/*****************************************************************************\
 *  update_part.c - partition update function for scontrol.
 *****************************************************************************
 *  Copyright (C) 2002-2007 The Regents of the University of California.
 *  Copyright (C) 2008-2010 Lawrence Livermore National Security.
 *  Copyright (C) SchedMD LLC.
 *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
 *  Written by Morris Jette <jette1@llnl.gov>
 *  CODE-OCEC-09-009. All rights reserved.
 *
 *  This file is part of Slurm, a resource management program.
 *  For details, see <https://slurm.schedmd.com/>.
 *  Please also read the included file: DISCLAIMER.
 *
 *  Slurm is free software; you can redistribute it and/or modify it under
 *  the terms of the GNU General Public License as published by the Free
 *  Software Foundation; either version 2 of the License, or (at your option)
 *  any later version.
 *
 *  In addition, as a special exception, the copyright holders give permission
 *  to link the code of portions of this program with the OpenSSL library under
 *  certain conditions as described in each individual source file, and
 *  distribute linked combinations including the two. You must obey the GNU
 *  General Public License in all respects for all of the code used other than
 *  OpenSSL. If you modify file(s) with this exception, you may extend this
 *  exception to your version of the file(s), but you are not obligated to do
 *  so. If you do not wish to do so, delete this exception statement from your
 *  version.  If you delete this exception statement from all source files in
 *  the program, then also delete it here.
 *
 *  Slurm is distributed in the hope that it will be useful, but WITHOUT ANY
 *  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 *  FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
 *  details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with Slurm; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA.
\*****************************************************************************/

#include "slurm/slurm.h"
#include "src/common/proc_args.h"
#include "src/common/slurm_resource_info.h"
#include "src/scontrol/scontrol.h"

extern int
scontrol_parse_part_options (int argc, char **argv, int *update_cnt_ptr,
			     update_part_msg_t *part_msg_ptr)
{
	int i, min, max;
	char *tag, *val;
	int taglen, vallen;

	if (!update_cnt_ptr) {
		error("scontrol_parse_part_options internal error, "
		      "update_cnt_ptr == NULL");
		exit_code = 1;
		return SLURM_ERROR;
	}
	if (!part_msg_ptr) {
		error("scontrol_parse_part_options internal error, "
		      "part_msg_ptr == NULL");
		exit_code = 1;
		return SLURM_ERROR;
	}

	for (i = 0; i < argc; i++) {
		char plus_minus = '\0';
		tag = argv[i];
		val = strchr(argv[i], '=');
		if (val) {
			taglen = val - argv[i];
			if ((val[-1] == '+') || (val[-1] == '-')) {
				plus_minus = val[-1];
				taglen--;
			}
			val++;
			vallen = strlen(val);
		} else {
			exit_code = 1;
			error("Invalid input: %s  Request aborted", argv[i]);
			return SLURM_ERROR;
		}

