#pragma once

// ============================================================================
// block_workspace.h - 工作区管理
// ============================================================================

#include "block_core.h"

#define MAX_WORKSPACE_BLOCKS    1024
#define MAX_WORKSPACE_CONNECTIONS 2048

typedef struct BlockWorkspace {
    Block* blocks[MAX_WORKSPACE_BLOCKS];
    int block_count;
    
    BlockConnection connections[MAX_WORKSPACE_CONNECTIONS];
    int connection_count;
    
    float view_x, view_y;
    float zoom;
    
    Block* selected_block;
    BlockSlot* dragging_from;
    float drag_start_x, drag_start_y;
    
    int next_block_id;
    
    struct BlockPalette* palette;
} BlockWorkspace;

// 创建/销毁
BlockWorkspace* workspace_create(void);
void workspace_destroy(BlockWorkspace* ws);

// 添加/移除积木
int workspace_add_block(BlockWorkspace* ws, Block* block);
void workspace_remove_block(BlockWorkspace* ws, int block_id);

// 添加/移除连接
bool workspace_add_connection(BlockWorkspace* ws, BlockSlot* from, BlockSlot* to);
void workspace_remove_connection(BlockWorkspace* ws, BlockSlot* from);
void workspace_remove_all_connections(BlockWorkspace* ws, Block* block);

// 查找
Block* workspace_find_block(BlockWorkspace* ws, int block_id);
Block* workspace_find_block_at(BlockWorkspace* ws, float x, float y);
BlockSlot* workspace_find_slot_at(BlockWorkspace* ws, float x, float y);

// 视口变换
void workspace_screen_to_world(BlockWorkspace* ws, float sx, float sy, float* wx, float* wy);
void workspace_world_to_screen(BlockWorkspace* ws, float wx, float wy, float* sx, float* sy);

// 清空
void workspace_clear(BlockWorkspace* ws);