/*
Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
Copyright (C) ITsysCOM GmbH

This program 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 3 of the License, or
(at your option) any later version.

This program 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 this program.  If not, see <http://www.gnu.org/licenses/>
*/

package config

import "github.com/cgrates/cgrates/utils"

// AttributeSCfg is the configuration of attribute service
type AttributeSCfg struct {
	Enabled             bool
	ResourceSConns      []string
	StatSConns          []string
	ApierSConns         []string
	IndexedSelects      bool
	StringIndexedFields *[]string
	PrefixIndexedFields *[]string
	SuffixIndexedFields *[]string
	ProcessRuns         int
	NestedFields        bool
}

func (alS *AttributeSCfg) loadFromJSONCfg(jsnCfg *AttributeSJsonCfg) (err error) {
	if jsnCfg == nil {
		return
	}
	if jsnCfg.Enabled != nil {
		alS.Enabled = *jsnCfg.Enabled
	}
	if jsnCfg.Stats_conns != nil {
		alS.StatSConns = updateInternalConns(*jsnCfg.Stats_conns, utils.MetaStats)
	}
	if jsnCfg.Resources_conns != nil {
		alS.ResourceSConns = updateInternalConns(*jsnCfg.Resources_conns, utils.MetaResources)
	}
	if jsnCfg.Admins_conns != nil {
		alS.ApierSConns = updateInternalConns(*jsnCfg.Admins_conns, utils.MetaAdminS)
	}
	if jsnCfg.Indexed_selects != nil {
		alS.IndexedSelects = *jsnCfg.Indexed_selects
	}
	if jsnCfg.String_indexed_fields != nil {
		alS.StringIndexedFields = utils.SliceStringPointer(utils.CloneStringSlice(*jsnCfg.String_indexed_fields))
	}
	if jsnCfg.Prefix_indexed_fields != nil {
		alS.PrefixIndexedFields = utils.SliceStringPointer(utils.CloneStringSlice(*jsnCfg.Prefix_indexed_fields))
	}
	if jsnCfg.Suffix_indexed_fields != nil {
		alS.SuffixIndexedFields = utils.SliceStringPointer(utils.CloneStringSlice(*jsnCfg.Suffix_indexed_fields))
	}
	if jsnCfg.Process_runs != nil {
		alS.ProcessRuns = *jsnCfg.Process_runs
	}
	if jsnCfg.Nested_fields != nil {
		alS.NestedFields = *jsnCfg.Nested_fields
	}
	return
}

// AsMapInterface returns the config as a map[string]interface{}
func (alS *AttributeSCfg) AsMapInterface() (initialMP map[string]interface{}) {
	initialMP = map[string]interface{}{
		utils.EnabledCfg:        alS.Enabled,
		utils.IndexedSelectsCfg: alS.IndexedSelects,
		utils.ProcessRunsCfg:    alS.ProcessRuns,
		utils.NestedFieldsCfg:   alS.NestedFields,
	}
	if alS.StringIndexedFields != nil {
		initialMP[utils.StringIndexedFieldsCfg] = utils.CloneStringSlice(*alS.StringIndexedFields)
	}
	if alS.PrefixIndexedFields != nil {
		initialMP[utils.PrefixIndexedFieldsCfg] = utils.CloneStringSlice(*alS.PrefixIndexedFields)
	}
	if alS.SuffixIndexedFields != nil {
		initialMP[utils.SuffixIndexedFieldsCfg] = utils.CloneStringSlice(*alS.SuffixIndexedFields)
	}
	if alS.StatSConns != nil {
		initialMP[utils.StatSConnsCfg] = getInternalJSONConns(alS.StatSConns)
	}

	if alS.ResourceSConns != nil {
		initialMP[utils.ResourceSConnsCfg] = getInternalJSONConns(alS.ResourceSConns)
	}
	if alS.ApierSConns != nil {
		initialMP[utils.AdminSConnsCfg] = getInternalJSONConns(alS.ApierSConns)
	}
	return
}

