#+TITLE: Demons calendar
#+AUTHOR: screwlisp
#+PROPERTY: header-args:lisp :tangle yes


* My amazing goban symbolic calendar
#+CALL: goban-print(sym='*l19*)

#+RESULTS:
#+begin_example
_A: 001 CF2 CF3 CF4 CF5 CF6 007 008 009 010 011 012 013 014 015 016 017 018 019
_B: 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038
_C: 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057
_D: 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075 076
_E: 077 078 079 080 081 082 083 084 085 086 087 088 089 090 091 092 093 094 095
_F: 096 097 098 099 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114
_G: 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133
_H: 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152
_J: 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171
_K: 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190
_L: 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209
_M: 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228
_N: 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247
_O: 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266
_P: 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285
_Q: 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304
_R: 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323
_S: 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342
_T: 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361
#+end_example
Alright! My own entry in my own calendar challenge
* Screwtape's calendar
I had the idea that a time sequence could be a list.
** SCREWTAPE'S CALENDAR CODE
#+make-calendar
#+begin_src lisp
 (defvar *cal* (list))
#+end_src

#+RESULTS:
: *CAL*
** Events
and that events could be 3 letter ANSI graphic char symbols.

The tricky thing is that I thought they should be interned in a different package.
*** event package
#+begin_src lisp
 (defvar *cal-event-pkg* (uiop:ensure-package :|scr|))
#+end_src

#+RESULTS:
: *CAL-EVENT-PKG*

*** add events

#+name: add-intern-event
#+begin_src lisp
 (defun add-event (sym)
   (push (eval `(defvar ,(intern (format nil "~a" sym) *cal-event-pkg*)))
         ,*cal*))
#+end_src

#+RESULTS: add-intern-event
: ADD-EVENT

*** events and event naming
Since one might want to compare lots and lots of events at once,
I'm going to use 3 letter ansi graphic char names per event, but
put an event class in the symbol-value

**** Event class
#+begin_src lisp
 (defclass calendar-event ()
   ((subevents :type t :initarg :subevents :accessor subevents)
    (show-sub-p :initarg :show-sub-p :accessor show-sub-p)
    (notes :Type t :initarg :notes :accessor notes)
    (show-notes-p :initarg :show-notes-p :accessor show-notes-p)
    (show-obj-p :initarg :show-obj-p :accessor show-obj-p))
   (:default-initargs :notes () :subevents ()
    :show-notes-p t :show-sub-p t :show-obj-p nil)
   (:documentation "Screwtape's calendar event class"))

 (defmethod print-object ((obj calendar-event) stream)
   (princ "#<" stream)
   (when (show-obj-p obj) (call-next-method) (terpri stream))
   (when (show-sub-p obj)
     (princ "Subevents: " stream) (terpri stream)
     (princ (subevents obj) stream)
     (terpri stream))
   (when (show-notes-p obj)
     (princ "Notes: " stream)
     (format stream "~{~%~a~}" (notes obj)))
   (princ ">" stream))
#+end_src

#+RESULTS:
: #<STANDARD-METHOD COMMON-LISP:PRINT-OBJECT (CALENDAR-EVENT T) {10080A32C3}>

** A week calendar
*** Fresh special variables
#+name: fresh-cal
#+begin_src lisp :var name='wek
 (setq *cal* ())
 (setq *cal-event-pkg*
       (uiop:ensure-package name))

#+end_src

#+RESULTS: fresh-cal
: #<PACKAGE "WEK">

#+RESULTS:
: #<PACKAGE "WEK">
*** Add days with events
#+begin_src lisp
 (loop for day in '(mon tue wed thu fri sat sun)
       for sym = (car (add-event day))
       for evn = (make-instance 'calendar-event)
       do (set sym evn)
       finally
          (setf *cal* (nreverse *cal*))
          (return *cal*))
#+end_src

#+RESULTS:
| WEK::MON | WEK::TUE | WEK::WED | WEK::THU | WEK::FRI | WEK::SAT | WEK::SUN |
*** Add some stuff to tuesday.
#+begin_src lisp
 (push "some-note" (notes wek::tue))
 (push "some other note" (notes wek::tue))
 (push "multi
 line" (notes wek::tue))
 (push 'bish (subevents wek::tue))
 (push 'bash (subevents wek::tue))
 (push 'bosh (subevents wek::tue))
 wek::tue
#+end_src

#+RESULTS:
: #<#<CALENDAR-EVENT {1001DE7A93}>
: Subevents: (BOSH BASH BISH)
: Notes:
: multi
: line
: some other note
: some-note

