"""
state_reader.py
RCON을 통해 팩토리오 게임 상태를 읽어오는 모듈
"""
import json
from factorio_rcon import FactorioRCON


class StateReader:
    def __init__(self, rcon: FactorioRCON):
        self.rcon = rcon

    def get_full_state(self) -> dict:
        """전체 게임 상태를 한 번에 수집"""
        return {
            "player":    self.get_player_info(),
            "inventory": self.get_inventory(),
            "resources": self.scan_resources(),
            "buildings": self.get_buildings(),
            "tech":      self.get_research_status(),
        }

    # ── 플레이어 ────────────────────────────────────────────────
    def get_player_info(self) -> dict:
        lua = """
local p = game.player
rcon.print(game.table_to_json({
  x = math.floor(p.position.x),
  y = math.floor(p.position.y),
  health = p.character and p.character.health or 100
}))
"""
        raw = self.rcon.lua(lua)
        return json.loads(raw) if raw else {}

    # ── 인벤토리 ────────────────────────────────────────────────
    def get_inventory(self) -> dict:
        lua = """
local inv = game.player.get_main_inventory()
local result = {}
local contents = inv.get_contents()
for name, count in pairs(contents) do
  result[name] = count
end
rcon.print(game.table_to_json(result))
"""
        raw = self.rcon.lua(lua)
        return json.loads(raw) if raw else {}

    # ── 자원 패치 스캔 ──────────────────────────────────────────
    def scan_resources(self, radius: int = 200) -> dict:
        """플레이어 주변 자원 패치 위치 탐색"""
        lua = f"""
local p = game.player
local surface = p.surface
local center = p.position
local resources = {{}}

local ore_types = {{"iron-ore", "copper-ore", "coal", "stone", "uranium-ore"}}
for _, ore in ipairs(ore_types) do
  local entities = surface.find_entities_filtered{{
    area = {{
      {{center.x - {radius}, center.y - {radius}}},
      {{center.x + {radius}, center.y + {radius}}}
    }},
    name = ore
  }}
  if #entities > 0 then
    -- 패치 중심점 계산
    local sx, sy = 0, 0
    for _, e in ipairs(entities) do
      sx = sx + e.position.x
      sy = sy + e.position.y
    end
    resources[ore] = {{
      count = #entities,
      center_x = math.floor(sx / #entities),
      center_y = math.floor(sy / #entities)
    }}
  end
end
rcon.print(game.table_to_json(resources))
"""
        raw = self.rcon.lua(lua)
        return json.loads(raw) if raw else {}

    # ── 건물 목록 ───────────────────────────────────────────────
    def get_buildings(self, radius: int = 300) -> list:
        lua = f"""
local p = game.player
local surface = p.surface
local center = p.position

local entity_names = {{
  "burner-mining-drill", "electric-mining-drill",
  "stone-furnace", "steel-furnace", "electric-furnace",
  "transport-belt", "fast-transport-belt",
  "burner-inserter", "inserter",
  "small-electric-pole", "medium-electric-pole",
  "steam-engine", "boiler", "offshore-pump",
  "assembling-machine-1", "assembling-machine-2",
  "chest", "iron-chest", "steel-chest"
}}

local result = {{}}
for _, name in ipairs(entity_names) do
  local entities = surface.find_entities_filtered{{
    area = {{
      {{center.x - {radius}, center.y - {radius}}},
      {{center.x + {radius}, center.y + {radius}}}
    }},
    name = name
  }}
  if #entities > 0 then
    result[name] = #entities
  end
end
rcon.print(game.table_to_json(result))
"""
        raw = self.rcon.lua(lua)
        return json.loads(raw) if raw else {}

    # ── 연구 현황 ───────────────────────────────────────────────
    def get_research_status(self) -> dict:
        lua = """
local force = game.player.force
local completed = {}
local k = 0
for name, tech in pairs(force.technologies) do
  if tech.researched then
    k = k + 1
    completed[k] = name
  end
end
rcon.print(game.table_to_json({
  current = force.current_research and force.current_research.name or "none",
  completed_count = k
}))
"""
        raw = self.rcon.lua(lua)
        return json.loads(raw) if raw else {}

    def summarize_for_ai(self, state: dict) -> str:
        """AI 프롬프트용 상태 요약 텍스트 생성"""
        p   = state.get("player", {})
        inv = state.get("inventory", {})
        res = state.get("resources", {})
        bld = state.get("buildings", {})

        lines = [
            f"## 현재 게임 상태",
            f"### 플레이어",
            f"- 위치: ({p.get('x', '?')}, {p.get('y', '?')})",
            f"- 체력: {p.get('health', '?')}",
            "",
            "### 인벤토리 (주요 아이템)",
        ]

        key_items = [
            "iron-ore", "copper-ore", "coal", "stone",
            "iron-plate", "copper-plate", "steel-plate",
            "burner-mining-drill", "electric-mining-drill",
            "stone-furnace", "transport-belt", "inserter",
            "burner-inserter", "small-electric-pole",
        ]
        for item in key_items:
            count = inv.get(item, 0)
            if count > 0:
                lines.append(f"- {item}: {count}개")

        lines += ["", "### 주변 자원 패치"]
        if res:
            for ore, info in res.items():
                lines.append(
                    f"- {ore}: {info['count']}타일 "
                    f"(중심: {info['center_x']}, {info['center_y']})"
                )
        else:
            lines.append("- 탐색된 자원 없음")

        lines += ["", "### 건설된 건물"]
        if bld:
            for name, count in bld.items():
                lines.append(f"- {name}: {count}개")
        else:
            lines.append("- 아직 건물 없음")

        return "\n".join(lines)