/*
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 (
	"strings"
	"time"

	"github.com/cgrates/birpc/context"
	"github.com/cgrates/cgrates/utils"
)

// GeneralCfg is the general config section
type GeneralCfg struct {
	NodeID           string        // Identifier for this engine instance
	Logger           string        // dictates the way logs are displayed/stored
	LogLevel         int           // system wide log level, nothing higher than this will be logged
	RoundingDecimals int           // Number of decimals to round end prices at
	DBDataEncoding   string        // The encoding used to store object data in strings: <msgpack|json>
	TpExportPath     string        // Path towards export folder for offline Tariff Plans
	PosterAttempts   int           // Time to wait before writing the failed posts in a single file
	FailedPostsDir   string        // Directory path where we store failed http requests
	FailedPostsTTL   time.Duration // Directory path where we store failed http requests
	DefaultReqType   string        // Use this request type if not defined on top
	DefaultCategory  string        // set default type of record
	DefaultTenant    string        // set default tenant
	DefaultTimezone  string        // default timezone for timestamps where not specified <""|UTC|Local|$IANA_TZ_DB>
	DefaultCaching   string
	ConnectAttempts  int           // number of initial connection attempts before giving up
	Reconnects       int           // number of recconect attempts in case of connection lost <-1 for infinite | nb>
	ConnectTimeout   time.Duration // timeout for RPC connection attempts
	ReplyTimeout     time.Duration // timeout replies if not reaching back
	LockingTimeout   time.Duration // locking mechanism timeout to avoid deadlocks
	DigestSeparator  string        //
	DigestEqual      string        //
	RSRSep           string        // separator used to split RSRParser (by default is used ";")
	MaxParallelConns int           // the maximum number of connections used by the *parallel strategy
}

// loadGeneralCfg loads the General section of the configuration
func (gencfg *GeneralCfg) Load(ctx *context.Context, jsnCfg ConfigDB, _ *CGRConfig) (err error) {
	jsnGeneralCfg := new(GeneralJsonCfg)
	if err = jsnCfg.GetSection(ctx, GeneralJSON, jsnGeneralCfg); err != nil {
		return
	}
	return gencfg.loadFromJSONCfg(jsnGeneralCfg)
}

// loadFromJSONCfg loads General config from JsonCfg
func (gencfg *GeneralCfg) loadFromJSONCfg(jsnGeneralCfg *GeneralJsonCfg) (err error) {
	if jsnGeneralCfg == nil {
		return nil
	}
	if jsnGeneralCfg.Node_id != nil && *jsnGeneralCfg.Node_id != "" {
		gencfg.NodeID = *jsnGeneralCfg.Node_id
	}
	if jsnGeneralCfg.Logger != nil {
		gencfg.Logger = *jsnGeneralCfg.Logger
	}
	if jsnGeneralCfg.Log_level != nil {
		gencfg.LogLevel = *jsnGeneralCfg.Log_level
	}

	if jsnGeneralCfg.Dbdata_encoding != nil {
		gencfg.DBDataEncoding = strings.TrimPrefix(*jsnGeneralCfg.Dbdata_encoding, "*")
	}
	if jsnGeneralCfg.Default_request_type != nil {
		gencfg.DefaultReqType = *jsnGeneralCfg.Default_request_type
	}
	if jsnGeneralCfg.Default_category != nil {
		gencfg.DefaultCategory = *jsnGeneralCfg.Default_category
	}
	if jsnGeneralCfg.Default_tenant != nil {
		gencfg.DefaultTenant = *jsnGeneralCfg.Default_tenant
	}
	if jsnGeneralCfg.Connect_attempts != nil {
		gencfg.ConnectAttempts = *jsnGeneralCfg.Connect_attempts
	}
	if jsnGeneralCfg.Reconnects != nil {
		gencfg.Reconnects = *jsnGeneralCfg.Reconnects
	}
	if jsnGeneralCfg.Connect_timeout != nil {
		if gencfg.ConnectTimeout, err = utils.ParseDurationWithNanosecs(*jsnGeneralCfg.Connect_timeout); err != nil {
			return err
		}
	}
	if jsnGeneralCfg.Reply_timeout != nil {
		if gencfg.ReplyTimeout, err = utils.ParseDurationWithNanosecs(*jsnGeneralCfg.Reply_timeout); err != nil {
			return err
		}
	}
	if jsnGeneralCfg.Rounding_decimals != nil {
		gencfg.RoundingDecimals = *jsnGeneralCfg.Rounding_decimals
	}
	if jsnGeneralCfg.Tpexport_dir != nil {
		gencfg.TpExportPath = *jsnGeneralCfg.Tpexport_dir
	}
	if jsnGeneralCfg.Poster_attempts != nil {
		gencfg.PosterAttempts = *jsnGeneralCfg.Poster_attempts
	}
	if jsnGeneralCfg.Failed_posts_dir != nil {
		gencfg.FailedPostsDir = *jsnGeneralCfg.Failed_posts_dir
	}
	if jsnGeneralCfg.Failed_posts_ttl != nil {
		if gencfg.FailedPostsTTL, err = utils.ParseDurationWithNanosecs(*jsnGeneralCfg.Failed_posts_ttl); err != nil {
			return err
		}
	}
	if jsnGeneralCfg.Default_timezone != nil {
		gencfg.DefaultTimezone = *jsnGeneralCfg.Default_timezone
	}
	if jsnGeneralCfg.Default_caching != nil {
		gencfg.DefaultCaching = *jsnGeneralCfg.Default_caching
	}
	if jsnGeneralCfg.Locking_timeout != nil {
		if gencfg.LockingTimeout, err = utils.ParseDurationWithNanosecs(*jsnGeneralCfg.Locking_timeout); err != nil {
			return err
		}
	}
	if jsnGeneralCfg.Digest_separator != nil {
		gencfg.DigestSeparator = *jsnGeneralCfg.Digest_separator
	}
	if jsnGeneralCfg.Digest_equal != nil {
		gencfg.DigestEqual = *jsnGeneralCfg.Digest_equal
	}
	if jsnGeneralCfg.Rsr_separator != nil {
		gencfg.RSRSep = *jsnGeneralCfg.Rsr_separator
	}
	if jsnGeneralCfg.Max_parallel_conns != nil {
		gencfg.MaxParallelConns = *jsnGeneralCfg.Max_parallel_conns
	}

