/**
 * @file struct_prob.h
 * @brief 定义优化问题(problem)结构体。本模块用来提高工程代码质量。
 * This is the definition of problem structure. For better code engineering.
 * @version 0.1
 * @date 2021-09-17
 * 
 * @copyright Copyright (c) 2021
 * 
 */

#ifndef __STRUCT_PROB_H__
#define __STRUCT_PROB_H__

#include "csocp_config.h"

/** CSOCP优化问题结构体 Structrue of CSOCP problem */
struct c_prob_s {
  c_int n;      /**< 变量数量 Number of variables */
  c_int m;      /**< 不等式约束数量 Number of inequalities */
  c_int p;      /**< 等式约束数量 Number of equalities */
  c_int degree; /**< 线性锥与二阶锥的数量和 Degree of the cone */

  c_spmat *A; /**< 等式约束矩阵A Equality matrix */
  c_spmat *G; /**< 不等式约束矩阵G Inequality matrix */
  c_real *c;  /**< 目标函数向量c Objective costs */
  c_real *b;  /**< 等式约束右端项b RHS of equalities */
  c_real *h;  /**< 不等式约束右端项h RHS of cones */

  c_cone *cone;   /**< 锥 Cone */
  c_kkt *kkt;     /**< KKT系统 KKT System */
  c_param *param; /**< 参数 Parameters */

  c_real *facX; /**< 变量缩放系数 Scaling factors of variables */
  c_real *facA; /**< 等式约束矩阵A缩放系数 Scaling factors of equality matrix */
  c_real *facG; /**< 不等式约束矩阵G缩放系数 Scaling factors of inequality matrix */

  c_real *rx;
  c_real *ry;
  c_real *rz;

  c_real *dx1;
  c_real *dy1;
  c_real *dz1;

  c_real *dx2;
  c_real *dy2;
  c_real *dz2;

  c_real *dsaff;
  c_real *dzaff;
  c_real *dsaff_w;
  c_real *dzaff_w;

  c_real *lambda;

  c_real *x;
  c_real *y;
  c_real *z;
  c_real *s;
  c_attr *attr;

  c_real *best_x;
  c_real *best_y;
  c_real *best_z;
  c_real *best_s;
  c_attr *best_attr;
};

#endif