		if (xstrncasecmp(tag, "PartitionName", MAX(taglen, 2)) == 0) {
			part_msg_ptr->name = val;
			(*update_cnt_ptr)++;
		} else if (xstrncasecmp(tag, "MaxTime", MAX(taglen, 4)) == 0) {
			int max_time = time_str2mins(val);
			if ((max_time < 0) && (max_time != INFINITE)) {
				exit_code = 1;
				error("Invalid input %s", argv[i]);
				return SLURM_ERROR;
			}
			part_msg_ptr->max_time = max_time;
			(*update_cnt_ptr)++;
		}
		else if (xstrncasecmp(tag, "CpuBind", MAX(taglen, 7)) == 0) {
			if (xlate_cpu_bind_str(val, &part_msg_ptr->cpu_bind) !=
			    SLURM_SUCCESS) {
				exit_code = 1;
				error("Invalid input %s", argv[i]);
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		}
		else if (xstrncasecmp(tag, "DefaultTime", MAX(taglen, 8)) == 0){
			int default_time = time_str2mins(val);
			if ((default_time < 0) && (default_time != INFINITE)) {
				exit_code = 1;
				error("Invalid input %s", argv[i]);
				return SLURM_ERROR;
			}
			part_msg_ptr->default_time = default_time;
			(*update_cnt_ptr)++;
		}
		else if (xstrncasecmp(tag, "MaxCPUsPerNode",
				      MAX(taglen, 4)) == 0) {
			if ((xstrcasecmp(val,"UNLIMITED") == 0) ||
			    (xstrcasecmp(val,"INFINITE") == 0)) {
				part_msg_ptr->max_cpus_per_node = INFINITE;
			} else if (parse_uint32(val, &part_msg_ptr->
						      max_cpus_per_node)) {
				error("Invalid MaxCPUsPerNode value: %s", val);
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		} else if (!xstrncasecmp(tag, "MaxCPUsPerSocket",
					 MAX(taglen, 4))) {
			if (!xstrcasecmp(val, "UNLIMITED") ||
			    !xstrcasecmp(val, "INFINITE")) {
				part_msg_ptr->max_cpus_per_socket = INFINITE;
			} else if (parse_uint32(val, &part_msg_ptr->
						max_cpus_per_socket)) {
				error("Invalid MaxCPUsPerSocket value: %s",
				      val);
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		} else if (xstrncasecmp(tag, "MaxNodes", MAX(taglen, 4)) == 0) {
			min = 1;
			if ((xstrcasecmp(val,"UNLIMITED") == 0) ||
			    (xstrcasecmp(val,"INFINITE") == 0)) {
				part_msg_ptr->max_nodes = INFINITE;
			} else if (!get_resource_arg_range(val, "MaxNodes",
							   &min, &max, false)) {
				exit_code = 1;
			} else {
				part_msg_ptr->max_nodes = min;
			}
			(*update_cnt_ptr)++;
		}
		else if (xstrncasecmp(tag, "MinNodes", MAX(taglen, 2)) == 0) {
			min = 1;
			verify_node_count(val, &min, &max, NULL);
			part_msg_ptr->min_nodes = min;
			(*update_cnt_ptr)++;
		}
		else if (xstrncasecmp(tag, "Default", MAX(taglen, 7)) == 0) {
			if (xstrncasecmp(val, "NO", MAX(vallen, 1)) == 0)
				part_msg_ptr->flags |= PART_FLAG_DEFAULT_CLR;
			else if (xstrncasecmp(val, "YES", MAX(vallen, 1)) == 0)
				part_msg_ptr->flags |= PART_FLAG_DEFAULT;
			else {
				exit_code = 1;
				error("Invalid input: %s", argv[i]);
				error("Acceptable Default values are YES and NO");
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "DisableRootJobs", MAX(taglen, 1))) {
			if (xstrncasecmp(val, "NO", MAX(vallen, 1)) == 0)
				part_msg_ptr->flags |= PART_FLAG_NO_ROOT_CLR;
			else if (xstrncasecmp(val, "YES", MAX(vallen, 1)) == 0)
				part_msg_ptr->flags |= PART_FLAG_NO_ROOT;
			else {
				exit_code = 1;
