/*
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements.  See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License.  You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package bridge

import (
	"context"

	"github.com/apache/incubator-devlake/core/config"
	ctx "github.com/apache/incubator-devlake/core/context"
	"github.com/apache/incubator-devlake/core/dal"
	"github.com/apache/incubator-devlake/core/log"
	"github.com/apache/incubator-devlake/core/plugin"
	"github.com/apache/incubator-devlake/impls/logruslog"
	"github.com/spf13/viper"
)

var DefaultContext = NewRemoteContext(logruslog.Global, config.GetConfig())

type RemoteProgress struct {
	Current   int `json:"current"`
	Total     int `json:"total"`
	Increment int `json:"increment"`
}

type RemoteContext interface {
	plugin.ExecContext
	GetRemoteConfig() *RemoteConfig
}

// RemoteConfig holds common configuration for all remote calls
type RemoteConfig struct {
	LogLevel string `json:"log_level"`
}

type remoteContextImpl struct {
	parent       plugin.ExecContext
	logger       log.Logger
	ctx          context.Context
	remoteConfig *RemoteConfig
}

func (r remoteContextImpl) GetRemoteConfig() *RemoteConfig {
	return r.remoteConfig
}

func (r remoteContextImpl) GetConfigReader() config.ConfigReader {
	return r.parent.GetConfigReader()
}

func (r remoteContextImpl) ReplaceLogger(logger log.Logger) ctx.BasicRes {
	return &remoteContextImpl{
		parent: r.parent,
		logger: logger,
		ctx:    r.ctx,
	}
}

func (r remoteContextImpl) NestedLogger(name string) ctx.BasicRes {
	return r.ReplaceLogger(r.logger.Nested(name))
}

func NewRemoteContext(logger log.Logger, cfg *viper.Viper) RemoteContext {
	remoteCfg := &RemoteConfig{
		LogLevel: cfg.GetString("LOGGING_LEVEL"),
	}
	return &remoteContextImpl{
		logger:       logger,
		ctx:          context.Background(),
		remoteConfig: remoteCfg,
	}
}

func NewChildRemoteContext(ec plugin.ExecContext) RemoteContext {
	return &remoteContextImpl{
		parent: ec,
		logger: ec.GetLogger(),
		ctx:    ec.GetContext(),
	}
}

func (r remoteContextImpl) GetConfig(name string) string {
	return config.GetConfig().GetString(name)
}

func (r remoteContextImpl) GetLogger() log.Logger {
	return r.logger
}

func (r remoteContextImpl) GetDal() dal.Dal {
	if r.parent != nil {
		return r.parent.GetDal()
	}
	return nil
}

func (r remoteContextImpl) GetName() string {
	if r.parent != nil {
		return r.parent.GetName()
	}
	return "default_remote"
}

func (r remoteContextImpl) GetContext() context.Context {
	return r.ctx
}

func (r remoteContextImpl) GetData() interface{} {
	if r.parent != nil {
		return r.parent.GetData()
	}
	return nil
}

func (r remoteContextImpl) SetProgress(current int, total int) {
	if r.parent != nil {
		r.parent.SetProgress(current, total)
	}
}

func (r remoteContextImpl) IncProgress(quantity int) {
	if r.parent != nil {
		r.parent.IncProgress(quantity)
	}
}

var _ RemoteContext = (*remoteContextImpl)(nil)
