58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
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package v2
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import (
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"context"
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"fmt"
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"forge.cadoles.com/cadoles/go-emlid/reach/client/protocol"
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"forge.cadoles.com/cadoles/go-emlid/reach/client/protocol/v2/api"
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"forge.cadoles.com/cadoles/go-emlid/reach/client/protocol/v2/http"
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"github.com/Masterminds/semver/v3"
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"github.com/pkg/errors"
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)
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const Identifier protocol.Identifier = "v2"
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const compatibleVersionConstraint = ">= 32"
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type Protocol struct {
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}
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// Available implements protocol.Protocol.
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func (p *Protocol) Available(ctx context.Context, addr string) (protocol.Operations, error) {
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url := fmt.Sprintf("http://%s/info", addr)
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info := api.Info{}
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if err := http.GetJSON(url, &info); err != nil {
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return nil, errors.WithStack(err)
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}
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versionConstraint, err := semver.NewConstraint(compatibleVersionConstraint)
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if err != nil {
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return nil, errors.WithStack(err)
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}
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version, err := semver.NewVersion(info.Reachview.Version)
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if err != nil {
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return nil, errors.WithStack(err)
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}
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if !versionConstraint.Check(version) {
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return nil, errors.Errorf("reachview version '%s' does not match constraint '%s'", info.Reachview.Version, compatibleVersionConstraint)
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}
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return &Operations{addr: addr}, nil
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}
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// Identifier implements protocol.Protocol.
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func (p *Protocol) Identifier() protocol.Identifier {
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return Identifier
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}
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// Operations implements protocol.Protocol.
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func (p *Protocol) Operations(addr string) protocol.Operations {
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return &Operations{addr: addr}
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}
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var _ protocol.Protocol = &Protocol{}
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