Игнатенко Алексей

robbery.js

@@ -4,7 +4,63 @@
  * Сделано задание на звездочку
  * Реализовано оба метода и tryLater
  */
-const isStar = true;
+const isStar = false;
+
+const minutesPerHour = 60;
+const hourPerDay = 24;
+
+let weekDays = ['ПН', 'ВТ', 'СР', 'ЧТ', 'ПТ', 'СБ', 'ВС'];
+
+let dayTimeStrToMinutes = (weekDay, timeStr, timeZone, bankTimeZone) =>
+    [weekDays.indexOf(weekDay) * minutesPerHour * hourPerDay,
+        timeStr.split(':')[0] * minutesPerHour + Number(timeStr.split(':')[1]),
+        (bankTimeZone - (timeZone === undefined ? 0 : Number(timeZone))) * minutesPerHour
+    ].reduce((a, b) => a + b);
+
+let addTimeToTwoChars = (time) => time.toString().length === 2 ? time.toString() : `0${time}`;
+
+function minutesToDayTime(minutes, bankTimeZone) {
+    let weekDay = parseInt(minutes / (minutesPerHour * hourPerDay));
+    minutes -= minutesPerHour * hourPerDay * parseInt(minutes / (minutesPerHour * hourPerDay));
+    weekDay = weekDays[weekDay];
+    let hours = parseInt(minutes / minutesPerHour);
+    minutes -= hours * minutesPerHour;
+    bankTimeZone = !bankTimeZone ? '' : `+${bankTimeZone}`;
+
+    return {
+        day: weekDay,
+        hours: addTimeToTwoChars(hours),
+        minutes: addTimeToTwoChars(minutes),
+        tz: bankTimeZone };
+}
+
+function getBankSchedule(workingHours, bankTimeZone) {
+    let endTime = dayTimeStrToMinutes(...`СР 23:59+${bankTimeZone}`.split(/ |\+/), bankTimeZone);
+    let endWeek = dayTimeStrToMinutes(...`ВС 23:59+${bankTimeZone}`.split(/ |\+/), bankTimeZone);
+
+    return weekDays
+        .slice(0, 3)
+        .map((day)=>
+            -dayTimeStrToMinutes(...`${day} ${workingHours.from}`.split(/ |\+/), bankTimeZone))
+        .concat(
+            weekDays
+                .slice(0, 3)
+                .map((day)=>
+                    dayTimeStrToMinutes(
+                        ...`${day} ${workingHours.to}`.split(/ |\+/), bankTimeZone)))
+        .concat([endTime, -endWeek]);
+}
+
+function getSign(number) {
+    let sign = isNaN(Math.sign(number)) ? 1 : Math.sign(number);
+    if (isNaN(sign)) {
+        sign = 1;
+    } else if (sign === 0) {
+        sign = -1;
+    }
+
+    return sign;
+}
 
 /**
  * @param {Object} schedule – Расписание Банды
@@ -16,6 +72,37 @@ const isStar = true;
  */
 function getAppropriateMoment(schedule, duration, workingHours) {
     console.info(schedule, duration, workingHours);
+    let bankTimeZone = Number(workingHours.from.split('+')[1]);
+    bankTimeZone = isNaN(bankTimeZone) ? 0 : bankTimeZone;
+    workingHours = getBankSchedule(workingHours, bankTimeZone);
+    let answer = [NaN].concat(Object.keys(schedule)
+        .map((friend)=>[...schedule[friend]])
+        .reduce((a, b)=>a.concat(b), [])
+        .map((record)=>
+            [
+                dayTimeStrToMinutes(...record.from.split(/ |\+/), bankTimeZone),
+                -dayTimeStrToMinutes(...record.to.split(/ |\+/), bankTimeZone)])
+        .reduce((a, b)=>a.concat(b), [])
+        .concat(workingHours))
+        .sort((a, b) => Math.abs(a) - Math.abs(b))
+        .reduce(function (result, time) {
+            let lastInterval = result.intervals[result.intervals.length - 1];
+            let sign = getSign(time);
+            if (!(result.count += sign)) {
+                result.intervals.push({ from: -time, to: 0 });
+            } else if (result.count === 1 && (lastInterval !== undefined) && !(lastInterval.to)) {
+                result.intervals[result.intervals.length - 1].to = time;
+            }
+
+            return result;
+        }, { count: 0, intervals: [] })
+        .intervals
+        .filter((record)=>Math.abs(record.to - record.from) >= duration)
+        .map((record)=> {
+            return {
+                from: minutesToDayTime(record.from, bankTimeZone),
+                to: minutesToDayTime(record.to, bankTimeZone) };
+        });
 
     return {
 
@@ -24,7 +111,7 @@ function getAppropriateMoment(schedule, duration, workingHours) {
          * @returns {Boolean}
          */
         exists: function () {
-            return false;
+            return Boolean(answer.length);
         },
 
         /**
@@ -34,7 +121,11 @@ function getAppropriateMoment(schedule, duration, workingHours) {
          * @returns {String}
          */
         format: function (template) {
-            return template;
+            return !answer.length
+                ? '' : template
+                    .replace('%DD', answer[0].from.day)
+                    .replace('%HH', answer[0].from.hours)
+                    .replace('%MM', answer[0].from.minutes);
         },
 
         /**