				error("Invalid input: %s", argv[i]);
				error("Acceptable DisableRootJobs values are YES and NO");
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "ExclusiveUser", MAX(taglen, 1))) {
			if (xstrncasecmp(val, "NO", MAX(vallen, 1)) == 0)
				part_msg_ptr->flags |= PART_FLAG_EXC_USER_CLR;
			else if (xstrncasecmp(val, "YES", MAX(vallen, 1)) == 0)
				part_msg_ptr->flags |= PART_FLAG_EXCLUSIVE_USER;
			else {
				exit_code = 1;
				error("Invalid input: %s", argv[i]);
				error("Acceptable ExclusiveUser values are YES and NO");
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "ExclusiveTopo", MAX(taglen, 1))) {
			if (xstrncasecmp(val, "NO", MAX(vallen, 1)) == 0)
				part_msg_ptr->flags |= PART_FLAG_EXC_TOPO_CLR;
			else if (xstrncasecmp(val, "YES", MAX(vallen, 1)) == 0)
				part_msg_ptr->flags |= PART_FLAG_EXCLUSIVE_TOPO;
			else {
				exit_code = 1;
				error("Invalid input: %s", argv[i]);
				error("Acceptable ExclusiveTopo values are YES and NO");
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		}
		else if (xstrncasecmp(tag, "Hidden", MAX(taglen, 1)) == 0) {
			if (xstrncasecmp(val, "NO", MAX(vallen, 1)) == 0)
				part_msg_ptr->flags |= PART_FLAG_HIDDEN_CLR;
			else if (xstrncasecmp(val, "YES", MAX(vallen, 1)) == 0)
				part_msg_ptr->flags |= PART_FLAG_HIDDEN;
			else {
				exit_code = 1;
				error("Invalid input: %s", argv[i]);
				error("Acceptable Hidden values are YES and NO");
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		}
		else if (xstrncasecmp(tag, "LLN", MAX(taglen, 1)) == 0) {
			if (xstrncasecmp(val, "NO", MAX(vallen, 1)) == 0)
				part_msg_ptr->flags |= PART_FLAG_LLN_CLR;
			else if (xstrncasecmp(val, "YES", MAX(vallen, 1)) == 0)
				part_msg_ptr->flags |= PART_FLAG_LLN;
			else {
				exit_code = 1;
				error("Invalid input: %s", argv[i]);
				error("Acceptable LLN values are YES and NO");
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		}
		else if (xstrncasecmp(tag, "RootOnly", MAX(taglen, 3)) == 0) {
			if (xstrncasecmp(val, "NO", MAX(vallen, 1)) == 0)
				part_msg_ptr->flags |= PART_FLAG_ROOT_ONLY_CLR;
			else if (xstrncasecmp(val, "YES", MAX(vallen, 1)) == 0)
				part_msg_ptr->flags |= PART_FLAG_ROOT_ONLY;
			else {
				exit_code = 1;
				error("Invalid input: %s", argv[i]);
				error("Acceptable RootOnly values are YES and NO");
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		}
		else if (xstrncasecmp(tag, "ReqResv", MAX(taglen, 3)) == 0) {
			if (xstrncasecmp(val, "NO", MAX(vallen, 1)) == 0)
				part_msg_ptr->flags |= PART_FLAG_REQ_RESV_CLR;
			else if (xstrncasecmp(val, "YES", MAX(vallen, 1)) == 0)
				part_msg_ptr->flags |= PART_FLAG_REQ_RESV;
			else {
				exit_code = 1;
				error("Invalid input: %s", argv[i]);
				error("Acceptable ReqResv values are YES and NO");
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "OverSubscribe", MAX(taglen, 5)) ||
			 !xstrncasecmp(tag, "Shared", MAX(taglen, 2))) {
			char *colon_pos = strchr(val, ':');
			if (colon_pos) {
				*colon_pos = '\0';
				vallen = strlen(val);
			}
			if (xstrncasecmp(val, "NO", MAX(vallen, 1)) == 0) {
				part_msg_ptr->max_share = 1;

