111 lines
3.1 KiB
Go
111 lines
3.1 KiB
Go
package domain
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import "strings"
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// TaskDecomposition is the small, typed intermediate representation used
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// before a capability is called. It separates the user's goal from the
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// object, source and target instead of treating the whole sentence as a
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// command string.
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type TaskDecomposition struct {
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Intent string
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Object string
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Source string
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Target string
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Qualifiers []string
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Missing []string
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NeedsResearch bool
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}
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type TaskLexiconEntry struct {
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Alias string
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Value string
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}
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type TaskLexicon struct {
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ObjectAliases []TaskLexiconEntry
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SourceAliases []TaskLexiconEntry
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}
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const (
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TaskIntentSearch = "SEARCH"
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TaskIntentCreate = "CREATE"
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)
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// DecomposeTask performs the structural pass without assuming a mutable
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// world vocabulary. Learned names, aliases and source meanings are supplied
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// by memory through DecomposeTaskWithLexicon.
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func DecomposeTask(message string) TaskDecomposition {
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return DecomposeTaskWithLexicon(message, TaskLexicon{})
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}
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// DecomposeTaskWithLexicon performs a cheap semantic pass. The lexicon is
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// intentionally an input: a remembered alias may be revalidated or replaced
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// without changing the parser or shipping a new hard-coded branch.
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func DecomposeTaskWithLexicon(message string, lexicon TaskLexicon) TaskDecomposition {
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lower := strings.ToLower(strings.TrimSpace(message))
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tokens := semanticTokens(message)
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result := TaskDecomposition{}
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if containsStemInTokens(tokens, "найд", "поищ", "подбер", "проверь") {
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result.Intent = TaskIntentSearch
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}
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if containsStemInTokens(tokens, "нарис", "рису", "изобраз", "создай") {
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result.Intent = TaskIntentCreate
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}
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for _, entry := range lexicon.ObjectAliases {
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if containsStemInTokens(tokens, entry.Alias) {
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result.Object = entry.Value
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break
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}
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}
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for _, entry := range lexicon.SourceAliases {
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if containsStemInTokens(tokens, entry.Alias) {
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result.Source = entry.Value
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break
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}
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}
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if result.Source != "" {
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result.NeedsResearch = result.Intent == TaskIntentSearch
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}
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if result.Intent == TaskIntentCreate {
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result.Target = valueAfterAnyCue(lower, "нарисуй", "нарисовать", "изобрази", "создай")
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}
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if result.Target == "" && result.Object != "" {
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for _, entry := range lexicon.ObjectAliases {
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if entry.Value == result.Object {
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result.Target = valueAfterCue(lower, entry.Alias)
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break
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}
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}
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}
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if result.Intent == TaskIntentSearch && result.Source == "" {
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result.Missing = append(result.Missing, "SOURCE_OR_SEARCH_SCOPE")
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}
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if result.Intent == TaskIntentSearch && result.Target == "" {
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result.Missing = append(result.Missing, "TARGET")
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}
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return result
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}
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func valueAfterAnyCue(message string, cues ...string) string {
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for _, cue := range cues {
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if value := valueAfterCue(message, cue); value != "" {
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return value
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}
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}
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return ""
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}
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func valueAfterCue(message, cue string) string {
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index := strings.Index(message, cue)
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if index < 0 {
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return ""
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}
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value := strings.TrimSpace(message[index+len(cue):])
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value = strings.Trim(value, " \t:,-")
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if end := strings.IndexAny(value, "?!,.;"); end >= 0 {
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value = value[:end]
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}
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return strings.TrimSpace(value)
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}
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