From 99b2d1a176ee12aed9d80390f76f0a6490875094 Mon Sep 17 00:00:00 2001
From: Leo Vasanko <leo@git>
Date: Wed, 20 Aug 2025 13:37:18 -0600
Subject: [PATCH] Broken event support.

---
 calendar.css | 129 +++++++++++++++++++++++++++++++++-----------
 calendar.js  | 149 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 247 insertions(+), 31 deletions(-)

diff --git a/calendar.css b/calendar.css
index 1c42b59..604ddd1 100644
--- a/calendar.css
+++ b/calendar.css
@@ -73,10 +73,10 @@
 /* Layout & typography */
 :root {
   --row-h: 2.2em;
-  --label-w: 4em;
-  --cell-w: 6em;
-  --cell-h: 6em;
-  --overlay-w: 3rem;
+  --label-w: minmax(4em, 8%);
+  --cell-w: 1fr;
+  --cell-h: clamp(4em, 8vh, 8em);
+  --overlay-w: minmax(3rem, 5%);
 }
 
 * { box-sizing: border-box }
@@ -89,13 +89,13 @@ body {
 }
 
 .wrap {
-  width: fit-content;
-  margin: 2rem auto;
+  width: 100%;
+  margin: 0;
   background: var(--panel);
-  height: calc(100vh - 4rem);
+  height: 100vh;
   display: flex;
   flex-direction: column;
-  min-width: calc(var(--label-w) + 7 * var(--cell-w) + 2.4rem);
+  padding: 1rem;
   white-space: pre-wrap;
 }
 
@@ -127,6 +127,7 @@ header {
   border-bottom: .1em solid var(--muted);
   align-items: last baseline;
   flex-shrink: 0;
+  width: 100%;
 }
 
 .calendar-container {
@@ -141,15 +142,17 @@ header {
   height: 100%;
   overflow-y: auto;
   overflow-x: hidden;
-  flex: 0 0 auto;
-  width: calc(var(--label-w) + 7 * var(--cell-w) + var(--overlay-w));
+  flex: 1;
+  width: 100%;
   scrollbar-width: none;
 }
 .calendar-viewport::-webkit-scrollbar { display: none }
 
 .jogwheel-viewport {
   position: absolute;
-  inset: 0 0 0 auto;
+  top: 0;
+  right: 0;
+  bottom: 0;
   width: var(--overlay-w);
   overflow-y: auto;
   overflow-x: hidden;
@@ -170,6 +173,7 @@ header {
   overflow: visible;
   height: var(--cell-h);
   scroll-snap-align: start;
+  width: 100%;
 }
 
 /* Fixed heights for cells and labels */
@@ -182,8 +186,8 @@ header h1 { margin: 0; font-size: 1rem }
 .week-label {
   display: grid;
   place-items: center;
-  width: var(--label-w);
-  height: var(--row-h);
+  width: 100%;
+  height: var(--cell-h);
   color: var(--muted);
   cursor: ns-resize;
   font-size: 1.2em;
@@ -191,15 +195,85 @@ header h1 { margin: 0; font-size: 1rem }
 
 .dow { text-transform: uppercase; }
 .cell {
-  display: grid;
-  place-items: center;
-  width: var(--cell-w);
-  height: var(--row-h);
+  position: relative;
+  display: flex;
+  flex-direction: column;
+  align-items: flex-start;
+  justify-content: flex-start;
+  padding: 0.25em;
+  overflow: hidden;
+  width: 100%;
+  height: var(--cell-h);
   font-weight: 700;
   cursor: pointer;
   transition: background-color .15s ease;
 }
 