			} else if (xstrncasecmp(val, "EXCLUSIVE",
				   MAX(vallen, 1)) == 0) {
				part_msg_ptr->max_share = 0;

			} else if (xstrncasecmp(val, "YES", MAX(vallen, 1))
				   == 0) {
				if (colon_pos) {
					part_msg_ptr->max_share =
						(uint16_t) strtol(colon_pos+1,
							(char **) NULL, 10);
				} else {
					part_msg_ptr->max_share = (uint16_t) 4;
				}
			} else if (xstrncasecmp(val, "FORCE", MAX(vallen, 1))
				   == 0) {
				if (colon_pos) {
					part_msg_ptr->max_share =
						(uint16_t) strtol(colon_pos+1,
							(char **) NULL, 10) |
							SHARED_FORCE;
				} else {
					part_msg_ptr->max_share =
						(uint16_t) 4 |SHARED_FORCE;
				}
			} else {
				exit_code = 1;
				error("Invalid input: %s", argv[i]);
				error("Acceptable OverSubscribe values are NO, EXCLUSIVE, YES:#, and FORCE:#");
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		}
		else if (xstrncasecmp(tag, "OverTimeLimit", MAX(taglen, 5))
			  == 0) {
			if ((xstrcasecmp(val,"UNLIMITED") == 0) ||
			    (xstrcasecmp(val,"INFINITE") == 0)) {
				part_msg_ptr->over_time_limit =
					INFINITE16;
			} else if (parse_uint16(val, &part_msg_ptr->
						      over_time_limit)) {
				error("Invalid OverTimeLimit value: %s", val);
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "PowerDownOnIdle", MAX(taglen, 1))) {
			if (!xstrncasecmp(val, "NO", MAX(vallen, 1)))
				part_msg_ptr->flags |= PART_FLAG_PDOI_CLR;
			else if (!xstrncasecmp(val, "YES", MAX(vallen, 1)))
				part_msg_ptr->flags |= PART_FLAG_PDOI;
			else {
				exit_code = 1;
				error("Invalid input: %s", argv[i]);
				error("Acceptable PowerDownOnIdle values are YES and NO");
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		}
		else if (xstrncasecmp(tag, "PreemptMode", MAX(taglen, 3)) == 0) {
			uint16_t new_mode = preempt_mode_num(val);
			if (new_mode != NO_VAL16) {
				if (new_mode & PREEMPT_MODE_GANG) {
					error("PreemptMode=GANG is a cluster-wide option and cannot be set at partition level");
					return SLURM_ERROR;
				}
				part_msg_ptr->preempt_mode = new_mode;
			} else {
				error("Invalid input: %s", argv[i]);
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "Priority", MAX(taglen, 3))) {
			if (parse_uint16(val, &part_msg_ptr->priority_tier)) {
				error("Invalid Priority value: %s", val);
				return SLURM_ERROR;
			}
			part_msg_ptr->priority_job_factor =
				part_msg_ptr->priority_tier;
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag,"PriorityJobFactor",MAX(taglen, 3))) {
			if (parse_uint16(val,
					 &part_msg_ptr->priority_job_factor)) {
				error("Invalid PriorityJobFactor value: %s",
				      val);
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "PriorityTier", MAX(taglen, 3))) {
			if (parse_uint16(val, &part_msg_ptr->priority_tier)) {
				error("Invalid PriorityTier value: %s", val);
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "State", MAX(taglen, 2))) {
			if (!xstrncasecmp(val, "INACTIVE", MAX(vallen, 1)))
				part_msg_ptr->state_up = PARTITION_INACTIVE;
			else if (!xstrncasecmp(val, "DOWN", MAX(vallen, 1)))
				part_msg_ptr->state_up = PARTITION_DOWN;
			else if (!xstrncasecmp(val, "UP", MAX(vallen, 1)))
				part_msg_ptr->state_up = PARTITION_UP;
			else if (!xstrncasecmp(val, "DRAIN", MAX(vallen, 1)))
				part_msg_ptr->state_up = PARTITION_DRAIN;
			else {
				exit_code = 1;
				error("Invalid input: %s", argv[i]);
				error("Acceptable State values are UP, DOWN, DRAIN and INACTIVE");
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "Nodes", MAX(taglen, 1))) {
			if (plus_minus)
				part_msg_ptr->nodes =
					scontrol_process_plus_minus(plus_minus,
								    val, true);
			else
				part_msg_ptr->nodes = val;
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "AllowGroups", MAX(taglen, 6))) {
			part_msg_ptr->allow_groups = val;
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "AllowAccounts", MAX(taglen, 6))) {
			part_msg_ptr->allow_accounts = val;
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "AllowQos", MAX(taglen, 6))) {
			part_msg_ptr->allow_qos = val;
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "DenyAccounts", MAX(taglen, 5))) {
			part_msg_ptr->deny_accounts = val;
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "DenyQos", MAX(taglen, 5))) {
			part_msg_ptr->deny_qos = val;
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "AllocNodes", MAX(taglen, 6))) {
			part_msg_ptr->allow_alloc_nodes = val;
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "Alternate", MAX(taglen, 3))) {
			part_msg_ptr->alternate = val;
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "GraceTime", MAX(taglen, 5))) {
			if (parse_uint32(val, &part_msg_ptr->grace_time)) {
				error ("Invalid GraceTime value: %s", val);
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "DefMemPerCPU", MAX(taglen, 10))) {
			if (parse_uint64(val, &part_msg_ptr->def_mem_per_cpu)) {
				error ("Invalid DefMemPerCPU value: %s", val);
				return SLURM_ERROR;
			}
			part_msg_ptr->def_mem_per_cpu |= MEM_PER_CPU;
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "DefMemPerNode", MAX(taglen, 10))) {
			if (parse_uint64(val, &part_msg_ptr->def_mem_per_cpu)) {
				error ("Invalid DefMemPerNode value: %s", val);
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "MaxMemPerCPU", MAX(taglen, 10))) {
			if (parse_uint64(val, &part_msg_ptr->max_mem_per_cpu)) {
				error ("Invalid MaxMemPerCPU value: %s", val);
				return SLURM_ERROR;
			}
			part_msg_ptr->max_mem_per_cpu |= MEM_PER_CPU;
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "MaxMemPerNode", MAX(taglen, 10))) {
			if (parse_uint64(val, &part_msg_ptr->max_mem_per_cpu)) {
				error ("Invalid MaxMemPerNode value: %s", val);
				return SLURM_ERROR;
			}
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "QoS", MAX(taglen, 3))) {
			part_msg_ptr->qos_char = val;
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "JobDefaults", MAX(taglen, 4))) {
			part_msg_ptr->job_defaults_str = val;
			(*update_cnt_ptr)++;
		} else if (!xstrncasecmp(tag, "Topology", MAX(taglen, 4))) {
			part_msg_ptr->topology_name = val;
			(*update_cnt_ptr)++;
		}
		else if (!xstrncasecmp(tag, "TresBillingWeights",
				       MAX(taglen, 1))) {
			part_msg_ptr->billing_weights_str = val;
			(*update_cnt_ptr)++;
		}
		else {
			exit_code = 1;
			error("Update of this parameter is not supported: %s\n",
			      argv[i]);
			error("Request aborted");
			return SLURM_ERROR;
		}
	}
	return SLURM_SUCCESS;
}


