-- SPDX-License-Identifier: GPL-3.0-or-later

--- Card记录了FreeKill所有卡牌的基础信息。
---
--- 它包含了ID、所属包、牌名、花色、点数等等
---
---@class Card : Object
---@field public id integer @ 标志某一张卡牌唯一的数字，从1开始。若此牌是虚拟牌，则其id为0。服务器启动时为卡牌赋予ID。
---@field public package Package @ 卡牌所属的扩展包
---@field public name string @ 卡牌的名字
---@field public suit Suit @ 卡牌的花色（四色及无花色）
---@field public number integer @ 卡牌的点数（0到K）
---@field public trueName string @ 卡牌的真名，一般用于分辨杀。
---@field public color Color @ 卡牌的颜色（分为黑色、红色、无色）
---@field public type CardType @ 卡牌的种类（基本牌、锦囊牌、装备牌）
---@field public sub_type CardSubtype @ 卡牌的子种类（例如延时锦囊牌、武器、防具等）
---@field public area CardArea @ 卡牌所在区域（例如手牌区，判定区，装备区，牌堆，弃牌堆···）
---@field public mark table<string, integer> @ 当前拥有的所有标记，用烂了
---@field public subcards integer[] @ 子卡ID表
---@field public skillName string @ 虚拟牌的技能名 for virtual cards
---@field private _skillName string
---@field public skillNames string[] @ 虚拟牌的技能名们（一张虚拟牌可能有多个技能名，如芳魂、龙胆、朱雀羽扇）
---@field public skill Skill @ 技能（用于实现卡牌效果）
---@field public special_skills string[] | nil @ 衍生技能，如重铸
---@field public is_damage_card boolean @ 是否为会造成伤害的牌
---@field public multiple_targets boolean @ 是否为指定多个目标的牌
---@field public is_derived bool @ 判断是否为衍生牌
local Card = class("Card")

---@alias Suit integer

Card.Spade = 1
Card.Club = 2
Card.Heart = 3
Card.Diamond = 4
Card.NoSuit = 5

---@alias Color integer

Card.Black = 1
Card.Red = 2
Card.NoColor = 3

---@alias CardType integer

Card.TypeBasic = 1
Card.TypeTrick = 2
Card.TypeEquip = 3

---@alias CardSubtype integer

Card.SubtypeNone = 1
Card.SubtypeDelayedTrick = 2
Card.SubtypeWeapon = 3
Card.SubtypeArmor = 4
Card.SubtypeDefensiveRide = 5
Card.SubtypeOffensiveRide = 6
Card.SubtypeTreasure = 7

---@alias CardArea integer

Card.Unknown = 0
Card.PlayerHand = 1
Card.PlayerEquip = 2
Card.PlayerJudge = 3
Card.PlayerSpecial = 4
Card.Processing = 5
Card.DrawPile = 6
Card.DiscardPile = 7
Card.Void = 8

--- Card的构造函数。具体负责构建Card实例的函数，请参见fk_ex部分。
function Card:initialize(name, suit, number, color)
  self.name = name
  self.suit = suit or Card.NoSuit
  self.number = number or 0

  if string.sub(name, 1, 1) == "&" then
    self.name = string.sub(name, 2, #name)
    self.is_derived = true
  end

  local name_splited = self.name:split("__")
  self.trueName = name_splited[#name_splited]

  if suit == Card.Spade or suit == Card.Club then
    self.color = Card.Black
  elseif suit == Card.Heart or suit == Card.Diamond then
    self.color = Card.Red
  elseif color ~= nil then
    self.color = color
  else
    self.color = Card.NoColor
  end