*** Save cal to var and look at a day
#+begin_src lisp
 (defparameter *wek* *cal*)
 (list (second *wek*) (symbol-value (second *wek*)))
#+end_src

#+RESULTS:
: (WEK::TUE #<#<CALENDAR-EVENT {1001DE7A93}>
: Subevents: (BOSH BASH BISH)
: Notes:
: multi
: line
: some other note
: some-note)

*** Actually, I really want to get the unreadable print as a padded list of lines.
#+begin_src lisp :results verbatim output
 (defmethod list-unreadable ((obj calendar-event) &optional (padded-to 32))
   (with-input-from-string
       (in (with-output-to-string (*standard-output*)
             (princ obj)))
     (loop for line = (read-line in nil nil)
           for padded = (format nil "~vA" padded-to line)
           while line collect padded)))
 (let ((summary (list-unreadable wek::tue)))
   (format t "~{~s~^~%~}" summary))
#+end_src

#+RESULTS:
: #<Subevents:                    "
: "(BOSH BASH BISH)                "
: "Notes:                          "
: "multi                           "
: "line                            "
: "some other note                 "
: "some-note>

*** util
#+begin_src lisp
 (eval-when (:compile-toplevel :execute :load-toplevel)
   (defmacro clss ((sym) &optional (count 0))
     `(car (last (subevents (symbol-value
                             ,(if (zerop count)
                                  `',sym
                                  `(clss (,sym) ,(1- count)))))))))


#+end_src

*** Create goban year calendar
#+begin_src lisp
   (loop
     initially (setf *cal-event-pkg* (uiop:ensure-package :l19))
     for row below 19
     for letter in '(a b c d e f g h j k l m n o p q r s t)
     for str = (format nil "_~a:" letter)
     collect
     (car (Add-event str)) into tmp
     do
        (set (car (last tmp))
             (make-instance
              'calendar-event
              :subevents
              (loop
                initially (setq *cal* '())
                for col below 19
                for flat = (+ col (* 19 row) 1)
                for pad = (format nil "~3,'0d" flat)
                for sym = (car (add-event pad))
                do
                   (set sym (make-instance 'calendar-event))
                finally (return (nreverse *cal*)))))
     finally (setq *cal* tmp))
   (defvar *l19*)
   (setq *l19* (make-instance 'calendar-event :subevents *cal*))
   (setq *cal* nil)

 (defparameter *361st-day*
   (clss (*l19*) 1))
   (symbol-value *361st-day*)
#+end_src

#+RESULTS:
: #<Subevents:
: (NIL)
: Notes: >

*** Add the remaining 5 days
So every year is covered in one go.

These are going to be handled like this:

January 2 3 4 5 6 ie  002 003 004 005 006

get replaced by CF2 CF3 CF4 CF5 CF6, mnemonically "conflict".

CF2 has subevents: 002 and 362, CF3 -> 003 and 363 etc until CF6.

The presence of this line also naturally orients the *l19* square.
#+begin_src lisp
 (loop initially (setq *cal* nil)
       for x from 2 to 6
       for yend = (car (add-event (format nil "36~d" x)))
       for orig = (intern (format nil "00~d" x) *cal-event-pkg*)
       for comb = (car (add-event (format nil "CF~d" x)))
       do (set yend (make-instance 'calendar-event))
          (set comb (make-instance 'calendar-event :subevents `(,orig ,yend)))
       collect comb into combo
       finally (setf (subseq (subevents (symbol-value (car (subevents *l19*))))
                             1 6)
                     combo))

#+end_src

#+RESULTS:
: NIL

*** Goban print!
#+begin_src lisp
 (defun goban-print (l19-calendar &optional (stream t))
   (loop for row in (subevents l19-calendar) do
     (format
      stream
      "~a ~{~a~^ ~}~%" row
      (subevents (symbol-value row)))))
 (goban-print *l19*)
#+end_src

*** Do goban print
#+name: goban-print
#+HEADER: :var sym='*l19*
#+begin_src lisp :results output
 (goban-print (symbol-value sym)))
#+end_src

#+RESULTS: goban-print
#+begin_example
_A: 001 CF2 CF3 CF4 CF5 CF6 007 008 009 010 011 012 013 014 015 016 017 018 019
_B: 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038
_C: 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057
_D: 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075 076
_E: 077 078 079 080 081 082 083 084 085 086 087 088 089 090 091 092 093 094 095
_F: 096 097 098 099 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114
_G: 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133
_H: 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152
_J: 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171
_K: 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190
_L: 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209
_M: 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228
_N: 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247
_O: 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266
_P: 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285
_Q: 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304
_R: 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323
_S: 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342
_T: 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361
#+end_example

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