// Clone returns a deep copy of AttributeSCfg
func (alS AttributeSCfg) Clone() (cln *AttributeSCfg) {
	cln = &AttributeSCfg{
		Enabled:        alS.Enabled,
		IndexedSelects: alS.IndexedSelects,
		NestedFields:   alS.NestedFields,
		ProcessRuns:    alS.ProcessRuns,
	}
	if alS.ResourceSConns != nil {
		cln.ResourceSConns = utils.CloneStringSlice(alS.ResourceSConns)
	}
	if alS.StatSConns != nil {
		cln.StatSConns = utils.CloneStringSlice(alS.StatSConns)
	}
	if alS.ApierSConns != nil {
		cln.ApierSConns = utils.CloneStringSlice(alS.ApierSConns)
	}

	if alS.StringIndexedFields != nil {
		cln.StringIndexedFields = utils.SliceStringPointer(utils.CloneStringSlice(*alS.StringIndexedFields))
	}
	if alS.PrefixIndexedFields != nil {
		cln.PrefixIndexedFields = utils.SliceStringPointer(utils.CloneStringSlice(*alS.PrefixIndexedFields))
	}
	if alS.SuffixIndexedFields != nil {
		cln.SuffixIndexedFields = utils.SliceStringPointer(utils.CloneStringSlice(*alS.SuffixIndexedFields))
	}
	return
}

// Attribute service config section
type AttributeSJsonCfg struct {
	Enabled               *bool
	Stats_conns           *[]string
	Resources_conns       *[]string
	Admins_conns          *[]string
	Indexed_selects       *bool
	String_indexed_fields *[]string
	Prefix_indexed_fields *[]string
	Suffix_indexed_fields *[]string
	Nested_fields         *bool // applies when indexed fields is not defined
	Process_runs          *int
}

func diffAttributeSJsonCfg(d *AttributeSJsonCfg, v1, v2 *AttributeSCfg) *AttributeSJsonCfg {
	if d == nil {
		d = new(AttributeSJsonCfg)
	}
	if v1.Enabled != v2.Enabled {
		d.Enabled = utils.BoolPointer(v2.Enabled)
	}
	if !utils.SliceStringEqual(v1.ResourceSConns, v2.ResourceSConns) {
		d.Stats_conns = utils.SliceStringPointer(getInternalJSONConns(v2.ResourceSConns))
	}
	if !utils.SliceStringEqual(v1.StatSConns, v2.StatSConns) {
		d.Resources_conns = utils.SliceStringPointer(getInternalJSONConns(v2.StatSConns))
	}
	if !utils.SliceStringEqual(v1.ApierSConns, v2.ApierSConns) {
		d.Admins_conns = utils.SliceStringPointer(getInternalJSONConns(v2.ApierSConns))
	}
	if v1.IndexedSelects != v2.IndexedSelects {
		d.Indexed_selects = utils.BoolPointer(v2.IndexedSelects)
	}
	d.String_indexed_fields = diffIndexSlice(d.String_indexed_fields, v1.StringIndexedFields, v2.StringIndexedFields)
	d.Prefix_indexed_fields = diffIndexSlice(d.Prefix_indexed_fields, v1.PrefixIndexedFields, v2.PrefixIndexedFields)
	d.Suffix_indexed_fields = diffIndexSlice(d.Suffix_indexed_fields, v1.SuffixIndexedFields, v2.SuffixIndexedFields)
	if v1.ProcessRuns != v2.ProcessRuns {
		d.Process_runs = utils.IntPointer(v2.ProcessRuns)
	}
	if v1.NestedFields != v2.NestedFields {
		d.Nested_fields = utils.BoolPointer(v2.NestedFields)
	}
	return d
}

func diffIndexSlice(d, v1, v2 *[]string) *[]string {
	if v2 == nil {
		return nil
	}
	if v1 == nil || !utils.SliceStringEqual(*v1, *v2) {
		d = utils.SliceStringPointer(utils.CloneStringSlice(*v2))
	}
	return d
}