feat: Calendar Events implemented.

go.mod

@@ -11,6 +11,7 @@ require (
 require (
 	github.com/PuerkitoBio/goquery v1.9.1 // indirect
 	github.com/andybalholm/cascadia v1.3.2 // indirect
+	github.com/arran4/golang-ical v0.3.1 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/mmcdole/goxpp v1.1.1 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect

go.sum

@@ -2,12 +2,19 @@ github.com/PuerkitoBio/goquery v1.9.1 h1:mTL6XjbJTZdpfL+Gwl5U2h1l9yEkJjhmlTeV9VP
 github.com/PuerkitoBio/goquery v1.9.1/go.mod h1:cW1n6TmIMDoORQU5IU/P1T3tGFunOeXEpGP2WHRwkbY=
 github.com/andybalholm/cascadia v1.3.2 h1:3Xi6Dw5lHF15JtdcmAHD3i1+T8plmv7BQ/nsViSLyss=
 github.com/andybalholm/cascadia v1.3.2/go.mod h1:7gtRlve5FxPPgIgX36uWBX58OdBsSS6lUvCFb+h7KvU=
+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/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 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/mmcdole/gofeed v1.3.0 h1:5yn+HeqlcvjMeAI4gu6T+crm7d0anY85+M+v6fIFNG4=
 github.com/mmcdole/gofeed v1.3.0/go.mod h1:9TGv2LcJhdXePDzxiuMnukhV2/zb6VtnZt1mS+SjkLE=
 github.com/mmcdole/goxpp v1.1.1 h1:RGIX+D6iQRIunGHrKqnA2+700XMCnNv0bAOOv5MUhx8=
@@ -17,10 +24,12 @@ 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/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
@@ -63,5 +72,9 @@ golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 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/assets/static/main.css

@@ -813,15 +813,61 @@ kbd:active {
 }
 
 .calendar-day {
-    width: calc(100% / 7);
-    text-align: center;
-    padding: 0.6rem 0;
+  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);
+  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;
 }
 
 .weather-column {

internal/assets/templates/calendar.html

@@ -1,27 +1,34 @@
-{{ template "widget-base.html" . }}
-
-{{ define "widget-content" }}
+{{ template "widget-base.html" . }} {{ define "widget-content" }}
 <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 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">
-    <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>
-    <div class="calendar-day">Su</div>
+  <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>
+  <div class="calendar-day">Su</div>
 </div>
 
-<div class="flex flex-wrap">
-    {{ range .Calendar.Days }}
-    <div class="calendar-day{{ if eq . $.Calendar.CurrentDay }} calendar-day-today{{ 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">{{ .Event.EventHover }}</span>
+    </div>
     {{ end }}
+    <span>{{ .Day }}</span>
+  </div>
+  {{ end }}
 </div>
 {{ end }}

internal/feed/calendar.go

@@ -1,11 +1,19 @@
 package feed
 
-import "time"
+import (
+	"log"
+	"net/http"
+	"os"
+	"strings"
+	"time"
+
+	ics "github.com/arran4/golang-ical"
+)
 
 // TODO: very inflexible, refactor to allow more customizability
 // TODO: allow changing first day of week
 // TODO: allow changing between showing the previous and next week and the entire month
-func NewCalendar(now time.Time) *Calendar {
+func NewCalendar(now time.Time, icsurl string) *Calendar {
 	year, week := now.ISOWeek()
 	weekday := now.Weekday()
 
@@ -25,18 +33,35 @@ func NewCalendar(now time.Time) *Calendar {
 
 	startDaysFrom := now.Day() - int(weekday+6)
 
-	days := make([]int, 21)
-
+	days := make([]CalendayDay, 21)
+	events, _ := ReadPublicIcs(icsurl)
 	for i := 0; i < 21; i++ {
 		day := startDaysFrom + i
+		month := now.Month()
+		var dayEvent CalendarEvent
 
 		if day < 1 {
 			day = previousMonthDays + day
+			month -= 1
 		} else if day > currentMonthDays {
 			day = day - currentMonthDays
+			month += 1
 		}
-
-		days[i] = day
+		if events != nil {
+			for _, event := range events {
+				startAt, err := event.GetStartAt()
+				if err != nil {
+					log.Panic(err)
+				}
+				if startAt.Day() == day && startAt.Month() == month {
+					dayEvent.StartedDay = startAt
+					dayEvent.EventHover = event.GetProperty("SUMMARY").Value
+					days[i].IsEvent = true
+				}
+			}
+		}
+		days[i].Day = day
+		days[i].Event = dayEvent
 	}
 
 	return &Calendar{
@@ -48,6 +73,33 @@ func NewCalendar(now time.Time) *Calendar {
 	}
 }
 
+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
+}
+
 func daysInMonth(m time.Month, year int) int {
 	return time.Date(year, m+1, 0, 0, 0, 0, 0, time.UTC).Day()
 }

internal/feed/primitives.go

@@ -21,12 +21,21 @@ type ForumPost struct {
 
 type ForumPosts []ForumPost
 
+type CalendarEvent struct {
+	StartedDay time.Time
+	EventHover string
+}
+type CalendayDay struct {
+	Day     int
+	IsEvent bool
+	Event   CalendarEvent
+}
 type Calendar struct {
 	CurrentDay        int
 	CurrentWeekNumber int
 	CurrentMonthName  string
 	CurrentYear       int
-	Days              []int
+	Days              []CalendayDay
 }
 
 type Weather struct {

internal/widget/calendar.go

@@ -12,6 +12,7 @@ import (
 type Calendar struct {
 	widgetBase `yaml:",inline"`
 	Calendar   *feed.Calendar
+	Icsurl     string `yaml:"icsurl"`
 }
 
 func (widget *Calendar) Initialize() error {
@@ -21,7 +22,7 @@ func (widget *Calendar) Initialize() error {
 }
 
 func (widget *Calendar) Update(ctx context.Context) {
-	widget.Calendar = feed.NewCalendar(time.Now())
+	widget.Calendar = feed.NewCalendar(time.Now(), widget.Icsurl)
 	widget.withError(nil).scheduleNextUpdate()
 }