44 lines
1.2 KiB
Go
44 lines
1.2 KiB
Go
package push
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import (
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"fmt"
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"strings"
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)
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// Messenger implements message sending
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type Messenger interface {
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Send(title, msg string)
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}
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type senderRegistry map[string]func(map[string]interface{}) (Messenger, error)
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func (r senderRegistry) Add(name string, factory func(map[string]interface{}) (Messenger, error)) {
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if _, exists := r[name]; exists {
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panic(fmt.Sprintf("cannot register duplicate messenger type: %s", name))
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}
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r[name] = factory
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}
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func (r senderRegistry) Get(name string) (func(map[string]interface{}) (Messenger, error), error) {
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factory, exists := r[name]
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if !exists {
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return nil, fmt.Errorf("messenger type not registered: %s", name)
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}
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return factory, nil
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}
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var registry senderRegistry = make(map[string]func(map[string]interface{}) (Messenger, error))
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// NewFromConfig creates messenger from configuration
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func NewFromConfig(typ string, other map[string]interface{}) (v Messenger, err error) {
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factory, err := registry.Get(strings.ToLower(typ))
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if err == nil {
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if v, err = factory(other); err != nil {
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err = fmt.Errorf("cannot create messenger '%s': %w", typ, err)
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}
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} else {
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err = fmt.Errorf("invalid messenger type: %s", typ)
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}
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return
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}
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