feat: Calendar Events implemented.

go.mod

@@ -12,6 +12,7 @@ require (
 )
 
 require (
+	github.com/arran4/golang-ical v0.3.1 // indirect
 	github.com/PuerkitoBio/goquery v1.10.1 // indirect
 	github.com/andybalholm/cascadia v1.3.3 // indirect
 	github.com/ebitengine/purego v0.8.2 // indirect

go.sum

@@ -1,3 +1,6 @@
+github.com/arran4/golang-ical v0.3.1 h1:v13B3eQZ9VDHTAvT6M11vVzxYgcYmjyPBE2eAZl3VZk=
+github.com/arran4/golang-ical v0.3.1/go.mod h1:LZWxF8ZIu/sjBVUCV0udiVPrQAgq3V0aa0RfbO99Qkk=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/PuerkitoBio/goquery v1.10.1 h1:Y8JGYUkXWTGRB6Ars3+j3kN0xg1YqqlwvdTV8WTFQcU=
 github.com/PuerkitoBio/goquery v1.10.1/go.mod h1:IYiHrOMps66ag56LEH7QYDDupKXyo5A8qrjIx3ZtujY=
 github.com/andybalholm/cascadia v1.3.3 h1:AG2YHrzJIm4BZ19iwJ/DAua6Btl3IwJX+VI4kktS1LM=
@@ -17,6 +20,9 @@ github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeN
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
+github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/lufia/plan9stats v0.0.0-20240909124753-873cd0166683 h1:7UMa6KCCMjZEMDtTVdcGu0B1GmmC7QJKiCCjyTAWQy0=
 github.com/lufia/plan9stats v0.0.0-20240909124753-873cd0166683/go.mod h1:ilwx/Dta8jXAgpFYFvSWEMwxmbWXyiUHkd5FwyKhb5k=
 github.com/mmcdole/gofeed v1.3.0 h1:5yn+HeqlcvjMeAI4gu6T+crm7d0anY85+M+v6fIFNG4=
@@ -28,6 +34,7 @@ github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
 github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
+github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 h1:o4JXh1EVt9k/+g42oCprj/FisM4qX9L3sZB3upGN2ZU=
@@ -126,5 +133,9 @@ golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxb
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU=
+gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

internal/glance/static/main.css

@@ -1094,6 +1094,64 @@ details[open] .summary::after {
     filter: invert(1);
 }
 
+.calendar-day {
+  width: calc(100% / 7);
+  text-align: center;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  padding: 0.6rem 0;
+}
+
+
+.calendar-day-today {
+  border-radius: var(--border-radius);
+  background-color: hsl(
+    var(--bghs),
+    calc(var(--scheme) (var(--scheme) (var(--bgl)) + 6%))
+  );
+  color: var(--color-text-highlight);
+}
+
+.calendar-isevent {
+  color: var(--color-primary);
+  cursor: pointer;
+}
+.tooltip {
+  position: relative;
+  display: inline-block;
+  width: 0;
+  height: 0;
+}
+.tooltiptext {
+  transition: 0.5s;
+}
+/* Tooltip text */
+.tooltip .tooltiptext {
+  visibility: hidden;
+  width: 150px;
+  background-color: hsl(
+    var(--bghs),
+    calc(var(--scheme) (var(--scheme) (var(--bgl)) + 6%))
+  );
+  color: var(--color-text-highlight);
+  text-align: center;
+  padding: 5px 0;
+  border-radius: 6px;
+  opacity: 0;
+
+  position: absolute;
+  z-index: 1;
+  bottom: 100%;
+  left: 50%;
+  margin-bottom: 5px;
+  margin-left: -75px;
+}
+
+.calendar-day:hover .tooltiptext {
+  visibility: visible;
+  opacity: 0.8;
+}
 .old-calendar-day {
     width: calc(100% / 7);
     text-align: center;

internal/glance/templates/calendar.html

@@ -2,6 +2,45 @@
 
 {{ define "widget-content" }}
 <div class="widget-small-content-bounds">
-    <div class="calendar" data-first-day-of-week="{{ .FirstDay }}"></div>
+    <div class="flex justify-between items-center">
+        <div class="color-highlight size-h1">{{ .Calendar.CurrentMonthName }}</div>
+        <ul class="list-horizontal-text color-highlight size-h4">
+            <li>Week {{ .Calendar.CurrentWeekNumber }}</li>
+            <li>{{ .Calendar.CurrentYear }}</li>
+        </ul>
+    </div>
+
+    <div class="flex flex-wrap size-h6 margin-top-10 color-subdue">
+        {{ if .StartSunday }}
+            <div class="calendar-day">Su</div>
+        {{ end }}
+        <div class="calendar-day">Mo</div>
+        <div class="calendar-day">Tu</div>
+        <div class="calendar-day">We</div>
+        <div class="calendar-day">Th</div>
+        <div class="calendar-day">Fr</div>
+        <div class="calendar-day">Sa</div>
+        {{ if not .StartSunday }}
+            <div class="calendar-day">Su</div>
+        {{ end }}
+    </div>
+
+	<div class="flex flex-wrap justify-center items-center">
+		{{ range .Calendar.Days }}
+		<div class="calendar-day{{ if eq .Day $.Calendar.CurrentDay }} calendar-day-today{{ end }} {{ if .IsEvent}} calendar-isevent{{ end }}">
+		{{ if .IsEvent}}
+			<div class="tooltip">
+				<span class="tooltiptext">
+					{{ range .Events }}
+						{{ .EventHover }}
+						<br>
+					{{ end }}
+				</span>
+			</div>
+		{{ end }}
+		<span>{{ .Day }}</span>
+	</div>
+	{{ end }}
+    </div>
 </div>
 {{ end }}

internal/glance/widget-calendar.go

@@ -1,45 +1,155 @@
 package glance
 
 import (
+	"context"
+	"fmt"
 	"errors"
 	"html/template"
+	"log"
+	"net/http"
+	"os"
+	"strings"
 	"time"
+
+	ics "github.com/arran4/golang-ical"
 )
 
 var calendarWidgetTemplate = mustParseTemplate("calendar.html", "widget-base.html")
 
