
	'" . $data['itemlevel'] . "',
	'" . $data['stack'] . "',
	'" . $data['type'] . "',
	'" . $data['subtype'] . "',
	'" . $data['subsubtype'] . "',
	'" . $data['sell_price'] . "',
	'" . $data['buy_price'] . "',
	" . $this->db->escape($data['text']) . ",
	'" . $data['soulbound'] . "',
	'" . $data['spell'] . "',
	'" . $data['proc'] . "',
	'" . $data['req_level'] . "',
	'" . $data['req_class'] . "',
	'" . $data['nomod_max_health'] . "',
	'" . $data['nomod_max_mana'] . "',
	'" . $data['percent_max_health'] . "',
	'" . $data['percent_max_mana'] . "',
	'" . $data['nomod_agility'] . "',
	'" . $data['nomod_strength'] . "',
	'" . $data['nomod_stamina'] . "',
	'" . $data['nomod_intellect'] . "',
	'" . $data['nomod_spirit'] . "',
	'" . $data['percent_agility'] . "',
	'" . $data['percent_strength'] . "',
	'" . $data['percent_stamina'] . "',
	'" . $data['percent_intellect'] . "',
	'" . $data['percent_spirit'] . "',
	'" . $data['nomod_attackpower'] . "',
	'" . $data['percent_attackpower'] . "',
	'" . $data['nomod_armor'] . "',
	'" . $data['percent_armor'] . "',
	'" . $data['nomod_dodge'] . "',
	'" . $data['nomod_parry'] . "',
	'" . $data['hit'] . "',
	'" . $data['nomod_crit'] . "',
	'" . $data['nomod_damage_min'] . "',
	'" . $data['nomod_damage_max'] . "',
	'" . $data['percent_damage_min'] . "',
	'" . $data['percent_damage_max'] . "',
	'" . $data['nomod_ranged_damage_min'] . "',
	'" . $data['nomod_ranged_damage_max'] . "',
	'" . $data['percent_ranged_damage_min'] . "',
	'" . $data['percent_ranged_damage_max'] . "',
	'" . $data['nomod_heal_min'] . "',
	'" . $data['nomod_heal_max'] . "',
	'" . $data['percent_heal_min'] . "',
	'" . $data['percent_heal_max'] . "',
	'" . $data['life_leech'] . "',
	'" . $data['mana_leech'] . "',
	'" . $data['level_modifier'] . "',
	'" . $data['level_modifier_max'] . "',
	'" . $data['data1'] . "',
	'" . $data['data2'] . "')";

    $this->db->query($sql);

    $this->_create_sql($sql);
  }

  function edit_item_admin($data)
  {
    $sql = "UPDATE hero_items
	SET name = " . $this->db->escape($data['name']) . ",
	icon = " . $this->db->escape($data['icon']) . ",
	quality = '" . $data['quality'] . "',
	itemlevel = '" . $data['itemlevel'] . "',
	stack = '" . $data['stack'] . "',
	type = '" . $data['type'] . "',
	subtype = '" . $data['subtype'] . "',
	subsubtype = '" . $data['subsubtype'] . "',
	sell_price = '" . $data['sell_price'] . "',
	buy_price = '" . $data['buy_price'] . "',
	text = " . $this->db->escape($data['text']) . ",
	soulbound = '" . $data['soulbound'] . "',
	spell = '" . $data['spell'] . "',
	proc = '" . $data['proc'] . "',
	req_level = '" . $data['req_level'] . "',
	req_class = '" . $data['req_class'] . "',
	nomod_max_health = '" . $data['nomod_max_health'] . "',
	nomod_max_mana = '" . $data['nomod_max_mana'] . "',
	percent_max_health = '" . $data['percent_max_health'] . "',
	percent_max_mana = '" . $data['percent_max_mana'] . "',
	nomod_agility = '" . $data['nomod_agility'] . "',
	nomod_strength = '" . $data['nomod_strength'] . "',
	nomod_stamina = '" . $data['nomod_stamina'] . "',
	nomod_intellect = '" . $data['nomod_intellect'] . "',
	nomod_spirit = '" . $data['nomod_spirit'] . "',
	percent_agility = '" . $data['percent_agility'] . "',
	percent_strength = '" . $data['percent_strength'] . "',
	percent_Stamina = '" . $data['percent_stamina'] . "',
	percent_intellect = '" . $data['percent_intellect'] . "',
	percent_spirit = '" . $data['percent_spirit'] . "',
	nomod_attackpower = '" . $data['nomod_attackpower'] . "',
	percent_attackpower = '" . $data['percent_attackpower'] . "',
	nomod_armor = '" . $data['nomod_armor'] . "',
	percent_armor = '" . $data['percent_armor'] . "',
	nomod_dodge = '" . $data['nomod_dodge'] . "',
	nomod_parry = '" . $data['nomod_parry'] . "',
	hit = '" . $data['hit'] . "',
	nomod_Crit = '" . $data['nomod_crit'] . "',
	nomod_damage_min = '" . $data['nomod_damage_min'] . "',
	nomod_damage_max = '" . $data['nomod_damage_max'] . "',
	percent_damage_min = '" . $data['percent_damage_min'] . "',
	percent_damage_max = '" . $data['percent_damage_max'] . "',
	nomod_ranged_damage_min = '" . $data['nomod_ranged_damage_min'] . "',
	nomod_ranged_damage_max = '" . $data['nomod_ranged_damage_max'] . "',
	percent_ranged_damage_min = '" . $data['percent_ranged_damage_min'] . "',
	percent_ranged_damage_max = '" . $data['percent_ranged_damage_max'] . "',
	nomod_heal_min = '" . $data['nomod_heal_min'] . "',
	nomod_heal_max = '" . $data['nomod_heal_max'] . "',
	percent_heal_min = '" . $data['percent_heal_min'] . "',
	percent_heal_max = '" . $data['percent_heal_max'] . "',
	life_leech = '" . $data['life_leech'] . "',
	mana_leech = '" . $data['mana_leech'] . "',
	level_modifier = '" . $data['level_modifier'] . "',
	level_modifier_max = '" . $data['level_modifier_max'] . "',
	data1 = '" . $data['data1'] . "',
	data2 = '" . $data['data2'] . "'
	WHERE id = '" . $data['id'] . "'";

    $this->db->query($sql);

    $this->_create_sql($sql);
  }

  function get_item_admin($id)
  {
    $sql = "SELECT * FROM hero_items WHERE id = ?";

    $q = $this->db->query($sql, array($id));

    if ($q->num_rows())
      return $q->row_array();

    return FALSE;
  }

  function all_items_admin()
  {
    $sql = "SELECT * FROM hero_items";

    $q = $this->db->query($sql);

    if ($q->num_rows())
      return $q->result_array();

    return FALSE;
  }

  function all_items_drop_admin()
  {
    $sql = "SELECT * FROM hero_items";

    $q = $this->db->query($sql);

    if (!$q->num_rows())
      return FALSE;          

    $res = $q->result_array();

    foreach ($res as $row)
    {
      $data[$row['id']] = $row['name'];
    }

    if (!isset($data))
      return FALSE;

    return $data;
  }

  function get_class_item_templates($classid)
  {
    $sql = "SELECT * FROM hero_inventory_templates WHERE classid = ?";
    
    $q = $this->db->query($sql, array($classid));

    if ($q->num_rows())
      return $q->result_array();

    return FALSE;
  }

}
//nowhitesp