Split app into subpages, persist ingame time, and add 14-month dashboard calendar

cmd/server/calendar.go

@@ -0,0 +1,87 @@
+package main
+
+import (
+	"fmt"
+	"sort"
+	"strings"
+)
+
+func buildTasksForDay(plans []Plan, month, day int) []Task {
+	var tasks []Task
+	for _, p := range plans {
+		field := p.TargetName
+		if strings.TrimSpace(field) == "" {
+			field = "Unbekanntes Feld"
+		}
+		if p.StartMonth == month && p.StartDay == day {
+			tasks = append(tasks, Task{Type: "Aussaat", Field: field, Message: fmt.Sprintf("%s auf %s aussaeen", p.CropName, field), SortOrder: 1})
+		}
+		if p.HarvestMonth == month && p.HarvestDay == day {
+			tasks = append(tasks, Task{Type: "Ernte", Field: field, Message: fmt.Sprintf("%s auf %s ernten", p.CropName, field), SortOrder: 2})
+		}
+	}
+	sort.Slice(tasks, func(i, j int) bool {
+		if tasks[i].SortOrder == tasks[j].SortOrder {
+			return tasks[i].Field < tasks[j].Field
+		}
+		return tasks[i].SortOrder < tasks[j].SortOrder
+	})
+	return tasks
+}
+
+func buildCalendar(plans []Plan, startMonth, startDay, daysPerMonth, spanMonths int) []CalendarMonth {
+	tasksByKey := make(map[string][]Task)
+	for _, p := range plans {
+		field := p.TargetName
+		if strings.TrimSpace(field) == "" {
+			field = "Unbekanntes Feld"
+		}
+		tasksByKey[fmt.Sprintf("%d-%d", p.StartMonth, p.StartDay)] = append(tasksByKey[fmt.Sprintf("%d-%d", p.StartMonth, p.StartDay)], Task{
+			Type:      "Aussaat",
+			Field:     field,
+			Message:   fmt.Sprintf("%s auf %s", p.CropName, field),
+			SortOrder: 1,
+		})
+		tasksByKey[fmt.Sprintf("%d-%d", p.HarvestMonth, p.HarvestDay)] = append(tasksByKey[fmt.Sprintf("%d-%d", p.HarvestMonth, p.HarvestDay)], Task{
+			Type:      "Ernte",
+			Field:     field,
+			Message:   fmt.Sprintf("%s auf %s", p.CropName, field),
+			SortOrder: 2,
+		})
+	}
+
+	var out []CalendarMonth
+	for offset := 0; offset < spanMonths; offset++ {
+		month := wrapMonth(startMonth + offset)
+		yearOffset := (startMonth - 1 + offset) / 12
+		label := monthNames[month-1]
+		if yearOffset > 0 {
+			label = fmt.Sprintf("%s (+%d Jahr)", label, yearOffset)
+		}
+
+		fromDay := 1
+		if offset == 0 {
+			fromDay = startDay
+		}
+		var days []CalendarDay
+		for day := fromDay; day <= daysPerMonth; day++ {
+			key := fmt.Sprintf("%d-%d", month, day)
+			items := append([]Task(nil), tasksByKey[key]...)
+			sort.Slice(items, func(i, j int) bool {
+				if items[i].SortOrder == items[j].SortOrder {
+					return items[i].Field < items[j].Field
+				}
+				return items[i].SortOrder < items[j].SortOrder
+			})
+			days = append(days, CalendarDay{Day: day, Tasks: items})
+		}
+		out = append(out, CalendarMonth{
+			Offset:     offset,
+			Month:      month,
+			Label:      label,
+			YearOffset: yearOffset,
+			Days:       days,
+		})
+	}
+	return out
+}