/*
 * scontrol_update_part - update the slurm partition configuration per the
 *	supplied arguments
 * IN argc - count of arguments
 * IN argv - list of arguments
 * RET SLURM_SUCCESS if no slurm error, errno otherwise. parsing error prints
 *			error message and returns SLURM_SUCCESS
 */
extern int
scontrol_update_part (int argc, char **argv)
{
	int update_cnt = 0;
	update_part_msg_t part_msg;
	int err;

	slurm_init_part_desc_msg ( &part_msg );
	err = scontrol_parse_part_options (argc, argv, &update_cnt, &part_msg);
	if (err)
		return err;

	if (part_msg.name == NULL) {
		exit_code = 1;
		error("PartitionName must be given.");
		return SLURM_SUCCESS;
	}
	if (update_cnt <= 1) {
		exit_code = 1;
		error("No changes specified");
		return SLURM_SUCCESS;
	}

	if (slurm_update_partition(&part_msg)) {
		exit_code = 1;
		return errno;
	} else
		return SLURM_SUCCESS;
}


/*
 * scontrol_create_part - create a slurm partition configuration per the
 *	supplied arguments
 * IN argc - count of arguments
 * IN argv - list of arguments
 * RET SLURM_SUCCESS if no slurm error, errno otherwise. parsing error prints
 *			error message and returns SLURM_SUCCESS
 */
extern int
scontrol_create_part (int argc, char **argv)
{
	int update_cnt = 0;
	update_part_msg_t part_msg;
	int err;

	slurm_init_part_desc_msg ( &part_msg );
	err = scontrol_parse_part_options (argc, argv, &update_cnt, &part_msg);
	if (err)
		return err;

	if (part_msg.name == NULL) {
		exit_code = 1;
		error("PartitionName must be given.");
		return SLURM_SUCCESS;
	} else if (xstrcasecmp(part_msg.name, "default") == 0) {
		exit_code = 1;
		error("PartitionName cannot be \"DEFAULT\".");
		return SLURM_SUCCESS;
	}

	if (update_cnt == 0) {
		exit_code = 1;
		error("No parameters specified");
		return SLURM_SUCCESS;
	}

	if (slurm_create_partition(&part_msg)) {
		exit_code = 1;
		slurm_perror("Error creating the partition");
		return errno;
	} else
		return SLURM_SUCCESS;
}