| 1 | package calendar |
| 2 | |
| 3 | import ( |
| 4 | "fmt" |
| 5 | "html/template" |
| 6 | "strconv" |
| 7 | ) |
| 8 | |
| 9 | // appFuncs are this app's own template helpers, on top of rastrillo's. |
| 10 | // |
| 11 | // Each one exists because the alternative is arithmetic or branching |
| 12 | // inside a template, and a template is the one place in this app that |
| 13 | // has no tests and no compiler. Anything with a decision in it is |
| 14 | // computed in Go and printed here. |
| 15 | var appFuncs = template.FuncMap{ |
| 16 | "if_eq": ifEq, |
| 17 | "repeatOptions": repeatOptions, |
| 18 | "calendarOptions": calendarOptions, |
| 19 | "eventCancelHref": eventCancelHref, |
| 20 | "zoneOptions": zoneOptions, |
| 21 | "weekStartOptions": weekStartOptions, |
| 22 | "minutesLabel": minutesLabel, |
| 23 | "duration": humanDuration, |
| 24 | "feedURL": feedURL, |
| 25 | "deleteAllLabel": deleteAllLabel, |
| 26 | "canWrite": CanWrite, |
| 27 | } |
| 28 | |
| 29 | // deleteAllLabel names the expensive option with its own count, so the |
| 30 | // warning is in the label rather than in a sentence beside it. |
| 31 | // |
| 32 | // "All 52 of them" is a different decision from "All". A series with no |
| 33 | // end has no count to give, and says that instead of inventing one. |
| 34 | func deleteAllLabel(count int, forever bool) string { |
| 35 | if forever || count <= 0 { |
| 36 | return "Every occurrence, including all the future ones" |
| 37 | } |
| 38 | if count == 1 { |
| 39 | return "The only occurrence" |
| 40 | } |
| 41 | return fmt.Sprintf("All %d of them", count) |
| 42 | } |
| 43 | |
| 44 | // ifEq returns value when field matches want, and "" otherwise. It is |
| 45 | // how a shared error string is shown against exactly the field it |
| 46 | // belongs to, without the form data carrying one error slot per field. |
| 47 | func ifEq(field, want, value string) string { |
| 48 | if field == want { |
| 49 | return value |
| 50 | } |
| 51 | return "" |
| 52 | } |
| 53 | |
| 54 | // repeatOptions builds the repeat picker, labelled against this event's |
| 55 | // own start date so it says "Every Wednesday" rather than "Weekly". |
| 56 | func repeatOptions(startLocal, tz string, allDay bool, selected string) []map[string]any { |
| 57 | if selected == "" { |
| 58 | selected = RepeatNone |
| 59 | } |
| 60 | var out []map[string]any |
| 61 | for _, c := range RepeatChoicesFor(startLocal, tz, allDay) { |
| 62 | out = append(out, map[string]any{ |
| 63 | "Value": c.Value, |
| 64 | "Label": c.Label, |
| 65 | "Selected": c.Value == selected, |
| 66 | }) |
| 67 | } |
| 68 | return out |
| 69 | } |
| 70 | |
| 71 | func calendarOptions(cals []CalendarView, selected int64) []map[string]any { |
| 72 | var out []map[string]any |
| 73 | for _, c := range cals { |
| 74 | out = append(out, map[string]any{ |
| 75 | "Value": strconv.FormatInt(c.ID, 10), |
| 76 | "Label": c.Name, |
| 77 | "Selected": c.ID == selected, |
| 78 | }) |
| 79 | } |
| 80 | return out |
| 81 | } |
| 82 | |
| 83 | // eventCancelHref sends Cancel back where it came from: the event's own |
| 84 | // page when editing, and the calendar when creating, because a new |
| 85 | // event has no page to return to. |
| 86 | func eventCancelHref(eventID int64) string { |
| 87 | if eventID == 0 { |
| 88 | return "/today" |
| 89 | } |
| 90 | return "/events/" + strconv.FormatInt(eventID, 10) |
| 91 | } |
| 92 | |
| 93 | func zoneOptions(selected string) []map[string]any { |
| 94 | var out []map[string]any |
| 95 | found := false |
| 96 | for _, z := range CommonZones { |
| 97 | if z == selected { |
| 98 | found = true |
| 99 | } |
| 100 | out = append(out, map[string]any{"Value": z, "Label": z, "Selected": z == selected}) |
| 101 | } |
| 102 | // Somebody in a zone the short list omits must not have it silently |
| 103 | // replaced by the first option the moment they save anything else. |
| 104 | if !found && selected != "" { |
| 105 | out = append(out, map[string]any{"Value": selected, "Label": selected, "Selected": true}) |
| 106 | } |
| 107 | return out |
| 108 | } |
| 109 | |
| 110 | func weekStartOptions(selected int) []map[string]any { |
| 111 | return []map[string]any{ |
| 112 | {"Value": strconv.Itoa(WeekStartMonday), "Label": "Monday", "Selected": selected == WeekStartMonday}, |
| 113 | {"Value": strconv.Itoa(WeekStartSaturday), "Label": "Saturday", "Selected": selected == WeekStartSaturday}, |
| 114 | {"Value": strconv.Itoa(WeekStartSunday), "Label": "Sunday", "Selected": selected == WeekStartSunday}, |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | // minutesLabel writes a reminder offset the way somebody would say it. |
| 119 | func minutesLabel(min int) string { |
| 120 | switch { |
| 121 | case min == 0: |
| 122 | return "at the time it starts" |
| 123 | case min < 0: |
| 124 | return fmt.Sprintf("%s afterwards", humanDuration(-min)) |
| 125 | case min%(24*60) == 0: |
| 126 | d := min / (24 * 60) |
| 127 | if d == 1 { |
| 128 | return "one day before" |
| 129 | } |
| 130 | return fmt.Sprintf("%d days before", d) |
| 131 | default: |
| 132 | return humanDuration(min) + " before" |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | // feedURL builds the absolute subscription URL. Absolute because a |
| 137 | // calendar client is given this by copy and paste and has no page to |
| 138 | // resolve a relative path against. |
| 139 | func feedURL(origin, token string) string { |
| 140 | return origin + "/feed/" + token + ".ics" |
| 141 | } |
| 142 | |
amadan