From b5b74623ac842bdc245bfa1655cfaaee9b12a5eb Mon Sep 17 00:00:00 2001 From: Aaron Bieber Date: Sat, 23 Nov 2024 13:06:38 -0700 Subject: [PATCH] initial --- .envrc | 1 + .gitignore | 5 ++ LICENSE | 15 +++++ flake.lock | 26 ++++++++ flake.nix | 49 ++++++++++++++ go.mod | 13 ++++ go.sum | 10 +++ main.go | 193 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 8 files changed, 312 insertions(+) create mode 100644 .envrc create mode 100644 .gitignore create mode 100644 LICENSE create mode 100644 flake.lock create mode 100644 flake.nix create mode 100644 go.mod create mode 100644 go.sum create mode 100644 main.go diff --git a/.envrc b/.envrc new file mode 100644 index 0000000..3550a30 --- /dev/null +++ b/.envrc @@ -0,0 +1 @@ +use flake diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..b9e7176 --- /dev/null +++ b/.gitignore @@ -0,0 +1,5 @@ +*.bak +calnow +.direnv +result +tags diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..5718c90 --- /dev/null +++ b/LICENSE @@ -0,0 +1,15 @@ +/* + * Copyright (c) 2024 Aaron Bieber + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ diff --git a/flake.lock b/flake.lock new file mode 100644 index 0000000..bbf0ac0 --- /dev/null +++ b/flake.lock @@ -0,0 +1,26 @@ +{ + "nodes": { + "nixpkgs": { + "locked": { + "lastModified": 1731755305, + "narHash": "sha256-v5P3dk5JdiT+4x69ZaB18B8+Rcu3TIOrcdG4uEX7WZ8=", + "owner": "NixOS", + "repo": "nixpkgs", + "rev": "057f63b6dc1a2c67301286152eb5af20747a9cb4", + "type": "github" + }, + "original": { + "id": "nixpkgs", + "ref": "nixos-24.11", + "type": "indirect" + } + }, + "root": { + "inputs": { + "nixpkgs": "nixpkgs" + } + } + }, + "root": "root", + "version": 7 +} diff --git a/flake.nix b/flake.nix new file mode 100644 index 0000000..434fa5c --- /dev/null +++ b/flake.nix @@ -0,0 +1,49 @@ +{ + description = "calnow: stuff and calnows"; + + inputs.nixpkgs.url = "nixpkgs/nixos-24.11"; + + outputs = + { self + , nixpkgs + , + }: + let + supportedSystems = [ "x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin" ]; + forAllSystems = nixpkgs.lib.genAttrs supportedSystems; + nixpkgsFor = forAllSystems (system: import nixpkgs { inherit system; }); + in + { + overlay = _: prev: { inherit (self.packages.${prev.system}) calnow; }; + + packages = forAllSystems (system: + let + pkgs = nixpkgsFor.${system}; + in + { + calnow = pkgs.buildGoModule { + pname = "calnow"; + version = "v0.0.0"; + src = ./.; + + vendorHash = "sha256-SWkQMF9bFAzqsmHWKNsTpx8HuXrXZe9+vIOI0mmAPrw="; + }; + }); + + defaultPackage = forAllSystems (system: self.packages.${system}.calnow); + devShells = forAllSystems (system: + let + pkgs = nixpkgsFor.${system}; + in + { + default = pkgs.mkShell { + shellHook = '' + PS1='\u@\h:\@; ' + nix run github:qbit/xin#flake-warn + echo "Go `${pkgs.go}/bin/go version`" + ''; + nativeBuildInputs = with pkgs; [ git go gopls go-tools ]; + }; + }); + }; +} diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..274ff41 --- /dev/null +++ b/go.mod @@ -0,0 +1,13 @@ +module suah.dev/calnow + +go 1.23.2 + +require ( + github.com/emersion/go-webdav v0.5.0 + github.com/sosodev/duration v1.3.1 +) + +require ( + github.com/emersion/go-ical v0.0.0-20220601085725-0864dccc089f // indirect + github.com/teambition/rrule-go v1.8.2 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..ba9c902 --- /dev/null +++ b/go.sum @@ -0,0 +1,10 @@ +github.com/emersion/go-ical v0.0.0-20220601085725-0864dccc089f h1:feGUUxxvOtWVOhTko8Cbmp33a+tU0IMZxMEmnkoAISQ= +github.com/emersion/go-ical v0.0.0-20220601085725-0864dccc089f/go.mod h1:2MKFUgfNMULRxqZkadG1Vh44we3y5gJAtTBlVsx1BKQ= +github.com/emersion/go-vcard v0.0.0-20230815062825-8fda7d206ec9/go.mod h1:HMJKR5wlh/ziNp+sHEDV2ltblO4JD2+IdDOWtGcQBTM= +github.com/emersion/go-webdav v0.5.0 h1:Ak/BQLgAihJt/UxJbCsEXDPxS5Uw4nZzgIMOq3rkKjc= +github.com/emersion/go-webdav v0.5.0/go.mod h1:ycyIzTelG5pHln4t+Y32/zBvmrM7+mV7x+V+Gx4ZQno= +github.com/sosodev/duration v1.3.1 h1:qtHBDMQ6lvMQsL15g4aopM4HEfOaYuhWBw3NPTtlqq4= +github.com/sosodev/duration v1.3.1/go.mod h1:RQIBBX0+fMLc/D9+Jb/fwvVmo0eZvDDEERAikUR6SDg= +github.com/teambition/rrule-go v1.7.2/go.mod