50 lines
1.1 KiB
Go
50 lines
1.1 KiB
Go
package app
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import (
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"fmt"
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"log/slog"
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)
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// Module represents a sub-system of the application, with its setup and
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// teardown functions and dependencies.
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type Module struct {
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logger *slog.Logger
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name string
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setup setupFn
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teardown teardownFn
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depends []*Module
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}
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// ModuleOpts contains user-exposed options when defining a module.
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type ModuleOpts struct {
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// Setup is the setup function for the module.
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Setup setupFn
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// Teardown is the teardown function for the module.
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Teardown teardownFn
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// Depends is a list of modules that this module depends on.
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Depends []*Module
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}
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// NewModule creates a new Module instance with the given name and options.
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func NewModule(name string, opts ModuleOpts) *Module {
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return &Module{
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name: name,
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setup: opts.Setup,
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teardown: opts.Teardown,
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depends: opts.Depends,
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}
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}
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// Logger returns the logger for the module.
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func (s *Module) Logger() *slog.Logger {
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if s.logger == nil {
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panic(fmt.Sprintf("subsytem %s used before logger was initialized", s.name))
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}
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return s.logger
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}
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// Name returns the name of the module.
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func (s *Module) Name() string {
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return s.name
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}
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