package crawler

import (
	configM "git.loafle.net/overflow/overflow_commons_go/modules/config/model"
)

type Crawler interface {
	Init(config *configM.Config) error
	Add(config *configM.Config) error
	Remove(id string) error
	Get(id string) (map[string]string, error)

	Name() string
}

type InternalCrawler interface {
	InternalGet(config *configM.Config) (map[string]string, error)
}

type Crawlers struct {
	configs map[string]*configM.Config

	Internal InternalCrawler
}

func (c *Crawlers) GetConfig(id string) *configM.Config {
	if nil == c.configs {
		return nil
	}
	return c.configs[id]
}

func (c *Crawlers) RemoveConfig(id string) {
	if nil == c.configs {
		return
	}
	delete(c.configs, id)
}

func (c *Crawlers) PutConfig(id string, config *configM.Config) {
	if nil == c.configs {
		c.configs = make(map[string]*configM.Config, 0)
	}
	c.configs[id] = config
}

func (c *Crawlers) Init(config *configM.Config) error {
	c.PutConfig(config.ID.String(), config)
	return nil
}

func (c *Crawlers) Add(config *configM.Config) error {
	c.PutConfig(config.ID.String(), config)
	return nil
}

func (c *Crawlers) Remove(id string) error {
	c.RemoveConfig(id)
	return nil
}

func (c *Crawlers) Get(id string) (map[string]string, error) {
	rss, err := c.Internal.InternalGet(c.GetConfig(id))
	if nil != err {
		return nil, err
	}
	return rss, nil
}