Schellfilter; bugfixes; Tagewerk; Anfang Ort Controller

viewmodels/place_view.go

@@ -0,0 +1,95 @@
+package viewmodels
+
+import (
+	"maps"
+	"slices"
+	"strings"
+
+	"github.com/Theodor-Springmann-Stiftung/kgpz_web/xmlmodels"
+)
+
+// PlacesListView represents the data for the places overview
+type PlacesListView struct {
+	Search           string
+	AvailableLetters []string
+	Places           map[string]xmlmodels.Place
+	Sorted           []string
+	SelectedPlace    *PlaceDetailView
+}
+
+// PlaceDetailView represents a specific place with its associated pieces
+type PlaceDetailView struct {
+	Place  xmlmodels.Place
+	Pieces []xmlmodels.Piece
+}
+
+// PlacesView returns places data for the overview page
+func PlacesView(placeID string, lib *xmlmodels.Library) *PlacesListView {
+	res := PlacesListView{Search: placeID, Places: make(map[string]xmlmodels.Place)}
+	av := make(map[string]bool)
+
+	// Get all places that are referenced in pieces
+	referencedPlaces := make(map[string]bool)
+	for _, piece := range lib.Pieces.Array {
+		for _, placeRef := range piece.PlaceRefs {
+			referencedPlaces[placeRef.Ref] = true
+		}
+	}
+
+	// Build available letters and places list
+	for _, place := range lib.Places.Array {
+		// Only include places that are actually referenced in pieces
+		if referencedPlaces[place.ID] {
+			av[strings.ToUpper(place.ID[:1])] = true
+			res.Sorted = append(res.Sorted, place.ID)
+			res.Places[place.ID] = place
+		}
+	}
+
+	// If a specific place is requested, get its details
+	if placeID != "" && len(placeID) > 1 {
+		if place, exists := res.Places[placeID]; exists {
+			res.SelectedPlace = GetPlaceDetail(place, lib)
+		}
+	}
+
+	res.AvailableLetters = slices.Collect(maps.Keys(av))
+	slices.Sort(res.AvailableLetters)
+	slices.Sort(res.Sorted)
+
+	return &res
+}
+
+// GetPlaceDetail returns detailed information for a specific place including associated pieces
+func GetPlaceDetail(place xmlmodels.Place, lib *xmlmodels.Library) *PlaceDetailView {
+	detail := &PlaceDetailView{
+		Place:  place,
+		Pieces: make([]xmlmodels.Piece, 0),
+	}
+
+	// Find all pieces that reference this place
+	for _, piece := range lib.Pieces.Array {
+		for _, placeRef := range piece.PlaceRefs {
+			if placeRef.Ref == place.ID {
+				detail.Pieces = append(detail.Pieces, piece)
+				break // Don't add the same piece multiple times
+			}
+		}
+	}
+
+	// Sort pieces by title for consistent display
+	slices.SortFunc(detail.Pieces, func(a, b xmlmodels.Piece) int {
+		// Get first title from each piece, or use empty string if no titles
+		titleA := ""
+		if len(a.Title) > 0 {
+			titleA = a.Title[0]
+		}
+		titleB := ""
+		if len(b.Title) > 0 {
+			titleB = b.Title[0]
+		}
+		return strings.Compare(strings.ToLower(titleA), strings.ToLower(titleB))
+	})
+
+	return detail
+}