  -- self.package = nil
  self.id = 0
  self.type = 0
  self.sub_type = Card.SubtypeNone
  -- self.skill = nil
  self.subcards = {}
  -- self.skillName = nil
  self._skillName = ""
  self.skillNames = {}
  -- self.mark = {}   -- 这个视情况了，只有虚拟牌才有真正的self.mark，真牌的话挂在currentRoom
end

function Card:__index(k)
  if k == "skillName" then
    return self._skillName
  elseif k == "mark" then
    if not self:isVirtual() then
      local mark_tab = Fk:currentRoom().card_marks
      mark_tab[self.id] = mark_tab[self.id] or {}
      return mark_tab[self.id]
    else
      self.mark = {}
      return self.mark
    end
  end
end

function Card:__newindex(k, v)
  if k == "skillName" then
    table.insertIfNeed(self.skillNames, v)
    self._skillName = v
  else
    rawset(self, k, v)
  end
end

function Card:__tostring()
  return string.format("<Card %s[%s %d]>", self.name, self:getSuitString(), self.number)
end

--- 克隆特定卡牌并赋予花色与点数。
---
--- 会将skill/special_skills/equip_skill继承到克隆牌中。
---@param suit Suit|nil @ 克隆后的牌的花色
---@param number integer|nil @ 克隆后的牌的点数
---@return Card @ 产品
function Card:clone(suit, number)
  local newCard = self.class:new(self.name, suit, number)
  newCard.skill = self.skill
  newCard.special_skills = self.special_skills
  newCard.is_damage_card = self.is_damage_card
  newCard.multiple_targets = self.multiple_targets
  newCard.is_derived = self.is_derived
  return newCard
end

--- 检测是否为虚拟卡牌，如果其ID为0及以下，则为虚拟卡牌。
function Card:isVirtual()
  return self.id == 0
end

--- 获取卡牌的ID。
---
--- 如果牌是虚拟牌，则返回其第一张子卡的id，没有子卡就返回nil
---@return integer | nil
function Card:getEffectiveId()
  if self:isVirtual() then
    return #self.subcards > 0 and self.subcards[1] or nil
  end
  return self.id
end

local function updateColorAndNumber(card)
  local color = Card.NoColor
  local number = 0
  local different_color = false
  for i, id in ipairs(card.subcards) do
    local c = Fk:getCardById(id)
    number = math.min(number + c.number, 13)
    if i == 1 then
      card.suit = c.suit
    else
      card.suit = Card.NoSuit
    end

    if color ~= c.color then
      if not different_color then
        if c.color ~= Card.NoColor then
          different_color = true
        end
        color = c.color
      else
        color = Card.NoColor
      end
    end
  end

  card.color = color
  card.number = number
end

--- 将一张子卡牌加入某张牌中（是addSubcards的基础函数，常用addSubcards）。
---@param card integer|Card @ 要加入的子卡
function Card:addSubcard(card)
  if type(card) == "number" then
    table.insert(self.subcards, card)
  else
    assert(card:isInstanceOf(Card))
    -- assert(not card:isVirtual(), "Can not add virtual card as subcard")
    if card:isVirtual() then
      table.insertTable(self.subcards, card.subcards)
    else
      table.insert(self.subcards, card.id)
    end

    for _, skill in ipairs(card.skillNames) do
      self.skillName = skill
    end
  end

  updateColorAndNumber(self)
end

--- 将一批子卡牌加入某张牌中（常用于将这批牌弃置/交给某个角色···）。
---@param cards integer[] | Card[] @ 要加入的子卡列表
function Card:addSubcards(cards)
  for _, c in ipairs(cards) do
    self:addSubcard(c)
  end
end

--- 清空加入某张牌中的子卡牌。
function Card:clearSubcards()
  self.subcards = {}
  updateColorAndNumber(self)
end

--- 判断此牌能否符合一个卡牌规则。
function Card:matchPattern(pattern)
  return Exppattern:Parse(pattern):match(self)
end

--- 获取卡牌花色并返回花色文字描述（如 黑桃、红桃、梅花、方块）或者符号（如♠♥♣♦，带颜色）。
---@param symbol bool @ 是否以符号形式显示
---@return string @ 描述花色的字符串
function Card:getSuitString(symbol)
  local suit = self.suit
  local ret
  if suit == Card.Spade then
    ret = "spade"
  elseif suit == Card.Heart then
    ret = "heart"
  elseif suit == Card.Club then
    ret = "club"
  elseif suit == Card.Diamond then
    ret = "diamond"
  else
    ret = "nosuit"
  end
  return symbol and "log_" .. ret or ret
end

