84 lines
1.8 KiB
Go
84 lines
1.8 KiB
Go
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// Copyright 2024 Matthew Rich <matthewrich.conf@gmail.com>. All rights reserved.
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package folio
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import (
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"decl/internal/data"
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"errors"
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"log/slog"
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)
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// Dependencies describe a requirement on a given system property
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// system properties:
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// loaded from config
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//
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// deps assigned to decl
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// match values in document configurations
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// match values in all configurations?
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//
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// documents/facter.jx.yaml -> facts -> Get(key)
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//
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// ConfigMapper? -> DocumentRegistry
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// system:
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// arch: amd64
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// foo: bar
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var (
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ErrConstraintFailure = errors.New("Constraint failure")
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)
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type Constraint map[string]any
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//func Compare[aV, bV map[K]V, K, V comparable](a aV, b bV) (matched bool) {
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func CompareMap(a, b any) (matched bool) {
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for k,v := range a.(Constraint) {
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if bv, exists := b.(map[string]any)[k]; exists && bv == v {
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matched = true
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} else {
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matched = false
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}
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}
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return
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}
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func (c Constraint) CompareValues(a, b any) (matched bool) {
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matched = true
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slog.Info("Constraint.CompareValues()", "a", a, "b", b)
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switch btype := b.(type) {
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case map[string]string:
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return CompareMap(a, b)
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case map[string]any:
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return CompareMap(a, b)
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case []string:
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acmp := a.([]string)
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if len(acmp) > len(btype) {
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return false
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}
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for i,v := range acmp {
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if v != btype[i] {
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return false
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}
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}
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default:
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return a == b
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}
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return
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}
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func (c Constraint) Check(configs data.ConfigurationValueGetter) (matched bool) {
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matched = true
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for k,v := range c {
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slog.Info("Constraint.Check()", "constraint", c, "config", configs)
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if configValue, err := configs.GetValue(k); err != nil || ! c.CompareValues(v, configValue) {
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slog.Info("Constraint.Check() - FAILURE", "configvalue", configValue, "constraint", v, "error", err)
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matched = false
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}
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}
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return
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}
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