-var calendarWeekdaysToInt = map[string]time.Weekday{
-	"sunday":    time.Sunday,
-	"monday":    time.Monday,
-	"tuesday":   time.Tuesday,
-	"wednesday": time.Wednesday,
-	"thursday":  time.Thursday,
-	"friday":    time.Friday,
-	"saturday":  time.Saturday,
+type CalendarEvent struct {
+	StartedDay time.Time
+	EventHover string
+}
+type CalendayDay struct {
+	Day     int
+	IsEvent bool
+	Events  []CalendarEvent
 }
 
 type calendarWidget struct {
-	widgetBase     `yaml:",inline"`
-	FirstDayOfWeek string        `yaml:"first-day-of-week"`
-	FirstDay       int           `yaml:"-"`
-	cachedHTML     template.HTML `yaml:"-"`
+	widgetBase  `yaml:",inline"`
+	Calendar    *calendar
+	StartSunday bool `yaml:"start-sunday"`
+	Icsurl      string
 }
 
 func (widget *calendarWidget) initialize() error {
-	widget.withTitle("Calendar").withError(nil)
+	widget.withTitle("Calendar").withCacheOnTheHour()
+
+	return nil
+}
+
+func (widget *calendarWidget) update(ctx context.Context) {
+	widget.Calendar = newCalendar(time.Now(), widget.StartSunday, widget.Icsurl)
+	fmt.Println(widget.Calendar.Days)
+	widget.withError(nil).scheduleNextUpdate()
+}
+
+func (widget *calendarWidget) Render() template.HTML {
+	return widget.renderTemplate(widget, calendarWidgetTemplate)
+}
+
+type calendar struct {
+	CurrentDay        int
+	CurrentWeekNumber int
+	CurrentMonthName  string
+	CurrentYear       int
+	Days              []CalendayDay
+	Icsurl            string `yaml:"icsurl"`
+}
+
+// TODO: very inflexible, refactor to allow more customizability
+// TODO: allow changing between showing the previous and next week and the entire month
+func newCalendar(now time.Time, startSunday bool, icsurl string) *calendar {
+	year, week := now.Year(), int(now.Weekday())
+	weekday := now.Weekday()
+	if !startSunday {
+		weekday = (weekday + 6) % 7 // Shift Monday to 0
+	}
+
+	currentMonthDays := daysInMonth(now.Month(), year)
+
+	var previousMonthDays int
 
 	if widget.FirstDayOfWeek == "" {
 		widget.FirstDayOfWeek = "monday"
 	} else if _, ok := calendarWeekdaysToInt[widget.FirstDayOfWeek]; !ok {
 		return errors.New("invalid first day of week")
 	}
 
-	widget.FirstDay = int(calendarWeekdaysToInt[widget.FirstDayOfWeek])
-	widget.cachedHTML = widget.renderTemplate(widget, calendarWidgetTemplate)
+	startDaysFrom := now.Day() - int(weekday) - 7
 
-	return nil
+	days := make([]CalendayDay, 21)
+	events, _ := ReadPublicIcs(icsurl)
+
+	for i := 0; i < 21; i++ {
+		day := startDaysFrom + i
+		month := now.Month()
+
+		if day < 1 {
+			day = previousMonthDays + day
+			month -= 1
+
+		} else if day > currentMonthDays {
+			day = day - currentMonthDays
+			month += 1
+
+		}
+		if events != nil {
+			for _, event := range events {
+				var dayEvent CalendarEvent
+				startAt, err := event.GetStartAt()
+				if err != nil {
+					log.Panic(err)
+				}
+				fmt.Println(year)
+				// fmt.Println(startAt.Day() == day && startAt.Month() == month)
+				if startAt.Day() == day && startAt.Month() == month && startAt.Year() == year {
+					dayEvent.StartedDay = startAt
+					dayEvent.EventHover = event.GetProperty("SUMMARY").Value
+					days[i].IsEvent = true
+					days[i].Events = append(days[i].Events, dayEvent)
+				}
+			}
+		}
+		days[i].Day = day
+	}
+
+	return &calendar{
+		CurrentDay:        now.Day(),
+		CurrentWeekNumber: week,
+		CurrentMonthName:  now.Month().String(),
+		CurrentYear:       year,
+		Days:              days,
+	}
 }
 
 func (widget *calendarWidget) Render() template.HTML {
 	return widget.cachedHTML
 }
+
+func ParseEventsFromFile(file string) []*ics.VEvent {
+	eventString, err := os.ReadFile(file)
+	if err != nil {
+		log.Panic(err)
+	}
+	cal, err := ics.ParseCalendar(strings.NewReader(string(eventString)))
+	if err != nil {
+		log.Panic(err)
+	}
+	events := cal.Events()
+	return events
+}
+func ReadPublicIcs(url string) ([]*ics.VEvent, error) {
+	response, err := http.Get(url)
+	if err != nil {
+		return nil, err
+	}
+	defer response.Body.Close()
+	cal, err := ics.ParseCalendar(response.Body)
+	if err != nil {
+		return nil, err
+	}
+	events := cal.Events()
+	return events, nil
+}