--- 获取卡牌颜色并返回点数颜色描述（例如黑色/红色/无色）。
---@return string @ 描述颜色的字符串
function Card:getColorString()
  local color = self.color
  if color == Card.Black then
    return "black"
  elseif color == Card.Red then
    return "red"
  end
  return "nocolor"
end

--- 获取卡牌类型并返回类型描述（例如基本牌/锦囊牌/装备牌）。
function Card:getTypeString()
  local t = self.type
  if t == Card.TypeBasic then
    return "basic"
  elseif t == Card.TypeTrick then
    return "trick"
  elseif t == Card.TypeEquip then
    return "equip"
  end
  return "notype"
end

local subtype_string_table = {
  [Card.SubtypeArmor] = "armor",
  [Card.SubtypeWeapon] = "weapon",
  [Card.SubtypeTreasure] = "treasure",
  [Card.SubtypeDelayedTrick] = "delayed_trick",
  [Card.SubtypeDefensiveRide] = "defensive_ride",
  [Card.SubtypeOffensiveRide] = "offensive_ride",
}

function Card:getSubtypeString()
  local t = self.sub_type
  local ret = subtype_string_table[t]
  if ret == nil then
    if self.type == Card.TypeTrick then
      return "normal_trick"
    elseif self.type == Card.TypeBasic then
      return "basic"
    end
  else
    return ret
  end
end

--- 获取卡牌点数并返回点数文字描述（仅限A/J/Q/K/X）。
local function getNumberStr(num)
  if num == 1 then
    return "A"
  elseif num == 11 then
    return "J"
  elseif num == 12 then
    return "Q"
  elseif num == 13 then
    return "K"
  elseif num == 0 then
    return "X"
  end
  return tostring(num)
end

--- 获取卡牌点数并返回点数文字描述（仅限A/J/Q/K/X）。
---@param num integer @ 当你只想翻译点数为文字时(优先检查，请注意)
function Card:getNumberStr(num)
  return tostring(getNumberStr(num and num or self.number))
end

--- 根据点数文字描述返回数字。
---@param str integer @ 只能翻译文字为点数
function Card:strToNumber(str)
  if str == "A" then
    return 1
  elseif str == "J" then
    return 11
  elseif str == "Q" then
    return 12
  elseif str == "K" then
    return 13
  elseif str == "X" then
    return 0
  end
  return tonumber(str)
end

--- 获取卡牌的完整点数(花色+点数)，如（黑桃A/♠A）。
---@param symbol boolean @ 是否以符号形式显示花色
---@return string @ 完整点数（字符串）
function Card:getSuitCompletedString(symbol)
  return Fk:translate(self:getSuitString(symbol)) .. getNumberStr(self.number)
end

--- 判断卡牌是否为普通锦囊牌
---@return boolean
function Card:isCommonTrick()
  return self.type == Card.TypeTrick and self.sub_type ~= Card.SubtypeDelayedTrick
end

--- 为卡牌赋予Mark。
---@param mark string @ 标记
---@param count integer @ 为标记赋予的数量
-- mark name and UI:
-- 'xxx': invisible mark
-- '@mark': mark with extra data (maybe string or number)
-- '@@mark': mark without data
function Card:addMark(mark, count)
  count = count or 1
  local num = self.mark[mark]
  num = num or 0
  self:setMark(mark, math.max(num + count, 0))
end

--- 为卡牌移除Mark。
---@param mark string @ 标记
---@param count integer @ 为标记删除的数量
function Card:removeMark(mark, count)
  count = count or 1
  local num = self.mark[mark]
  num = num or 0
  self:setMark(mark, math.max(num - count, 0))
end

