mirror of
https://github.com/logos-storage/logos-storage-network-crawler.git
synced 2026-01-02 13:33:08 +00:00
88 lines
2.4 KiB
Nim
88 lines
2.4 KiB
Nim
import std/os
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import pkg/chronicles
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import pkg/chronos
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import pkg/questionable
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import pkg/questionable/results
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import pkg/metrics
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import ./config
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import ./utils/logging
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import ./utils/asyncdataevent
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import ./installer
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import ./state
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import ./component
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import ./types
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type Application* = ref object
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state: State
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components: seq[Component]
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proc initializeApp(app: Application, config: Config): Future[?!void] {.async: (raises: [CancelledError]).} =
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app.state = State(
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status: ApplicationStatus.Running,
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config: config,
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events: Events(
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nodesFound: newAsyncDataEvent[seq[Nid]](),
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newNodesDiscovered: newAsyncDataEvent[seq[Nid]](),
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dhtNodeCheck: newAsyncDataEvent[DhtNodeCheckEventData](),
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nodesToRevisit: newAsyncDataEvent[seq[Nid]](),
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nodesDeleted: newAsyncDataEvent[seq[Nid]](),
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),
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)
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without components =? (await createComponents(app.state)), err:
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error "Failed to create componenents", err = err.msg
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return failure(err)
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app.components = components
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for c in components:
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if err =? (await c.awake()).errorOption:
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error "Failed during component awake", err = err.msg
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return failure(err)
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for c in components:
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if err =? (await c.start()).errorOption:
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error "Failed during component start", err = err.msg
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return failure(err)
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return success()
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proc stopComponents(app: Application) {.async: (raises: [CancelledError]).} =
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for c in app.components:
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if err =? (await c.stop()).errorOption:
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error "Failed to stop component", err = err.msg
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proc stop*(app: Application) =
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app.state.status = ApplicationStatus.Stopping
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proc run*(app: Application) =
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let config = parseConfig()
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info "Loaded configuration", config = $config
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# Configure loglevel
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updateLogLevel(config.logLevel)
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# Ensure datadir path exists:
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if not existsDir(config.dataDir):
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createDir(config.dataDir)
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info "Metrics endpoint initialized"
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info "Starting application"
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if err =? (waitFor app.initializeApp(config)).errorOption:
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app.state.status = ApplicationStatus.Stopping
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error "Failed to start application", err = err.msg
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return
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while app.state.status == ApplicationStatus.Running:
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try:
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chronos.poll()
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except Exception as exc:
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error "Unhandled exception", msg = exc.msg
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quit QuitFailure
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notice "Application stopping..."
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waitFor app.stopComponents()
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notice "Application stopped"
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