<template>
  <MenuRow row-title="Elementary Cellular Automata">
    <form>
      <div class="form-field">
        <label
          >Initial state presets
          <br />
          <select
            name="initial1dStates"
            value="initial1dStates"
            @input="updateInitial1dState"
          >
            <option
              v-for="state in initial1dStates"
              :key="'preset1d' + state.id"
              :value="state.id"
            >
              {{ state.name }}
            </option>
          </select>
        </label>
      </div>
      <div class="form-field">
        <label>Rules</label>
      </div>
      <div class="form-field">
        <label
          >Rules presets
          <br />
          <select name="rules1d" value="rules" @input="update1dRules">
            <option
              v-for="(rule, name) in presetRules"
              :key="'rule1d' + name"
              :value="name"
            >
              {{ name }}
            </option>
          </select>
        </label>
      </div>
      <div class="form-field">
        <a style="cursor: pointer" @click="copy1dRules">copy rules</a>
      </div>
      <div
        v-for="(rule, name) in rules"
        :key="'rule1d' + name"
        class="form-field"
      >
        <label
          >{{ name }}
          <input
            :value="rule"
            type="checkbox"
            :name="name"
            :checked="rule"
            @input="update1dSingleRule"
          />
        </label>
      </div>
    </form>
    <div class="form-field">
      <input type="button" name="start" value="start" @click="draw1d" />
      <input
        type="button"
        name="reset"
        class="reset"
        value="reset"
        @click="reset()"
      />
    </div>
  </MenuRow>
</template>

<script>
import { mapGetters } from "vuex";
import MenuRow from "./MenuRow.vue";
export default {
  name: "MenuElementaryCA",
  components: {
    MenuRow,
  },
  data() {
    // TODO: Why not a getter in the store?
    return {
      presetRules: {
        "rule 73": {
          100: 0,
          101: 0,
          110: 1,
          111: 0,
          "011": 1,
          "010": 0,
          "001": 0,
          "000": 1,
        },
        "rule 86": {
          100: 1,
          101: 0,
          110: 0,
          111: 1,
          "011": 0,
          "010": 1,
          "001": 0,
          "000": 1,
        },
        "rule 90": {
          100: 1,
          101: 0,
          110: 1,
          111: 0,
          "011": 0,
          "010": 0,
          "001": 1,
          "000": 0,
        },
        "rule 45?": {
          100: 0,
          101: 0,
          110: 1,
          111: 0,
          "011": 1,
          "010": 0,
          "001": 1,
          "000": 1,
        },
        "rule 54?": {
          100: 1,
          101: 0,
          110: 1,
          111: 1,
          "011": 0,
          "010": 1,
          "001": 1,
          "000": 0,
        },
        "unknown rule": {
          100: 0,
          101: 0,
          110: 0,
          111: 1,
          "011": 0,
          "010": 0,
          "001": 1,
          "000": 1,
        },
      },
      initial1dStates: [
        {
          id: "onecell",
          name: "One cell at center",
          description: "State with a single cell in the middle",
        },
        {
          id: "random",
          name: "Random cell",
          description: "State populated with random cells",
        },
      ],
    };
  },
  computed: {
    ...mapGetters({
      initial1dState: "getInitial1dState",
      rules: "get1dRules",
    }),
    rules1dFileName() {
      return (
        Object.keys(this.rules)
          .map((index) => {
            return this.rules[index];
          })
          .join("_") + ".json"
      );
    },
  },
  methods: {
    copy1dRules() {
      const rules = JSON.stringify(this.rules);
      navigator.clipboard.writeText(rules);
    },
    isCurrentPreset(event) {
      const elem = event.target;
      return this.initialState === elem.value;
    },
    update1dSingleRule(event) {
      const elem = event.target;
      const value = elem.checked ? 1 : 0;
      const data = { rule: elem.name, value: value };
      this.$store.commit("update1dSingleRule", data);
    },
    update1dRules(event) {
      const elem = event.target;
      const name = elem.value;
      const rules = this.presetRules[name];
      Object.keys(rules).map((index) => {
        const data = { rule: index, value: rules[index] };
        this.$store.commit("update1dSingleRule", data);
      });
    },
    updateInitial1dState(event) {
      const elem = event.target;
      this.$store.commit("setInitial1dState", elem.value);
    },
    draw1d() {
      this.$root.$store.state.drawing = 1;
      this.$root.$emit("draw1d");
    },
    reset() {
      this.$root.$emit("reset");
    },
  },
};
</script>
<style>
.menu-row a {
  color: white;
  font-weight: bold;
  text-decoration: none;
  font-size: small;
}
</style>
