p<template>
  <div class="train-schedule" @click="toggleShowState">
    <div class="schedule-wrapper">
      <ul class="stop_list">
        <li v-for="(stop, i) in followingStops" :key="i" class="stop" :class="addClasses(stop, i)">
          <span class="stop_info">
            <div class="indicator"></div>

            <div class="progress-bar"></div>

            <div class="stop-bar"></div>

            <span class="distance" v-if="stop.stopDistance">
              {{ Math.floor(stop.stopDistance) }}
            </span>

            <span class="stop-name" v-html="stop.stopName"> </span>

            <stop-date :stop="stop" />
          </span>

          <div class="stop_line" v-if="i < followingStops.length - 1">
            <div class="progress-bar"></div>

            <div v-if="stop.comments" style="color: salmon;">
              <b>{{ stop.stopNameRAW }} </b>: <span v-html="stop.comments"></span>
            </div>

            <span v-if="stop.departureLine == followingStops[i + 1].arrivalLine">
              {{ stop.departureLine }}
            </span>

            <span v-else>
              {{ stop.departureLine }} /
              {{ followingStops[i + 1].arrivalLine }}
            </span>
          </div>

          <div class="stop_line" v-else>
            <div v-if="stop.comments" style="color: salmon;">
              <b>{{ stop.stopNameRAW }} </b>: <span v-html="stop.comments"></span>
            </div>
          </div>
        </li>
      </ul>
    </div>
  </div>
</template>

<script lang="ts">
import { computed, defineComponent } from '@vue/runtime-core';
import dateMixin from '@/mixins/dateMixin';
import TrainStop from '@/scripts/interfaces/TrainStop';
import StopDate from '../Global/StopDate.vue';

export default defineComponent({
  components: { StopDate },
  props: {
    followingStops: {
      type: Array as () => TrainStop[],
      required: true,
    },
  },

  mixins: [dateMixin],

  emits: ['click'],

  data: () => ({
    icons: {
      warning: require('@/assets/icon-warning.svg'),
    },
  }),

  setup(props) {
    return {
      lastConfirmed: computed(() => {
        return props.followingStops.findIndex(
          (stop, i, stops) => stop.confirmed && !stops[i + 1]?.confirmed && !stops[i + 1]?.stopped
        );
      }),
      activeMinorStops: computed(() => {
        const lastMajorConfirmed = props.followingStops.findIndex(
          (stop, i, stops) => stop.confirmed && !stops[i + 1]?.confirmed
        );

        const activeMinorStopList: number[] = [];
        if (lastMajorConfirmed + 1 >= props.followingStops.length) return activeMinorStopList;

        for (let i = lastMajorConfirmed + 1; i < props.followingStops.length; i++) {
          if (props.followingStops[i].stopNameRAW.includes('po.')) activeMinorStopList.push(i);
          else break;
        }

        return activeMinorStopList;
      }),
    };
  },

  methods: {
    toggleShowState() {
      this.$emit('click');
    },

    addClasses(stop: TrainStop, index: number) {
      return {
        confirmed: stop.confirmed,
        stopped: stop.stopped,
        begin: stop.beginsHere,
        end: stop.terminatesHere,
        delayed: stop.departureDelay > 0,
        [stop.stopType.replaceAll(', ', '-')]:
          stop.stopType.match(new RegExp('ph|pm|pt')) && !stop.confirmed && !stop.beginsHere,
        'minor-stop-active': this.activeMinorStops.includes(index),
        'last-confirmed': index == this.lastConfirmed && !stop.terminatesHere,
      };
    },
  },
});
</script>

<style lang="scss" scoped>
@import '../../styles/responsive.scss';

$barClr: #b1b1b1;
$confirmedClr: #18d818;
$stoppedClr: #f55f31;
$haltClr: #f8bb36;
$stopNameClr: #22a8d1;

@keyframes blink {
  from {
    background-color: $barClr;
  }
  to {
    background-color: $confirmedClr;
  }
}

.train-schedule {
  max-height: 500px;
  width: 100%;

  overflow-y: auto;

  z-index: 5;

  background-color: #202020;
  padding: 0 0.25em;

  @include smallScreen() {
    font-size: 1.1em;
  }
}

.schedule-wrapper {
  margin-left: 2.5rem;
}

.progress-bar {
  position: absolute;
  z-index: 10;

  top: -1px;
  left: -17px;

  height: 100%;
  width: 3px;

  background-color: $barClr;
}

.stop-name {
  background: $stopNameClr;
  padding: 0.3em 0.5em;

  display: flex;
  align-items: center;
}

.stop-comment {
  background: forestgreen;
  padding: 0.3em 0.5em;

  max-width: 250px;
  overflow: hidden;
  white-space: nowrap;

  width: 2em;

  cursor: pointer;

  &:hover {
    text-overflow: ellipsis;
    width: 100%;
  }

  img {
    width: 1em;
  }

  span {
    font-size: 0.8em;
  }
}

ul.stop_list > li.stop {
  position: relative;

  display: flex;
  flex-direction: column;

  padding: 0 0.5em;

  &[class*='ph'] > .stop_info > .indicator {
    border-color: $stopNameClr;
  }

  &[class*='pt'] > .stop_info > .indicator {
    border-color: #818181;
  }

  &.begin {
    .stop_info > .indicator {
      border-color: lightgreen;
    }

    .stop_info > .progress-bar {
      background: lightgreen;
    }
  }

  &.end {
    .stop_info > .indicator {
      border-color: salmon;
    }

    .stop_info > .progress-bar {
      background: salmon;
    }
  }

  &.minor-stop-active {
    .stop_info > .progress-bar {
      animation: 0.5s ease-in-out alternate infinite blink;
    }

    .stop_line > .progress-bar {
      animation: 0.5s ease-in-out alternate infinite blink;
    }
  }

  &.last-confirmed {
    .stop_line > .progress-bar {
      animation: 0.5s ease-in-out alternate infinite blink;
    }
  }

  &.confirmed {
    .stop_info {
      > .progress-bar {
        background-color: $confirmedClr;
      }

      > .indicator {
        border-color: $confirmedClr;
      }
    }

    .stop_line > .progress-bar {
      background-color: $confirmedClr;
    }
  }

  &.stopped {
    .stop_info {
      > .indicator {
        border-color: $stoppedClr;
      }

      > .stop-bar {
        background: $stoppedClr;
      }
    }
  }

  .stop_line {
    font-size: 0.8em;
    color: #ccc;

    padding: 0.35em 0;

    position: relative;

    .line-segment {
      color: $barClr;
      font-weight: 500;
    }
  }

  .stop_info {
    display: flex;

    position: relative;
    text-align: center;

    flex-wrap: wrap;

    padding: 0.15em 0;
  }

  .stop-bar {
    position: absolute;
    top: 0;
    left: -17px;

    z-index: 10;

    width: 3px;
    height: 100%;
  }

  .distance {
    position: absolute;

    top: 50%;
    transform: translate(-100%, -50%);

    margin-left: -1.75rem;

    font-size: 0.75em;
    color: #d6d6d6;
  }

  .indicator {
    position: absolute;
    z-index: 11;

    top: 50%;
    left: -1rem;

    transform: translate(-47%, -50%);

    text-align: right;

    width: 15px;
    height: 15px;

    background: var(--clr-secondary);
    border: 3px solid $barClr;
    border-radius: 100%;
  }
}
</style>