--- 为卡牌设置Mark至指定数量。
---
--- 关于标记的说明：
---
--- * @开头的为可见标记，其余为隐藏标记。
--- * -turn结尾、-phase结尾、-round结尾的如同玩家标记一样在这个时机自动清理。
--- * -noclear结尾的表示不要自动清理。
--- * 默认的自动清理策略是当卡牌离开手牌区后清除所有的标记。
--- * -turn之类的后缀会覆盖默认清理的方式。
--- * (TODO: 以上皆为画饼)
---@param mark string @ 标记
---@param count integer @ 为标记删除的数量
function Card:setMark(mark, count)
  if count == 0 then count = nil end
  if self.mark[mark] ~= count then
    self.mark[mark] = count
  end
end

--- 获取卡牌对应Mark的数量。
---@param mark string @ 标记
---@return any
function Card:getMark(mark)
  local ret = (self.mark[mark] or 0)
  if (not self:isVirtual()) and next(self.mark) == nil then
    self.mark = nil
  end
  return ret
end

--- 判定卡牌是否拥有对应的Mark。
---@param mark string @ 标记
---@return boolean
function Card:hasMark(mark)
  fk.qWarning("hasMark will be deleted in future version!")
  return self:getMark(mark) ~= 0
end

--- 获取卡牌有哪些Mark。
function Card:getMarkNames()
  local ret = {}
  for k, _ in pairs(self.mark) do
    table.insert(ret, k)
  end
  return ret
end

--- 比较两张卡牌的花色是否相同
---@param anotherCard Card @ 另一张卡牌
---@param diff bool @ 比较二者相同还是不同
---@return boolean 返回比较结果
function Card:compareSuitWith(anotherCard, diff)
  if self ~= anotherCard and table.contains({ self.suit, anotherCard.suit }, Card.NoSuit) then
    return false
  end

  if diff then
    return self.suit ~= anotherCard.suit
  else
    return self.suit == anotherCard.suit
  end
end

--- 比较两张卡牌的颜色是否相同
---@param anotherCard Card @ 另一张卡牌
---@param diff boolean @ 比较二者相同还是不同
---@return boolean 返回比较结果
function Card:compareColorWith(anotherCard, diff)
  if self ~= anotherCard and table.contains({ self.color, anotherCard.color }, Card.NoColor) then
    return false
  end

  if diff then
    return self.color ~= anotherCard.color
  else
    return self.color == anotherCard.color
  end
end

--- 比较两张卡牌的点数是否相同
---@param anotherCard Card @ 另一张卡牌
---@param diff boolean @ 比较二者相同还是不同
---@return boolean 返回比较结果
function Card:compareNumberWith(anotherCard, diff)
  if self ~= anotherCard and self.number < 1 or anotherCard.number < 1 then
    return false
  end

  if diff then
    return self.number ~= anotherCard.number
  else
    return self.number == anotherCard.number
  end
end

-- for sendLog
--- 获取卡牌的文字信息并准备作为log发送。
function Card:toLogString()
  local ret = string.format('<font color="#0598BC"><b>%s</b></font>', Fk:translate(self.name) .. "[")
  if self:isVirtual() and #self.subcards ~= 1 then
    ret = ret .. Fk:translate(self:getColorString())
  else
    ret = ret .. Fk:translate("log_" .. self:getSuitString())
    if self.number > 0 then
      ret = ret .. string.format('<font color="%s"><b>%s</b></font>', self.color == Card.Red and "#CC3131" or "black", getNumberStr(self.number))
    end
  end
  ret = ret .. '<font color="#0598BC"><b>]</b></font>'
  return ret
end

--- 静态方法。传入下列类型之一的参数，返回id列表。
---@param c integer|integer[]|Card|Card[]
---@return integer[]
function Card:getIdList(c)
  error("This is a static method. Please use Card:getIdList instead")
end

function Card.static:getIdList(c)
  if type(c) == "number" then
    return {c}
  end
  if c.class and c:isInstanceOf(Card) then
    if c:isVirtual() then
      return table.clone(c.subcards)
    else
      return {c.id}
    end
  end

  -- array
  local ret = {}
  for _, c2 in ipairs(c) do
    table.insertTable(ret, Card:getIdList(c2))
  end
  return ret
end

return Card