<script setup lang="ts">
import { ref, onMounted, onActivated, computed } from 'vue';
import { useRouter, RouterLink } from 'vue-router';
import { useI18n } from 'vue-i18n';
import api from '../api';
import { formatMoney } from '../utils/localeDisplay';
import LocaleFlag from '../components/LocaleFlag.vue';
import { useAuthStore } from '../stores/auth';
import { useAppLocale } from '../composables/useAppLocale';
import { usePlayerProfile } from '../composables/usePlayerProfile';
import GoldSpinner from '../components/GoldSpinner.vue';
import { usePullToRefresh } from '../composables/usePullToRefresh';
import { parseCashbackApiData, sumCashbackAmount } from '../utils/cashback';

const { t, locale } = useI18n();
const router = useRouter();
const auth = useAuthStore();
const { locales, setLocale, initFromUser } = useAppLocale();
const { profileRaw, refreshProfile } = usePlayerProfile();

const profileLoading = ref(true);
const profileError = ref(false);
const rulesExpanded = ref(false);
const cashbackTotal = ref('0');

async function fetchCashbackTotal() {
  try {
    const { data } = await api.get('/player/cashbacks');
    cashbackTotal.value = sumCashbackAmount(parseCashbackApiData(data.data)).toString();
  } catch {
    try {
      const { data } = await api.get('/player/wallet/transactions/stats');
      const byType = data.data?.byType ?? [];
      let sum = 0;
      for (const g of byType) {
        if (['CASHBACK', 'CASHBACK_DEPOSIT'].includes(g.transactionType?.toUpperCase())) {
          sum += Math.abs(parseFloat(g.totalAmount ?? '0'));
        }
      }
      cashbackTotal.value = sum.toString();
    } catch {
      // ignore
    }
  }
}

async function fetchProfile() {
  profileLoading.value = true;
  profileError.value = false;
  try {
    await refreshProfile();
    initFromUser(profileRaw.value?.locale);
    void fetchCashbackTotal();
  } catch {
    profileError.value = true;
  } finally {
    profileLoading.value = false;
  }
}

async function refreshAll() {
  await fetchProfile();
}

const { pullDistance, spinning, progress } = usePullToRefresh({
  onRefresh: refreshAll,
});

onMounted(refreshAll);
onActivated(refreshAll);

const pullIndicatorStyle = () => ({
  height: `${pullDistance.value}px`,
  opacity: Math.min(pullDistance.value / 48, 1),
});

async function changeLocale(code: string) {
  await setLocale(code);
}

function logout() {
  auth.logout();
  router.push('/');
}

const balanceDisplay = computed(() =>
  formatMoney(profileRaw.value?.wallet?.availableBalance, locale.value),
);

const balanceAmountClass = computed(() => {
  const len = balanceDisplay.value.length;
  if (len <= 10) return 'balance-amount--xl';
  if (len <= 13) return 'balance-amount--lg';
  if (len <= 16) return 'balance-amount--md';
  if (len <= 19) return 'balance-amount--sm';
  return 'balance-amount--xs';
});
</script>

<template>
  <div class="wallet-page">
    <div class="pull-indicator" :style="pullIndicatorStyle()">
      <GoldSpinner v-if="spinning" :size="28" :progress="progress" :active="spinning" />
    </div>

    <div v-if="profileLoading" class="loading-state">
      <GoldSpinner :size="36" :active="true" />
    </div>

    <div v-else-if="profileError" class="error-state">
      <p class="error-text">{{ t('common.load_failed') }}</p>
      <button type="button" class="retry-btn" @click="fetchProfile">{{ t('common.retry') }}</button>
    </div>

    <template v-else>
      <div class="wallet-banner">
        <div class="card-overlay">
          <div class="bank-card-top">
            <div class="bank-card-top-left">
              <img src="/logo.png" alt="TheBet365" class="brand-logo" />
              <div class="bank-card-brand-text">
                <span class="brand-name">THEBET365</span>
                <span class="bank-card-type">MEMBER</span>
              </div>
            </div>
            <RouterLink to="/wallet/recharge" class="recharge-btn">
              <span class="recharge-icon">+</span>
              <span>{{ t('recharge.title') }}</span>
            </RouterLink>
          </div>

          <div class="bank-card-balance">
            <span class="bank-card-label">{{ t('wallet.balance') }}</span>
            <p class="bank-card-number balance-amount" :class="balanceAmountClass">{{ balanceDisplay }}</p>
          </div>

