<template>
  <div class="relative max-lg:h-dvh flex flex-row-reverse">
    <div class="lg:bg-gradient-to-l bg-gradient-to-b from-gray-900 to-transparent w-full lg:w-1/2 h-[35dvh] lg:h-dvh absolute left-0 max-lg:bottom-0 lg:top-0 z-10"></div>
    <div class="bg-[url('/assets/login/login-bg.png')] opacity-20 w-full lg:w-1/2 h-[35dvh] lg:h-dvh absolute left-0 max-lg:bottom-0 lg:top-0 bg-no-repeat bg-cover bg-center grayscale"></div>
    <div class="bg-gray-900 z-20 w-full lg:w-1/2 h-[65dvh] lg:h-dvh relative"></div>
    <div class="absolute top-8 right-0 py-[18px] pr-[15px] pl-32 bg-gradient-to-r from-transparent to-cyan-900 z-20">
      <h2 class="text-white">CHARACTER SELECTION</h2>
    </div>
    <div class="ui-wrapper h-dvh w-[calc(100%_-_80px)] sm:w-[calc(100%_-_160px)] absolute flex flex-col justify-center items-center gap-14 px-10 sm:px-20 z-30">
      <div class="filler"></div>
      <div class="w-2/3 max-w-[860px]" v-if="!isLoading">
        <div class="mb-5 flex flex-col gap-1">
          <h1 class="text-white font-bold">SELECT CHARACTER TO PLAY</h1>
          <p class="m-0">Maximum of 4 characters can be created per player</p>
        </div>
        <div class="flex w-full h-[400px] border border-solid border-gray-500 rounded-md rounded-tl-none bg-gray">
          <div class="w-1/3 h-full bg-[url('/assets/ui-texture.png')] bg-no-repeat bg-cover bg-center border-0 border-r border-solid border-gray-500 rounded-bl-md relative">
            <div class="absolute right-full -top-px flex gap-1 flex-col">
              <div
                v-for="character in characters"
                :key="character.id"
                class="character relative rounded-l border border-solid border-gray-500 w-9 h-[50px] bg-[url('/assets/ui-texture.png')] after:absolute after:w-full after:h-px after:bg-gray-500"
                :class="{ active: selectedCharacterId == character.id }"
              >
                <img src="/assets/avatar/default/head.png" class="w-9 h-9 object-contain absolute top-1/2 -translate-y-1/2" alt="Player head" />
                <input class="h-full w-full absolute m-0 z-10 hover:cursor-pointer focus-visible:outline-offset-0" type="radio" name="character" :value="character.id" v-model="selectedCharacterId" />
              </div>
              <div class="character relative rounded-l border border-solid border-gray-500 w-9 h-[50px] bg-[url('/assets/ui-texture.png')]" :class="{ active: characters.length == 0 }" v-if="characters.length < 4">
                <button class="p-0 h-full w-full flex flex-col justify-between focus-visible:outline-offset-0" @click="isCreateNewCharacterModalOpen = true">
                  <img class="w-6 h-6 object-contain absolute top-1/2 left-1/2 -translate-y-1/2 -translate-x-1/2" draggable="false" src="/assets/icons/plus-icon.svg" />
                </button>
              </div>
            </div>
            <div class="py-6 px-8 h-[calc(100%_-_48px)] flex flex-col items-center gap-6 justify-center" v-if="selectedCharacterId">
              <input class="input-field w-[158px]" type="text" name="name" :placeholder="characters.find((c) => c.id == selectedCharacterId)?.name" />
              <div class="flex flex-col gap-4 items-center">
                <div class="flex flex-col gap-3">
                  <div class="bg-[url('/assets/ui-elements/character-select-ui-shape.svg')] w-[190px] h-52 bg-no-repeat bg-center flex items-center justify-between">
                    <button class="ml-6 w-4 h-8 p-0">
                      <img src="/assets/icons/triangle-icon.svg" class="w-3 h-3.5 m-auto" alt="Arrow left" />
                    </button>
                    <img class="w-12 object-contain mb-3.5" src="/assets/avatar/default/0.png" alt="Player avatar" />
                    <button class="mr-6 w-4 h-8 p-0">
                      <img src="/assets/icons/triangle-icon.svg" class="w-3 h-3.5 -scale-x-100" alt="Arrow right" />
                    </button>
                  </div>
