import { defineComponent, ref, computed, openBlock, createElementBlock, normalizeClass, unref, createElementVNode, renderSlot, toDisplayString, createVNode, withCtx, createTextVNode, createCommentVNode, createSlots, normalizeProps, guardReactiveProps, Fragment, renderList, createBlock } from 'vue';
import dayjs from 'dayjs';
import { ElButtonGroup, ElButton } from '../../button/index2.mjs';
import '../../../hooks/index2.mjs';
import '../../../utils/index2.mjs';
import '../../../constants/index2.mjs';
import DateTable from './date-table4.mjs';
import { calendarProps, calendarEmits } from './calendar3.mjs';
import _export_sfc from '../../../_virtual/plugin-vue_export-helper.mjs';
import { useNamespace } from '../../../hooks/use-namespace/index2.mjs';
import { useLocale } from '../../../hooks/use-locale/index2.mjs';
import { INPUT_EVENT, UPDATE_MODEL_EVENT } from '../../../constants/event2.mjs';
import { debugWarn } from '../../../utils/error2.mjs';

const __default__ = {
  name: "ElCalendar"
};
const _sfc_main = /* @__PURE__ */ defineComponent({
  ...__default__,
  props: calendarProps,
  emits: calendarEmits,
  setup(__props, { expose, emit }) {
    const props = __props;
    const COMPONENT_NAME = "ElCalendar";
    const ns = useNamespace("calendar");
    const { t, lang } = useLocale();
    const selectedDay = ref();
    const now = dayjs().locale(lang.value);
    const realSelectedDay = computed({
      get() {
        if (!props.modelValue)
          return selectedDay.value;
        return date.value;
      },
      set(val) {
        if (!val)
          return;
        selectedDay.value = val;
        const result = val.toDate();
        emit(INPUT_EVENT, result);
        emit(UPDATE_MODEL_EVENT, result);
      }
    });
    const validatedRange = computed(() => {
      if (!props.range)
        return [];
      const rangeArrDayjs = props.range.map((_) => dayjs(_).locale(lang.value));
      const [startDayjs, endDayjs] = rangeArrDayjs;
      if (startDayjs.isAfter(endDayjs)) {
        debugWarn(COMPONENT_NAME, "end time should be greater than start time");
        return [];
      }
      if (startDayjs.isSame(endDayjs, "month")) {
        return calculateValidatedDateRange(startDayjs, endDayjs);
      } else {
        if (startDayjs.add(1, "month").month() !== endDayjs.month()) {
          debugWarn(COMPONENT_NAME, "start time and end time interval must not exceed two months");
          return [];
        }
        return calculateValidatedDateRange(startDayjs, endDayjs);
      }
    });
    const date = computed(() => {
      if (!props.modelValue) {
        if (realSelectedDay.value) {
          return realSelectedDay.value;
        } else if (validatedRange.value.length) {
          return validatedRange.value[0][0];
        }
        return now;
      } else {
        return dayjs(props.modelValue).locale(lang.value);
      }
    });
    const prevMonthDayjs = computed(() => date.value.subtract(1, "month").date(1));
    const nextMonthDayjs = computed(() => date.value.add(1, "month").date(1));
    const prevYearDayjs = computed(() => date.value.subtract(1, "year").date(1));
    const nextYearDayjs = computed(() => date.value.add(1, "year").date(1));
    const i18nDate = computed(() => {
      const pickedMonth = `el.datepicker.month${date.value.format("M")}`;
      return `${date.value.year()} ${t("el.datepicker.year")} ${t(pickedMonth)}`;
    });
    const calculateValidatedDateRange = (startDayjs, endDayjs) => {
      const firstDay = startDayjs.startOf("week");
      const lastDay = endDayjs.endOf("week");
      const firstMonth = firstDay.get("month");
      const lastMonth = lastDay.get("month");
      if (firstMonth === lastMonth) {
        return [[firstDay, lastDay]];
      } else if (firstMonth + 1 === lastMonth) {
        const firstMonthLastDay = firstDay.endOf("month");
        const lastMonthFirstDay = lastDay.startOf("month");
        const isSameWeek = firstMonthLastDay.isSame(lastMonthFirstDay, "week");
        const lastMonthStartDay = isSameWeek ? lastMonthFirstDay.add(1, "week") : lastMonthFirstDay;
        return [
          [firstDay, firstMonthLastDay],
          [lastMonthStartDay.startOf("week"), lastDay]
        ];
      } else if (firstMonth + 2 === lastMonth || (firstMonth + 1) % 11 === lastMonth) {
        const firstMonthLastDay = firstDay.endOf("month");
        const secondMonthFirstDay = firstDay.add(1, "month").startOf("month");
        const secondMonthStartDay = firstMonthLastDay.isSame(secondMonthFirstDay, "week") ? secondMonthFirstDay.add(1, "week") : secondMonthFirstDay;
        const secondMonthLastDay = secondMonthStartDay.endOf("month");
        const lastMonthFirstDay = lastDay.startOf("month");
        const lastMonthStartDay = secondMonthLastDay.isSame(lastMonthFirstDay, "week") ? lastMonthFirstDay.add(1, "week") : lastMonthFirstDay;
        return [
          [firstDay, firstMonthLastDay],
