<script setup>
import DragGrid from "../../src/DragGrid.vue";
</script>

<template>
  <div>
    <div class="row">
      <div>
        <label>
          Lesson 1 has length: {{ lesson1Length }}
          <input
            type="range"
            v-model="lesson1Length"
            min="1"
            max="5"
            step="1"
          />
        </label>
        <label for="lesson1">Text of Lesson 1:</label>
        <input id="lesson1" type="text" v-model="lessonData.lesson1" />
      </div>
      <div>
        <label>
          Lesson grid has width: {{ lesson1Cols }}
          <input type="range" v-model="lesson1Cols" min="2" max="5" step="1" />
        </label>
        <label for="lesson2">Text of Lesson 2:</label>
        <input id="lesson2" type="text" v-model="lessonData.lesson2" />
      </div>
      <div>
        <label>
          Lesson grid has height: {{ lesson1Rows }}
          <input type="range" v-model="lesson1Rows" min="6" max="10" step="1" />
        </label>

        <label for="lesson3">Texts of Lesson 3:</label>
        <input id="lesson3" type="text" v-model="lessonData.lesson3.inside" />
        <input type="text" v-model="lessonData.lesson3.outside" />
      </div>
    </div>

    <div class="row">
      <drag-grid
        :value="lessons1"
        :cols="parseInt(lesson1Cols)"
        :rows="parseInt(lesson1Rows)"
        class="bordered"
        context="lesson"
        grid-id="lesson-plan"
        @itemChanged="handleLessonMoved"
      >
        <template #item="item">
          <div class="container">{{ item }}</div>
        </template>
      </drag-grid>
      <drag-grid
        :value="lessons1"
        :cols="1"
        :rows="10"
        context="lesson"
        grid-id="lesson-storage"
        @itemChanged="handleLessonDropInContainer"
        no-highlight
        class="bordered"
      >
        <template #item="item">
          <div class="container">{{ item }}</div>
        </template>
      </drag-grid>
    </div>
  </div>
</template>

<script>
export default {
  name: "Example4Lessons",
  data() {
    return {
      lesson1Length: 1,
      lesson1Cols: 4,
      lesson1Rows: 6,
      lesson1X: 1,
      lesson1Y: 1,
      lesson2X: 2,
      lesson2Y: 1,
      lesson3X: -1,
      lesson3Y: -1,
      lesson3inPlan: false,
      lessonData: {
        lesson1: "Nothing",
        lesson2: "Hallo",
        lesson3: {
          inside: "This is lesson 3 inside the plan",
          outside: "This is lesson3 outside of the plan",
        },
      },
    };
  },
  methods: {
    logInput(input) {
      console.log("New movement detected:", input);
    },
    handleLessonMoved(lesson) {
      this.logInput(lesson);
      switch (lesson.key) {
        case "lesson1":
          this.lesson1X = lesson.x;
          this.lesson1Y = lesson.y;
          break;
        case "lesson2":
          this.lesson2X = lesson.x;
          this.lesson2Y = lesson.y;
          break;
        case "lesson3":
          this.lesson3X = lesson.x;
          this.lesson3Y = lesson.y;
          this.lesson3inPlan = true;
          break;
        default:
          console.error("Something is wrong here!");
      }
    },
    handleLessonDropInContainer(lesson) {
      if (lesson.key === "lesson3") this.lesson3inPlan = false;
    },
  },
  computed: {
    lessons1() {
      return [
        {
          x: (grid) => {
            return grid.gridId === "lesson-plan" ? this.lesson1X : 0;
          },
          y: (grid) => {
            return grid.gridId === "lesson-plan" ? this.lesson1Y : 0;
          },
          w: 1,
          h: this.lesson1Length,
          key: "lesson1",
          data: {
            text: this.lessonData.lesson1,
          },
        },
        {
          x: (grid) => {
            return grid.gridId === "lesson-plan" ? this.lesson2X : 0;
          },
          y: (grid) => {
            return grid.gridId === "lesson-plan" ? this.lesson2Y : 0;
          },
          w: 1,
          h: parseInt(this.lesson1Length) + 1,
          key: "lesson2",
          data: {
            text: this.lessonData.lesson2,
          },
        },
        {
          x: (grid) => {
            if (this.lesson3inPlan) {
              return grid.gridId === "lesson-plan" ? this.lesson3X : -1;
            }
            return grid.gridId === "lesson-plan" ? -1 : 0;
          },
          y: (grid) => {
            if (this.lesson3inPlan) {
              return grid.gridId === "lesson-plan" ? this.lesson3Y : -1;
            }
            return grid.gridId === "lesson-plan" ? -1 : 0;
          },
          w: 1,
          h: parseInt(this.lesson1Length) + 1,
          key: "lesson3",
          data: (grid) => {
            return {
              text:
                grid.gridId === "lesson-storage"
                  ? this.lessonData.lesson3.outside
                  : this.lessonData.lesson3.inside,
            };
          },
        },
      ];
    },
  },
};
</script>

<style scoped>
.row {
  display: flex;
  justify-content: space-between;
}

.row > div:not(.bordered) {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.bordered {
  border: 2px solid grey;
}

.container {
  background: lightcoral;
  width: 100%;
  height: 100%;
}
</style>