                  <!--                  <div class="flex justify-between w-[190px]">-->
                  <!--                    &lt;!&ndash; TODO: replace with color swatches &ndash;&gt;-->
                  <!--                    <button v-for="n in 9" class="w-4 h-4 rounded-sm bg-white"></button>-->
                  <!--                  </div>-->
                </div>
                <!-- TODO: update gender on (selected) character -->
                <div class="flex justify-between w-[190px]">
                  <button class="btn-empty flex gap-2" :class="{ selected: characters.find((c) => c.id == selectedCharacterId)?.characterType?.gender === 'MALE' }">
                    <img src="/assets/icons/male-icon.svg" class="w-4 h-4 m-auto" alt="Male symbol" />
                    <span class="text-white">Male</span>
                  </button>
                  <button class="btn-empty flex gap-2" :class="{ selected: characters.find((c) => c.id == selectedCharacterId)?.characterType?.gender === 'FEMALE' }">
                    <img src="/assets/icons/male-icon.svg" class="w-4 h-4 m-auto" alt="Male symbol" />
                    <span class="text-white">Female</span>
                  </button>
                </div>
              </div>
            </div>
          </div>
          <div class="w-2/3 h-full bg-[url('/assets/ui-texture.png')] bg-no-repeat bg-cover bg-center rounded-r-md">
            <div class="py-6 px-8 h-[calc(100%_-_48px)] flex flex-col items-center gap-10" v-if="selectedCharacterId">
              <div class="flex flex-col gap-3 w-full">
                <span class="text-sm">Hairstyle</span>
                <div class="flex gap-2 flex-wrap max-h-20 overflow-y-auto scrollbar">
                  <div
                    class="hair-deselect relative flex justify-center items-center bg-gray border border-solid border-gray-500 w-[18px] h-[18px] p-2 rounded-sm hover:bg-gray-500 hover:border-gray-400 focus-visible:outline-none focus-visible:border-white focus-visible:bg-cyan has-[:checked]:bg-cyan has-[:checked]:border-transparent"
                  >
                    <img src="/assets/icons/x-button-gray.svg" class="w-4 h-4" alt="Empty button" />
                    <input type="radio" name="hair" :value="null" v-model="selectedHairId" class="h-full w-full absolute left-0 top-0 m-0 z-10 hover:cursor-pointer focus-visible:outline-offset-0 focus-visible:outline-white" />
                  </div>
                  <!-- TODO #255: make radio button so we can set a value, do the same with swatches -->
                  <div
                    v-for="hair in characterHairs"
                    class="relative flex justify-center items-center bg-gray border border-solid border-gray-500 w-[18px] h-[18px] p-2 rounded-sm hover:bg-gray-500 hover:border-gray-400 focus-visible:outline-none focus-visible:border-gray-300 focus-visible:bg-gray-500 has-[:checked]:bg-cyan has-[:checked]:border-transparent"
                  >
                    <img class="w-4 h-4" :src="config.server_endpoint + '/assets/sprites/' + hair.spriteId + '/front.png'" alt="Hair sprite" />
                    <input type="radio" name="hair" :value="hair.id" v-model="selectedHairId" class="h-full w-full absolute left-0 top-0 m-0 z-10 hover:cursor-pointer focus-visible:outline-offset-0 focus-visible:outline-white" />
                  </div>
                </div>
              </div>
              <div class="flex flex-col gap-3 w-full">
                <span class="text-sm">Hair color</span>
                <div class="flex gap-2 flex-wrap">
                  <!-- TODO: replace with hair colors -->
                  <input type="radio" name="hair-color" v-for="n in 10" class="bg-white w-6 h-6 m-0 rounded-sm hover:cursor-pointer" />
                </div>
              </div>
            </div>
          </div>
        </div>
      </div>
      <div v-else>
        <img class="w-20 invert-80" src="/assets/icons/loading-icon1.svg" />
      </div>

