bec34b5988
internal/rules implements Stufe 2 from the core principle: the LLM extracts facts, this deterministic engine judges them against versioned YAML rules. Facts/Condition/Rule/Finding types, a loader that refuses to load on a missing id/version or a duplicate rule id rather than silently skipping a bad file, and Evaluate() matching facts against rules. Two real rules grounded in verified research (see rules/OPEN.md for the open questions that surfaced along the way): - WK-001: no disclosure at all despite consideration (§ 5a Abs. 4 UWG, § 22 Abs. 1 MStV) - WK-004: disclosure present but hidden behind a "mehr anzeigen" cut (§ 5a Abs. 4 UWG, Leitfaden der Medienanstalten, LG Köln 12.05.2026) The two are deliberately disjoint (WK-004 requires disclosure_present= true) so a post with no disclosure at all doesn't double-fire both rules. Golden suite in testdata/golden/ covers both rules plus two clean cases; it's this suite, not the UI, that's the actual asset per CLAUDE.md. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
55 lines
1.5 KiB
Go
55 lines
1.5 KiB
Go
package rules
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// Severity ist die Schwere eines Findings.
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type Severity string
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const (
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SeverityLow Severity = "niedrig"
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SeverityMedium Severity = "mittel"
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SeverityHigh Severity = "hoch"
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)
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// Rule ist eine versionierte Regel aus einer YAML-Datei in rules/.
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// Regel-IDs werden nie umbenannt oder wiederverwendet — Änderungen an
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// einer Regel erhöhen die Version.
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type Rule struct {
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ID string `yaml:"id"`
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Version int `yaml:"version"`
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Title string `yaml:"titel"`
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Condition Condition `yaml:"bedingung"`
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Severity Severity `yaml:"schwere"`
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Sources []string `yaml:"fundstelle"`
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Fix string `yaml:"korrektur"`
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}
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// Condition ist eine flache UND-Bedingung über Facts. Ein nil/leeres
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// Feld bedeutet "keine Einschränkung durch dieses Feld".
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type Condition struct {
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Consideration []Consideration `yaml:"gegenleistung,omitempty"`
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DisclosurePresent *bool `yaml:"kennzeichnung_vorhanden,omitempty"`
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DisclosureBeforeCut *bool `yaml:"kennzeichnung_vor_kuerzung,omitempty"`
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}
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// Matches prüft, ob f alle gesetzten Bedingungsfelder erfüllt.
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func (c Condition) Matches(f Facts) bool {
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if len(c.Consideration) > 0 {
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found := false
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for _, allowed := range c.Consideration {
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if allowed == f.Consideration {
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found = true
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break
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}
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}
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if !found {
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return false
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}
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}
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if c.DisclosurePresent != nil && *c.DisclosurePresent != f.DisclosurePresent {
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return false
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}
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if c.DisclosureBeforeCut != nil && *c.DisclosureBeforeCut != f.DisclosureBeforeCut {
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return false
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}
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return true
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}
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