	return nil
}

// AsMapInterface returns the config as a map[string]interface{}
func (gencfg GeneralCfg) AsMapInterface(string) interface{} {
	mp := map[string]interface{}{
		utils.NodeIDCfg:           gencfg.NodeID,
		utils.LoggerCfg:           gencfg.Logger,
		utils.LogLevelCfg:         gencfg.LogLevel,
		utils.RoundingDecimalsCfg: gencfg.RoundingDecimals,
		utils.DBDataEncodingCfg:   utils.Meta + gencfg.DBDataEncoding,
		utils.TpExportPathCfg:     gencfg.TpExportPath,
		utils.PosterAttemptsCfg:   gencfg.PosterAttempts,
		utils.FailedPostsDirCfg:   gencfg.FailedPostsDir,
		utils.DefaultReqTypeCfg:   gencfg.DefaultReqType,
		utils.DefaultCategoryCfg:  gencfg.DefaultCategory,
		utils.DefaultTenantCfg:    gencfg.DefaultTenant,
		utils.DefaultTimezoneCfg:  gencfg.DefaultTimezone,
		utils.DefaultCachingCfg:   gencfg.DefaultCaching,
		utils.ConnectAttemptsCfg:  gencfg.ConnectAttempts,
		utils.ReconnectsCfg:       gencfg.Reconnects,
		utils.DigestSeparatorCfg:  gencfg.DigestSeparator,
		utils.DigestEqualCfg:      gencfg.DigestEqual,
		utils.RSRSepCfg:           gencfg.RSRSep,
		utils.MaxParallelConnsCfg: gencfg.MaxParallelConns,
		utils.LockingTimeoutCfg:   "0",
		utils.FailedPostsTTLCfg:   "0",
		utils.ConnectTimeoutCfg:   "0",
		utils.ReplyTimeoutCfg:     "0",
	}

	if gencfg.LockingTimeout != 0 {
		mp[utils.LockingTimeoutCfg] = gencfg.LockingTimeout.String()
	}

	if gencfg.FailedPostsTTL != 0 {
		mp[utils.FailedPostsTTLCfg] = gencfg.FailedPostsTTL.String()
	}

	if gencfg.ConnectTimeout != 0 {
		mp[utils.ConnectTimeoutCfg] = gencfg.ConnectTimeout.String()
	}

	if gencfg.ReplyTimeout != 0 {
		mp[utils.ReplyTimeoutCfg] = gencfg.ReplyTimeout.String()
	}

	return mp
}

func (GeneralCfg) SName() string                { return GeneralJSON }
func (gencfg GeneralCfg) CloneSection() Section { return gencfg.Clone() }

// Clone returns a deep copy of GeneralCfg
func (gencfg GeneralCfg) Clone() *GeneralCfg {
	return &GeneralCfg{
		NodeID:           gencfg.NodeID,
		Logger:           gencfg.Logger,
		LogLevel:         gencfg.LogLevel,
		RoundingDecimals: gencfg.RoundingDecimals,
		DBDataEncoding:   gencfg.DBDataEncoding,
		TpExportPath:     gencfg.TpExportPath,
		PosterAttempts:   gencfg.PosterAttempts,
		FailedPostsDir:   gencfg.FailedPostsDir,
		FailedPostsTTL:   gencfg.FailedPostsTTL,
		DefaultReqType:   gencfg.DefaultReqType,
		DefaultCategory:  gencfg.DefaultCategory,
		DefaultTenant:    gencfg.DefaultTenant,
		DefaultTimezone:  gencfg.DefaultTimezone,
		DefaultCaching:   gencfg.DefaultCaching,
		ConnectAttempts:  gencfg.ConnectAttempts,
		Reconnects:       gencfg.Reconnects,
		ConnectTimeout:   gencfg.ConnectTimeout,
		ReplyTimeout:     gencfg.ReplyTimeout,
		LockingTimeout:   gencfg.LockingTimeout,
		DigestSeparator:  gencfg.DigestSeparator,
		DigestEqual:      gencfg.DigestEqual,
		RSRSep:           gencfg.RSRSep,
		MaxParallelConns: gencfg.MaxParallelConns,
	}
}