      <div class="button-wrapper flex self-center justify-end gap-4 max-w-[860px] w-full" v-if="!isLoading">
        <button class="btn-empty min-w-48" @click.stop="gameStore.disconnectSocket()">Back</button>
        <button class="btn-cyan min-w-48 disabled:bg-cyan-800 disabled:cursor-not-allowed" :disabled="!selectedCharacterId" @click="loginWithCharacter()">Play now</button>
      </div>
    </div>
  </div>

  <!-- CREATE CHARACTER MODAL -->
  <Modal :isModalOpen="isCreateNewCharacterModalOpen" @modal:close="isCreateNewCharacterModalOpen = false" :modal-width="430" :modal-height="275">
    <template #modalHeader>
      <h3 class="m-0 font-medium text-white">Create your character</h3>
    </template>

    <template #modalBody>
      <div class="p-4 h-[calc(100%_-_32px)]">
        <form method="post" @submit.prevent="createCharacter" class="h-full flex flex-col justify-between">
          <div class="form-field-full">
            <label for="name" class="text-white">Nickname</label>
            <input class="input-field" v-model="newCharacterName" name="name" id="name" placeholder="Enter a nickname..." />
          </div>
          <div class="grid grid-flow-col justify-stretch gap-4">
            <button type="button" class="btn-empty py-1.5 px-4 inline-block" @click.prevent="isCreateNewCharacterModalOpen = false">Cancel</button>
            <button class="btn-cyan py-1.5 px-4 inline-block" type="submit">Create</button>
          </div>
        </form>
      </div>
    </template>
  </Modal>

  <!-- DELETE CHARACTER MODAL -->
  <ConfirmationModal v-if="deletingCharacter != null" :confirm-function="deleteCharacter.bind(this, deletingCharacter.id)" :cancel-function="(() => (deletingCharacter = null)).bind(this)" confirm-button-text="Delete">
    <template #modalHeader>
      <h3 class="m-0 font-medium text-white">Delete character?</h3>
    </template>
    <template #modalBody>
      <p class="mt-0 mb-5 text-white text-lg">
        Do you want to permanently delete <span class="font-extrabold text-white">{{ deletingCharacter.name }}</span
        >?
      </p>
    </template>
  </ConfirmationModal>
</template>

<script setup lang="ts">
import config from '@/config'
import { useGameStore } from '@/stores/gameStore'
import { onBeforeUnmount, ref, watch } from 'vue'
import Modal from '@/components/utilities/Modal.vue'
import { type Character as CharacterT, type CharacterHair } from '@/types'
import ConfirmationModal from '@/components/utilities/ConfirmationModal.vue'

const gameStore = useGameStore()
const isLoading = ref<boolean>(true)
const characters = ref<CharacterT[]>([])
const deletingCharacter = ref(null as CharacterT | null)
const selectedCharacterId = ref<number | null>(null)
const isCreateNewCharacterModalOpen = ref<boolean>(false)
const newCharacterName = ref<string>('')
const characterHairs = ref<CharacterHair[]>([])
const selectedHairId = ref<number | null>(null)

// Fetch characters
setTimeout(() => {
  gameStore.connection?.emit('character:list')
}, 750)

gameStore.connection?.on('character:list', (data: any) => {
  characters.value = data
  isLoading.value = false

  // Fetch hairs
  // @TODO: This is hacky, we should have a better way to do this
  gameStore.connection?.emit('character:hair:list', {}, (data: CharacterHair[]) => {
    characterHairs.value = data
  })
})

// Select character logics
function loginWithCharacter() {
  if (!selectedCharacterId.value) return

  gameStore.connection?.emit('character:connect', {
    characterId: selectedCharacterId.value,
    characterHairId: selectedHairId.value
  })
  gameStore.connection?.on('character:connect', (data: CharacterT) => gameStore.setCharacter(data))
}

// Delete character logics
function deleteCharacter(characterId: number) {
  if (!characterId) return
  deletingCharacter.value = null
  gameStore.connection?.emit('character:delete', { characterId: characterId })
}

// Create character logics
function createCharacter() {
  gameStore.connection?.on('character:create:success', (data: CharacterT) => {
    gameStore.setCharacter(data)
    isCreateNewCharacterModalOpen.value = false
  })
  gameStore.connection?.emit('character:create', { name: newCharacterName.value })
}

// Watch changes for selected character and update hairs
watch(selectedCharacterId, (characterId) => {
  if (!characterId) return
  selectedHairId.value = characters.value.find((c) => c.id == characterId)?.characterHairId ?? null
})

onBeforeUnmount(() => {
  gameStore.connection?.off('character:list')
  gameStore.connection?.off('character:connect')
  gameStore.connection?.off('character:create:success')
})
</script>