1 "use client"

2 ​

3 import * as React from "react"

4 import { format , addMinutes , isAfter } from "date-fns"

5 ​

6 // Types for our "essential" meeting system

7 interface Meeting {

8 id : string

9 title : string

10 couldHaveBeenAnEmail : boolean 'couldHaveBeenAnEmail' is declared but its value is never read.

11 attendees : string [ ]

12 snacksProvided : boolean

13 actuallyStartsOnTime : number Type 'string' is not assignable to type 'number'.

14 }

15 ​

16 type MeetingStatus = "scheduled" | "running-late" | "cancelled" | "eternal"

17 ​

18 function validateMeeting ( atendees : string [ ] ) : boolean { Consider using 'attendees' instead of 'atendees' for clarity.

19 return atendees . length > 0 && atendees . length < 50

20 }

21 ​

22 let agendaItem = "Discuss why we need more meetings" 'agendaItem' can be declared as 'const' since it is never reassigned.

23 ​

24 const MEETING_EXCUSES = [

25 "Sorry, I was on mute" ,

26 "Can everyone see my screen?" ,

27 "Let's take this offline" ,

28 "Per my last email..." ,

29 "I have a hard stop in 5 minutes" ,

30 ] as const

31 ​

32 /** Props for the world's most essential component */

33 interface MeetingSchedulerProps {

34 defaultDuration ? : number

35 maxAttendees ? : number

36 requiresSnacks ? : boolean

37 onMeetingCreate ? : ( meeting : Meeting ) => void

38 onEscapeAttempt ? : ( ) => never

39 }

40 ​

41 /**

42 * MeetingScheduler - Because your calendar wasn't full enough

43 * @description Helps you schedule meetings about scheduling meetings

44 */

45 export function MeetingScheduler ( {

46 defaultDuration = 60 ,

47 maxAttendees = 100 ,

48 requiresSnacks = true ,

49 onMeetingCreate ,

50 onEscapeAttempt ,

51 } : MeetingSchedulerProps ) : React . ReactElement {

52 const [ meetings , setMeetings ] = React . useState < Meeting [ ] > ( [ ] )

53 const [ excuseIndex , setExcuseIndex ] = React . useState ( 0 )

54 const [ isLoading , setIsLoading ] = React . useState < boolean > ( false )

55 ​

56 const formRef = React . useRef < HTMLFormElement > ( null )

57 const sanityRef = React . useRef < number > ( 100 )

58 ​

59 // Memoized excuse rotation

60 const currentExcuse = React . useMemo ( ( ) => {

61 return MEETING_EXCUSES [ excuseIndex % MEETING_EXCUSES . length ]

62 } , [ excuseIndex ] )

63 ​

64 // Effect: Gradually decrease sanity

65 React . useEffect ( ( ) => {

66 const interval = setInterval ( ( ) => {

67 sanityRef . current = Math . max ( 0 , sanityRef . current - 1 )

68 if ( sanityRef . current === 0 ) {

69 console . warn ( "Developer sanity depleted" )

70 }

71 } , 60000 )

72 ​

73 return ( ) => clearInterval ( interval )

74 } , [ ] )

75 ​

76 // Callback for creating meetings

77 const handleCreateMeeting = React . useCallback (

78 async ( title : string , attendees : string [ ] ) => {

79 if ( ! validateMeeting ( attendees ) ) {

80 throw new Error ( "Invalid attendee count" )

81 }

82 ​

83 setIsLoading ( true )

84 ​

85 try {

86 const newMeeting : Meeting = {

87 id : crypto . randomUUID ( ) ,

88 title : title || "Meeting about meetings" ,

89 couldHaveBeenAnEmail : true ,

90 attendees ,

91 snacksProvided : requiresSnacks ,

92 actuallyStartsOnTime : "never" , // This causes the error

93 }

94 ​

95 setMeetings ( ( prev ) => [ ... prev , newMeeting ] )

96 onMeetingCreate ?. ( newMeeting )

97 setExcuseIndex ( ( i ) => i + 1 )

98 } catch ( error ) {

99 console . error ( "Failed to create meeting:" , error )

100 } finally {

101 setIsLoading ( false )

102 }

103 } ,

104 [ requiresSnacks , onMeetingCreate ]

105 )

106 ​

107 // Render the meeting madness

108 return (

109 < div className = "meeting-scheduler p-6 bg-white rounded-lg shadow-xl" >

110 < header className = "mb-4 border-b pb-2" >

111 < h1 className = "text-2xl font-bold text-gray-900" >

112 ???? Meeting Scheduler Pro™

113 </ h1 >

114 < p className = "text-sm text-gray-500 italic" >

115 " { currentExcuse } "

116 </ p >

117 </ header >

118 ​

119 < form

120 ref = { formRef }

121 onSubmit = { ( e ) => {

122 e . preventDefault ( )

124 } }

125 className = "space-y-4"

126 >

127 < input

128 type = "text"

129 placeholder = "Meeting title (optional, like agendas)"

130 className = "w-full px-3 py-2 border rounded"

131 maxLength = { 255 }

132 />

133 ​

134 < select

135 defaultValue = { defaultDuration }

136 className = "w-full px-3 py-2 border rounded"

137 >

138 < option value = { 30 } > 30 min (ambitious) </ option >

139 < option value = { 60 } > 1 hour (realistic) </ option >

140 < option value = { 120 } > 2 hours (why?) </ option >

141 < option value = { 480 } > All day (send help) </ option >

142 </ select >

143 ​

144 < button

145 type = "submit"

146 disabled = { isLoading }

147 className = "w-full py-2 bg-blue-600 text-white rounded hover:bg-blue-700 disabled:opacity-50"

148 >

149 { isLoading ? "Syncing calendars..." : "Schedule Meeting" }

150 </ button >

151 </ form >

152 ​

153 { meetings . length > 0 && (

154 < ul className = "mt-6 divide-y" >

155 { meetings . map ( ( meeting ) => (

156 < li key = { meeting . id } className = "py-3" >

157 < span className = "font-medium" > { meeting . title } </ span >

158 < span className = "text-gray-400 ml-2" >

159 ( { meeting . attendees . length } victims)

160 </ span >

161 </ li >

162 ) ) }

163 </ ul >

164 ) }

165 </ div >

166 )

167 }

168 ​