yoake/internal/comm/provider.go
2022-11-11 17:16:53 -05:00

72 lines
2.1 KiB
Go

package comm
import (
"errors"
"log"
"github.com/eternal-flame-AD/yoake/internal/comm/email"
"github.com/eternal-flame-AD/yoake/internal/comm/gotify"
"github.com/eternal-flame-AD/yoake/internal/comm/model"
)
type CommProvider struct {
communicators map[string]Communicator
fallbackCommunicators []string
}
var (
errMethodNotSupported = errors.New("method not supported")
)
func (c *CommProvider) actualSendGenericMessage(tryMethod string, message model.GenericMessage) error {
if comm, ok := c.communicators[tryMethod]; ok {
if convertedMsg, err := ConvertGenericMessage(&message, comm.SupportedMIME()); err == nil {
return comm.SendGenericMessage(*convertedMsg)
} else {
return err
}
}
return errMethodNotSupported
}
func (c *CommProvider) SendGenericMessage(preferredMethod string, message model.GenericMessage) error {
if preferredMethod == "" {
preferredMethod = c.fallbackCommunicators[0]
}
if err := c.actualSendGenericMessage(preferredMethod, message); err != nil {
log.Printf("Failed to send message using preferred method %s: %v. trying fallback methods", preferredMethod, err)
for _, fallback := range c.fallbackCommunicators {
if fallback == preferredMethod {
continue
}
if err := c.actualSendGenericMessage(fallback, message); err == nil {
log.Printf("Sent message using fallback method %s", fallback)
return nil
} else {
log.Printf("Failed to send message using fallback method %s: %v", fallback, err)
}
}
return err
}
return nil
}
func InitializeCommProvider() *CommProvider {
comm := &CommProvider{
communicators: make(map[string]Communicator),
}
if emailHandler, err := email.NewHandler(); err == nil {
comm.communicators["email"] = emailHandler
comm.fallbackCommunicators = append(comm.fallbackCommunicators, "email")
} else {
log.Printf("Failed to initialize email communicator: %v", err)
}
if gotifyHandler, err := gotify.NewClient(); err == nil {
comm.communicators["gotify"] = gotifyHandler
comm.fallbackCommunicators = append(comm.fallbackCommunicators, "gotify")
} else {
log.Printf("Failed to initialize gotify communicator: %v", err)
}
return comm
}