+.cell h1 {
+  position: absolute;
+  top: 0.25em;
+  right: 0.25em;
+  padding: 0;
+  margin: 0;
+  transition: background-color .15s ease;
+  font-size: 1em;
+  z-index: 10;
+}
+.cell:hover h1 { text-shadow: 0 0 .2em; }
+
+/* Event styles */
+.event {
+  font-size: 0.75em;
+  padding: 0.1em 0.3em;
+  margin: 0.1em 0;
+  border-radius: 0.2em;
+  color: white;
+  font-weight: 500;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  width: 100%;
+  max-width: calc(100% - 0.5em);
+  line-height: 1.2;
+  cursor: pointer;
+  z-index: 5;
+}
+
+.event:hover {
+  opacity: 0.8;
+}
+
+/* Spanning event styles */
+.event-span {
+  font-size: 0.75em;
+  padding: 0.1em 0.3em;
+  border-radius: 0.2em;
+  color: white;
+  font-weight: 500;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  line-height: 1.2;
+  cursor: pointer;
+  transition: opacity 0.15s ease;
+  
+  /* Calculate position and width using CSS variables and custom properties */
+  left: calc(var(--label-w) + var(--start-day) * (100% - var(--label-w) - var(--overlay-w)) / 7);
+  width: calc(var(--span-days) * (100% - var(--label-w) - var(--overlay-w)) / 7);
+}
+
+.event-span:hover {
+  opacity: 0.8;
+}
+
+.event-more {
+  font-size: 0.7em;
+  color: var(--muted);
+  font-style: italic;
+  margin-top: 0.1em;
+}
+
+/* Selection styles */
 .weekend { color: var(--weekend) }
 .firstday { color: var(--firstday); text-shadow: 0 0 .1em rgba(var(--ink-rgb), .5) }
 
@@ -221,29 +295,22 @@ label:has(input[value]) {
 }
 .selected {
   background: var(--select) !important;
+  border: 2px solid rgba(var(--ink-rgb), 0.3);
+  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.3);
 }
 .selected h1,
 :is(.range-start,.range-end,.range-middle,.range-single) h1 {
   background: transparent !important;
   color: var(--panel) !important;
   font-weight: 700;
+  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
 }
 
-.cell {
-  position: relative;
+/* Ensure events don't interfere with selection visibility */
+.selected .event {
+  opacity: 0.7;
 }
 
-.cell h1 {
-  position: absolute;
-  top: 0;
-  left: 0;
-  padding: .25em;
-  margin: 0;
-  transition: background-color .15s ease;
-  font-size: 1em;
-}
-.cell:hover h1 { text-shadow: 0 0 .2em; }
-
 /* Month labels in jogwheel column */
 .month-name-label {
   grid-column: -2 / -1;
@@ -259,7 +326,7 @@ label:has(input[value]) {
   position: absolute;
   top: 0;
   right: 0;
-  width: var(--overlay-w);
+  width: 100%;
 }
 
 .month-name-label > span {
diff --git a/calendar.js b/calendar.js
index efd05c1..93d2e09 100644
--- a/calendar.js
+++ b/calendar.js
@@ -37,6 +37,10 @@ class InfiniteCalendar {
 
     this.weekend = [true, false, false, false, false, false, true]
 
+    // Event storage
+    this.events = new Map() // Map of date strings to arrays of events
+    this.eventIdCounter = 1
+
     this.viewport = document.getElementById('calendar-viewport')
     this.content = document.getElementById('calendar-content')
     this.header = document.getElementById('calendar-header')
@@ -279,6 +283,9 @@ class InfiniteCalendar {
       weekEl.style.height = `${this.rowHeight}px`
       this.content.appendChild(weekEl)
       this.visibleWeeks.set(vw, weekEl)
+      
+      // Add events to the newly created week
+      this.addEventsToWeek(weekEl, vw)
     }
 
