From 2bfed63c3f3bd0f894702c946c4f4b6849114cda Mon Sep 17 00:00:00 2001
From: Maxim Pimenov <m@maps.me>
Date: Fri, 4 Mar 2016 17:47:31 +0300
Subject: [PATCH] [search] Added samples generator.

Courtesy of @ygorshenin.
---
 search/search_quality/gen-samples.lisp | 92 ++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 search/search_quality/gen-samples.lisp

diff --git a/search/search_quality/gen-samples.lisp b/search/search_quality/gen-samples.lisp
new file mode 100644
index 0000000000..3984226ce8
--- /dev/null
+++ b/search/search_quality/gen-samples.lisp
@@ -0,0 +1,92 @@
+#|
+exec /usr/local/bin/sbcl --noinform --quit --load $0 --end-toplevel-options "$@"
+|#
+
+; Silently loads :cl-json.
+(with-open-file (*standard-output* "/dev/null"
+                                   :direction :output
+                                   :if-exists :supersede)
+  (ql:quickload "cl-json"))
+
+(defparameter *samples* nil)
+
+(defparameter *minx* -180)
+(defparameter *maxx* 180)
+(defparameter *miny* -180)
+(defparameter *maxy* 180)
+
+(defun deg-to-rad (deg) (/ (* deg pi) 180))
+(defun rad-to-deg (rad) (/ (* rad 180) pi))
+
+(defun clamp (value min max)
+  (cond ((< value min) min)
+        ((> value max) max)
+        (t value)))
+
+(defun clamp-x (x) (clamp x *minx* *maxx*))
+(defun clamp-y (y) (clamp y *miny* *maxy*))
+
+(defun lon-to-x (lon) lon)
+(defun lat-to-y (lat)
+  (let* ((sinx (sin (deg-to-rad (clamp lat -86.0 86.0))))
+         (result (rad-to-deg (/ (* 0.5
+                                   (log (+ 1.0 sinx)))
+                                (- 1.0 sinx)))))
+    (clamp-y result)))
+
+(defclass pos () ((x :initarg :x)
+                  (y :initarg :y)))
+(defclass viewport () ((minx :initarg :minx)
+                       (miny :initarg :miny)
+                       (maxx :initarg :maxx)
+                       (maxy :initarg :maxy)))
+
+(defun position-lat-lon (lat lon)
+  (make-instance 'pos :x (lon-to-x lon) :y (lat-to-y lat)))
+
+(defun viewport (&key minx miny maxx maxy)
+  (make-instance 'viewport :minx minx :maxx maxx :miny miny :maxy maxy))
+
+(defclass result ()
+  ((name :initarg :name)
+   (relevancy :initarg :relevancy)
+   (types :initarg :types)
+   (position :initarg :position)
+   (house-number :initarg :house-number)))
+
+(defun make-result (relevancy name types position &key (house-number ""))
+  (make-instance 'result
+                 :name name
+                 :relevancy relevancy
+                 :types types
+                 :position position
+                 :house-number house-number))
+
+(defmacro vital (&rest args)
+  `(make-result 'vital ,@args))
+
+(defmacro relevant (&rest args)
+  `(make-result 'relevant ,@args))
+
+(defclass sample ()
+  ((query :initarg :query)
+   (locale :initarg :locale)
+   (position :initarg :position)
+   (viewport :initarg :viewport)
+   (results :initarg :results)))
+
+(defun make-sample (query locale position viewport results)
+  (make-instance 'sample
+                 :query query
+                 :locale locale
+                 :position position
+                 :viewport viewport
+                 :results results))
+
+(defmacro defsample (&rest args)
+  `(push (make-sample ,@args) *samples*))
+
+(load (merge-pathnames "samples.lisp" *load-truename*))
+
+(format *error-output* "Num samples: ~a~%" (length *samples*))
+(format t "~a~%" (json:encode-json-to-string *samples*))