// General config section
type GeneralJsonCfg struct {
	Node_id              *string
	Logger               *string
	Log_level            *int
	Rounding_decimals    *int
	Dbdata_encoding      *string
	Tpexport_dir         *string
	Poster_attempts      *int
	Failed_posts_dir     *string
	Failed_posts_ttl     *string
	Default_request_type *string
	Default_category     *string
	Default_tenant       *string
	Default_timezone     *string
	Default_caching      *string
	Connect_attempts     *int
	Reconnects           *int
	Connect_timeout      *string
	Reply_timeout        *string
	Locking_timeout      *string
	Digest_separator     *string
	Digest_equal         *string
	Rsr_separator        *string
	Max_parallel_conns   *int
}

func diffGeneralJsonCfg(d *GeneralJsonCfg, v1, v2 *GeneralCfg) *GeneralJsonCfg {
	if d == nil {
		d = new(GeneralJsonCfg)
	}

	if v1.NodeID != v2.NodeID {
		d.Node_id = utils.StringPointer(v2.NodeID)
	}
	if v1.Logger != v2.Logger {
		d.Logger = utils.StringPointer(v2.Logger)
	}
	if v1.LogLevel != v2.LogLevel {
		d.Log_level = utils.IntPointer(v2.LogLevel)
	}
	if v1.RoundingDecimals != v2.RoundingDecimals {
		d.Rounding_decimals = utils.IntPointer(v2.RoundingDecimals)
	}
	if v1.DBDataEncoding != v2.DBDataEncoding {
		d.Dbdata_encoding = utils.StringPointer(v2.DBDataEncoding)
	}
	if v1.TpExportPath != v2.TpExportPath {
		d.Tpexport_dir = utils.StringPointer(v2.TpExportPath)
	}
	if v1.PosterAttempts != v2.PosterAttempts {
		d.Poster_attempts = utils.IntPointer(v2.PosterAttempts)
	}
	if v1.FailedPostsDir != v2.FailedPostsDir {
		d.Failed_posts_dir = utils.StringPointer(v2.FailedPostsDir)
	}
	if v1.FailedPostsTTL != v2.FailedPostsTTL {
		d.Failed_posts_ttl = utils.StringPointer(v2.FailedPostsTTL.String())
	}
	if v1.DefaultReqType != v2.DefaultReqType {
		d.Default_request_type = utils.StringPointer(v2.DefaultReqType)
	}
	if v1.DefaultCategory != v2.DefaultCategory {
		d.Default_category = utils.StringPointer(v2.DefaultCategory)
	}
	if v1.DefaultTenant != v2.DefaultTenant {
		d.Default_tenant = utils.StringPointer(v2.DefaultTenant)
	}
	if v1.DefaultTimezone != v2.DefaultTimezone {
		d.Default_timezone = utils.StringPointer(v2.DefaultTimezone)
	}
	if v1.DefaultCaching != v2.DefaultCaching {
		d.Default_caching = utils.StringPointer(v2.DefaultCaching)
	}
	if v1.ConnectAttempts != v2.ConnectAttempts {
		d.Connect_attempts = utils.IntPointer(v2.ConnectAttempts)
	}
	if v1.Reconnects != v2.Reconnects {
		d.Reconnects = utils.IntPointer(v2.Reconnects)
	}
	if v1.ConnectTimeout != v2.ConnectTimeout {
		d.Connect_timeout = utils.StringPointer(v2.ConnectTimeout.String())
	}
	if v1.ReplyTimeout != v2.ReplyTimeout {
		d.Reply_timeout = utils.StringPointer(v2.ReplyTimeout.String())
	}
	if v1.LockingTimeout != v2.LockingTimeout {
		d.Locking_timeout = utils.StringPointer(v2.LockingTimeout.String())
	}
	if v1.DigestSeparator != v2.DigestSeparator {
		d.Digest_separator = utils.StringPointer(v2.DigestSeparator)
	}
	if v1.DigestEqual != v2.DigestEqual {
		d.Digest_equal = utils.StringPointer(v2.DigestEqual)
	}
	if v1.RSRSep != v2.RSRSep {
		d.Rsr_separator = utils.StringPointer(v2.RSRSep)
	}
	if v1.MaxParallelConns != v2.MaxParallelConns {
		d.Max_parallel_conns = utils.IntPointer(v2.MaxParallelConns)
	}
	return d
}