     this.applySelectionToVisible()
@@ -588,6 +595,148 @@ class InfiniteCalendar {
     this.isDragging = false
     this.setSelection(this.dragAnchor, dateStr)
     document.body.style.cursor = 'default'
+    
+    // Trigger event creation after selection with a small delay
+    if (this.selStart && this.selEnd) {
+      setTimeout(() => this.promptForEvent(), 100)
+    }
+  }
+
+  // -------- Event Management --------
+  
+  promptForEvent() {
+    const title = prompt('Enter event title:')
+    if (!title || title.trim() === '') {
+      this.clearSelection()
+      return
+    }
+    
+    this.createEvent({
+      title: title.trim(),
+      startDate: this.selStart,
+      endDate: this.selEnd
+    })
+    
+    this.clearSelection()
+  }
+  
+  createEvent(eventData) {
+    const event = {
+      id: this.eventIdCounter++,
+      title: eventData.title,
+      startDate: eventData.startDate,
+      endDate: eventData.endDate,
+      color: this.generateEventColor()
+    }
+    
+    // Add event to all dates in the range
+    const startDate = new Date(fromLocalString(event.startDate))
+    const endDate = new Date(fromLocalString(event.endDate))
+    
+    for (let d = new Date(startDate); d <= endDate; d.setDate(d.getDate() + 1)) {
+      const dateStr = toLocalString(d)
+      if (!this.events.has(dateStr)) {
+        this.events.set(dateStr, [])
+      }
+      this.events.get(dateStr).push({...event, isSpanning: startDate < endDate})
+    }
+    
+    // Re-render visible weeks to show the new event
+    this.refreshEvents()
+  }
+  
+  generateEventColor() {
+    const colors = [
+      '#ff6b6b', '#4ecdc4', '#45b7d1', '#96ceb4', '#feca57',
+      '#ff9ff3', '#54a0ff', '#5f27cd', '#00d2d3', '#ff9f43'
+    ]
+    return colors[Math.floor(Math.random() * colors.length)]
+  }
+  
+  refreshEvents() {
+    // Re-render events for all visible weeks
+    for (const [weekDateStr, weekEl] of this.visibleWeeks) {
+      this.addEventsToWeek(weekEl, weekDateStr)
+    }
+  }
+  
+  addEventsToWeek(weekEl, weekDateStr) {
+    const cells = weekEl.querySelectorAll('.cell[data-date]')
+    
+    // Remove existing event elements from both week and individual cells
+    weekEl.querySelectorAll('.event-span').forEach(el => el.remove())
+    cells.forEach(cell => {
+      cell.querySelectorAll('.event-span').forEach(el => el.remove())
+    })
+    
+    // Group events by their date ranges within this week
+    const weekEvents = new Map() // Map of event ID to event info
+    
+    for (const cell of cells) {
+      const dateStr = cell.dataset.date
+      const events = this.events.get(dateStr) || []
+      
+      events.forEach(event => {
+        if (!weekEvents.has(event.id)) {
+          weekEvents.set(event.id, {
+            ...event,
+            startDateInWeek: dateStr,
+            endDateInWeek: dateStr,
+            startCell: cell,
+            endCell: cell,
+            daysInWeek: 1
+          })
+        } else {
+          const weekEvent = weekEvents.get(event.id)
+          weekEvent.endDateInWeek = dateStr
+          weekEvent.endCell = cell
+          weekEvent.daysInWeek++
+        }
+      })
+    }
+    
+    // Create spanning elements for each event
+    weekEvents.forEach((weekEvent, eventId) => {
+      this.createSpanningEvent(weekEl, weekEvent)
+    })
+  }
+  
+  createSpanningEvent(weekEl, weekEvent) {
+    const spanEl = document.createElement('div')
+    spanEl.className = 'event-span'
+    spanEl.style.backgroundColor = weekEvent.color
+    spanEl.textContent = weekEvent.title
+    spanEl.title = `${weekEvent.title} (${weekEvent.startDate === weekEvent.endDate ? weekEvent.startDate : weekEvent.startDate + ' - ' + weekEvent.endDate})`
+    
+    // Get all cells in the week (excluding week label and overlay)
+    const cells = Array.from(weekEl.querySelectorAll('.cell[data-date]'))
+    const startCellIndex = cells.indexOf(weekEvent.startCell)
+    const endCellIndex = cells.indexOf(weekEvent.endCell)
+    const spanDays = endCellIndex - startCellIndex + 1
+    
+    // Use CSS custom properties for positioning
+    spanEl.style.setProperty('--start-day', startCellIndex)
+    spanEl.style.setProperty('--span-days', spanDays)
+    
+    // Style the spanning event
+    spanEl.style.position = 'absolute'
+    spanEl.style.top = '0.25em'
+    spanEl.style.height = '1.2em'
+    spanEl.style.zIndex = '15'
+    spanEl.style.fontSize = '0.75em'
+    spanEl.style.padding = '0.1em 0.3em'
+    spanEl.style.borderRadius = '0.2em'
+    spanEl.style.color = 'white'
+    spanEl.style.fontWeight = '500'
+    spanEl.style.whiteSpace = 'nowrap'
+    spanEl.style.overflow = 'hidden'
+    spanEl.style.textOverflow = 'ellipsis'
+    spanEl.style.cursor = 'pointer'
+    spanEl.style.lineHeight = '1.2'
+    spanEl.style.pointerEvents = 'auto'
+    
+    // Append to the week element (not individual cells)
+    weekEl.appendChild(spanEl)
   }
 }