Add autofill app binding helpers

internal/autofillcache/bindings.go

@@ -0,0 +1,87 @@
+package autofillcache
+
+import (
+	"encoding/json"
+	"os"
+	"path/filepath"
+	"slices"
+	"strings"
+	"time"
+)
+
+type BindingsFile struct {
+	UpdatedAt string            `json:"updatedAt"`
+	Apps      map[string]string `json:"apps,omitempty"`
+}
+
+func ReadBindings(path string) (BindingsFile, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return BindingsFile{}, nil
+		}
+		return BindingsFile{}, err
+	}
+	var bindings BindingsFile
+	if err := json.Unmarshal(data, &bindings); err != nil {
+		return BindingsFile{}, err
+	}
+	if bindings.Apps == nil {
+		bindings.Apps = make(map[string]string)
+	}
+	return bindings, nil
+}
+
+func RememberBinding(path, rawTarget, entryID string, now time.Time) error {
+	bindings, err := ReadBindings(path)
+	if err != nil {
+		return err
+	}
+	if bindings.Apps == nil {
+		bindings.Apps = make(map[string]string)
+	}
+	target := strings.TrimSpace(rawTarget)
+	id := strings.TrimSpace(entryID)
+	if target == "" || id == "" {
+		return nil
+	}
+	bindings.Apps[target] = id
+	bindings.UpdatedAt = now.UTC().Format(time.RFC3339)
+	data, err := json.MarshalIndent(bindings, "", "  ")
+	if err != nil {
+		return err
+	}
+	if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
+		return err
+	}
+	return os.WriteFile(path, data, 0o600)
+}
+
+func ResolveWithBindings(cache File, bindings BindingsFile, rawTarget string) MatchResult {
+	target := strings.TrimSpace(rawTarget)
+	if entryID := strings.TrimSpace(bindings.Apps[target]); entryID != "" {
+		for _, entry := range cache.Entries {
+			if entry.ID == entryID {
+				return MatchResult{Status: MatchStatusFound, Entry: entry}
+			}
+		}
+	}
+	return Resolve(cache, rawTarget)
+}
+
+func ChooserCandidates(cache File, rawTarget string) []Entry {
+	if result := Resolve(cache, rawTarget); result.Status == MatchStatusFound {
+		return []Entry{result.Entry}
+	}
+	candidates := append([]Entry(nil), cache.Entries...)
+	slices.SortFunc(candidates, func(left, right Entry) int {
+		if cmp := strings.Compare(strings.ToLower(strings.TrimSpace(left.Title)), strings.ToLower(strings.TrimSpace(right.Title))); cmp != 0 {
+			return cmp
+		}
+		if cmp := strings.Compare(strings.ToLower(strings.Join(left.Path, "/")), strings.ToLower(strings.Join(right.Path, "/"))); cmp != 0 {
+			return cmp
+		}
+		return strings.Compare(left.ID, right.ID)
+	})
+	return candidates
+}