h1:mBJ1Ht5uboJ6jexKdNUJg2NcwP8uUMNvStWXlJD3MvU= +github.com/teambition/rrule-go v1.8.2 h1:lIjpjvWTj9fFUZCmuoVDrKVOtdiyzbzc93qTmRVe/J8= +github.com/teambition/rrule-go v1.8.2/go.mod h1:Ieq5AbrKGciP1V//Wq8ktsTXwSwJHDD5mD/wLBGl3p4= diff --git a/main.go b/main.go new file mode 100644 index 0000000..0e8792f --- /dev/null +++ b/main.go @@ -0,0 +1,193 @@ +package main + +import ( + "context" + "flag" + "log" + "net/http" + "os" + "slices" + "time" + + "github.com/emersion/go-webdav" + "github.com/emersion/go-webdav/caldav" + "github.com/sosodev/duration" +) + +const ( + fullTimeFmt = "20060102T150405" + fullFimeTmt = "20060102T150405" +) + +var ( + debug = false +) + +func msg(fmt string, args ...any) { + if debug { + log.Printf(fmt, args...) + } +} + +func between(now, begin, end time.Time) bool { + return now.After(begin) && now.Before(end) +} + +func fixDate(a, b time.Time) time.Time { + return time.Date( + a.Year(), + a.Month(), + a.Day(), + a.Hour(), + a.Minute(), + a.Second(), + a.Nanosecond(), + b.Location(), + ) +} + +func main() { + flag.BoolVar(&debug, "debug", false, "print debug messages") + flag.Parse() + username := os.Getenv("CALNOW_USER") + serverURL := os.Getenv("CALNOW_URL") + password := os.Getenv("CALNOW_PASS") + + if username == "" || password == "" { + log.Fatal("Please set CALNOW_USER and CALNOW_PASS environment variables") + } + + client, err := caldav.NewClient(webdav.HTTPClientWithBasicAuth( + &http.Client{}, + username, + password, + ), serverURL) + if err != nil { + log.Fatal("Failed to create client:", err) + } + + ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second) + defer cancel() + + princ, err := client.FindCurrentUserPrincipal(ctx) + + homeSets, err := client.FindCalendarHomeSet(ctx, princ) + if err != nil { + log.Fatal("Failed to find home set:", err) + } + + calendars, err := client.FindCalendars(ctx, homeSets) + if err != nil { + log.Printf("Failed to find calendars for home set %s: %v", homeSets, err) + } + + now := time.Now() + start := time.Date( + now.Year(), + now.Month(), + now.Day(), + 0, 0, 1, 0, + now.Location(), + ) + + end := time.Date( + now.Year(), + now.Month(), + now.Day(), + 23, 59, 59, 999999999, + now.Location(), + ) + + for _, cal := range calendars { + if !slices.Contains(cal.SupportedComponentSet, "VEVENT") { + continue + } + + path := cal.Path + query := &caldav.CalendarQuery{ + CompRequest: caldav.CalendarCompRequest{ + Name: "VCALENDAR", + Comps: []caldav.CalendarCompRequest{{ + Name: "VEVENT", + Props: []string{ + "SUMMARY", + "UID", + "DTSTART", + "DTEND", + "DURATION", + }, + }}, + }, + + CompFilter: caldav.CompFilter{ + Name: "VCALENDAR", + Comps: []caldav.CompFilter{{ + Name: "VEVENT", + Start: start, + End: end, + }}, + }, + } + events, err := client.QueryCalendar(ctx, path, query) + if err != nil { + continue + } + for _, e := range events { + for i := range e.Data.Children { + sum := e.Data.Children[i].Props.Get("SUMMARY") + end := e.Data.Children[i].Props.Get("DTEND") + dur := e.Data.Children[i].Props.Get("DURATION") + begin := e.Data.Children[i].Props.Get("DTSTART") + + if sum != nil { + msg("%s:%s", cal.Name, sum.Value) + } + + if begin == nil && dur == nil { + continue + } + + if end != nil { + endTime, err := time.Parse(fullTimeFmt, end.Value) + if err != nil { + continue + } + beginTime, err := time.Parse(fullTimeFmt, begin.Value) + if err != nil { + continue + } + + endTime = fixDate(endTime, now) + beginTime = fixDate(beginTime, now) + + msg("%s <%s> %s, between: %t", beginTime, now, endTime, between(now, beginTime, endTime)) + if between(now, beginTime, endTime) { + os.Exit(0) + } + } + + if dur != nil && begin != nil { + beginTime, err := time.Parse(fullTimeFmt, begin.Value) + if err != nil { + continue + } + eDur, err := duration.Parse(dur.Value) + if err != nil { + continue + } + endTime := beginTime.Add(eDur.ToTimeDuration()) + + endTime = fixDate(endTime, now) + beginTime = fixDate(beginTime, now) + + msg("%s <%s> %s, between: %t", beginTime, now, endTime, between(now, beginTime, endTime)) + if between(now, beginTime, endTime) { + os.Exit(0) + } + } + } + } + } + + os.Exit(1) +}