          [secondMonthStartDay.startOf("week"), secondMonthLastDay],
          [lastMonthStartDay.startOf("week"), lastDay]
        ];
      } else {
        debugWarn(COMPONENT_NAME, "start time and end time interval must not exceed two months");
        return [];
      }
    };
    const pickDay = (day) => {
      realSelectedDay.value = day;
    };
    const selectDate = (type) => {
      let day;
      if (type === "prev-month") {
        day = prevMonthDayjs.value;
      } else if (type === "next-month") {
        day = nextMonthDayjs.value;
      } else if (type === "prev-year") {
        day = prevYearDayjs.value;
      } else if (type === "next-year") {
        day = nextYearDayjs.value;
      } else {
        day = now;
      }
      if (day.isSame(date.value, "day"))
        return;
      pickDay(day);
    };
    expose({
      selectedDay: realSelectedDay,
      pickDay,
      selectDate,
      calculateValidatedDateRange
    });
    return (_ctx, _cache) => {
      return openBlock(), createElementBlock("div", {
        class: normalizeClass(unref(ns).b())
      }, [
        createElementVNode("div", {
          class: normalizeClass(unref(ns).e("header"))
        }, [
          renderSlot(_ctx.$slots, "header", { date: unref(i18nDate) }, () => [
            createElementVNode("div", {
              class: normalizeClass(unref(ns).e("title"))
            }, toDisplayString(unref(i18nDate)), 3),
            unref(validatedRange).length === 0 ? (openBlock(), createElementBlock("div", {
              key: 0,
              class: normalizeClass(unref(ns).e("button-group"))
            }, [
              createVNode(unref(ElButtonGroup), null, {
                default: withCtx(() => [
                  createVNode(unref(ElButton), {
                    size: "small",
                    onClick: _cache[0] || (_cache[0] = ($event) => selectDate("prev-month"))
                  }, {
                    default: withCtx(() => [
                      createTextVNode(toDisplayString(unref(t)("el.datepicker.prevMonth")), 1)
                    ]),
                    _: 1
                  }),
                  createVNode(unref(ElButton), {
                    size: "small",
                    onClick: _cache[1] || (_cache[1] = ($event) => selectDate("today"))
                  }, {
                    default: withCtx(() => [
                      createTextVNode(toDisplayString(unref(t)("el.datepicker.today")), 1)
                    ]),
                    _: 1
                  }),
                  createVNode(unref(ElButton), {
                    size: "small",
                    onClick: _cache[2] || (_cache[2] = ($event) => selectDate("next-month"))
                  }, {
                    default: withCtx(() => [
                      createTextVNode(toDisplayString(unref(t)("el.datepicker.nextMonth")), 1)
                    ]),
                    _: 1
                  })
                ]),
                _: 1
              })
            ], 2)) : createCommentVNode("v-if", true)
          ])
        ], 2),
        unref(validatedRange).length === 0 ? (openBlock(), createElementBlock("div", {
          key: 0,
          class: normalizeClass(unref(ns).e("body"))
        }, [
          createVNode(DateTable, {
            date: unref(date),
            "selected-day": unref(realSelectedDay),
            onPick: pickDay
          }, createSlots({ _: 2 }, [
            _ctx.$slots.dateCell ? {
              name: "dateCell",
              fn: withCtx((data) => [
                renderSlot(_ctx.$slots, "dateCell", normalizeProps(guardReactiveProps(data)))
              ])
            } : void 0
          ]), 1032, ["date", "selected-day"])
        ], 2)) : (openBlock(), createElementBlock("div", {
          key: 1,
          class: normalizeClass(unref(ns).e("body"))
        }, [
          (openBlock(true), createElementBlock(Fragment, null, renderList(unref(validatedRange), (range_, index) => {
            return openBlock(), createBlock(DateTable, {
              key: index,
              date: range_[0],
              "selected-day": unref(realSelectedDay),
              range: range_,
              "hide-header": index !== 0,
              onPick: pickDay
            }, createSlots({ _: 2 }, [
              _ctx.$slots.dateCell ? {
                name: "dateCell",
                fn: withCtx((data) => [
                  renderSlot(_ctx.$slots, "dateCell", normalizeProps(guardReactiveProps(data)))
                ])
              } : void 0
            ]), 1032, ["date", "selected-day", "range", "hide-header"]);
          }), 128))
        ], 2))
      ], 2);
    };
  }
});
var Calendar = /* @__PURE__ */ _export_sfc(_sfc_main, [["__file", "/home/runner/work/element-plus/element-plus/packages/components/calendar/src/calendar.vue"]]);

export { Calendar as default };
//# sourceMappingURL=calendar4.mjs.map