          <div class="bank-card-footer">
            <div class="bank-card-field">
              <span class="bank-card-label">{{ t('wallet.card_holder') }}</span>
              <span class="bank-card-holder">{{ profileRaw?.username }}</span>
            </div>
            <div class="bank-card-field bank-card-field--center">
              <span class="bank-card-label">{{ t('cashback.total_received') }}</span>
              <span class="bank-card-stat">{{ formatMoney(cashbackTotal, locale) }}</span>
            </div>
            <div class="bank-card-field bank-card-field--right">
              <span class="bank-card-label">{{ t('wallet.unsettled') }}</span>
              <span class="bank-card-stat">{{ formatMoney(profileRaw?.wallet?.frozenBalance, locale) }}</span>
            </div>
          </div>
        </div>
      </div>

      <section class="settings-group">
        <RouterLink to="/profile/edit" class="settings-cell">
          <span class="cell-main">
            <svg class="cell-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" aria-hidden="true">
              <circle cx="12" cy="8" r="3.5" />
              <path d="M5 20c0-3.5 3.1-6 7-6s7 2.5 7 6" />
            </svg>
            <span class="cell-label">{{ t('profile.edit') }}</span>
          </span>
          <span class="cell-chevron" aria-hidden="true">›</span>
        </RouterLink>

        <div class="rules-cell">
          <button
            type="button"
            class="settings-cell rules-toggle"
            :aria-expanded="rulesExpanded"
            @click="rulesExpanded = !rulesExpanded"
          >
            <span class="cell-main">
              <svg class="cell-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" aria-hidden="true">
                <path d="M7 4h10v16H7z" />
                <path d="M10 8h6M10 12h6M10 16h4" />
              </svg>
              <span class="cell-label">{{ t('profile.rules_title') }}</span>
            </span>
            <span class="cell-chevron" :class="{ open: rulesExpanded }" aria-hidden="true">›</span>
          </button>
          <div v-show="rulesExpanded" class="rules-body">
            <p>{{ t('profile.rules_p1') }}</p>
            <p>{{ t('profile.rules_p2') }}</p>
            <p>{{ t('profile.rules_p3') }}</p>
            <p>{{ t('profile.rules_p4') }}</p>
            <p>{{ t('profile.rules_p5') }}</p>
          </div>
        </div>

        <div class="settings-cell settings-cell--stack">
          <div class="cell-head">
            <svg class="cell-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" aria-hidden="true">
              <circle cx="12" cy="12" r="9" />
              <path d="M3 12h18M12 3c2.5 2.8 4 6 4 9s-1.5 6.2-4 9M12 3c-2.5 2.8-4 6-4 9s1.5 6.2 4 9" />
            </svg>
            <span class="cell-label">{{ t('profile.language') }}</span>
          </div>
          <div class="lang-segment" role="group" :aria-label="t('profile.language')">
            <button
              v-for="item in locales"
              :key="item.code"
              type="button"
              class="lang-opt"
              :class="{ active: locale === item.code }"
              @click="changeLocale(item.code)"
            >
              <LocaleFlag :locale="item.code" :size="14" />
              <span>{{ item.label }}</span>
            </button>
          </div>
        </div>
      </section>

      <button type="button" class="logout-btn" @click="logout">
        {{ t('auth.logout') }}
      </button>
    </template>
  </div>
</template>

<style scoped>
.pull-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: height 0.15s ease;
}

.wallet-page {
  padding: 6px 0 24px;
}

.loading-state,
.error-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 60vh;
}

.error-text {
  color: #6B7280;
  font-size: 14px;
  font-weight: 600;
}

.retry-btn {
  padding: 8px 24px;
  border-radius: 6px;
  border: 1px solid #003D6B;
  background: transparent;
  color: #005B9F;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

.wallet-banner {
  position: relative;
  width: 100%;
  margin-bottom: 10px;
  aspect-ratio: 1.75 / 1;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 61, 107, 0.18);
  background: linear-gradient(135deg, #003D6B 0%, #005B9F 52%, #002847 100%);
}

.card-overlay {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 10px 14px;
  line-height: 1.3;
}

.bank-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.bank-card-top-left {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.brand-logo {
  width: 18px;
  height: 18px;
  object-fit: contain;
}

.bank-card-brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-name {
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.14em;
}

.bank-card-type {
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.6);
  font-style: italic;
}

.bank-card-label {
  display: block;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
}

.recharge-btn {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 5px 10px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  text-decoration: none;
}

.recharge-icon {
  font-size: 12px;
  font-weight: 700;
}

.bank-card-balance {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 0;
  padding: 1px 0;
  gap: 3px;
}

.bank-card-number {
  margin: 0;
  font-family: 'SF Mono', 'Consolas', 'Courier New', monospace;
  font-weight: 700;
  color: #fff;
  line-height: 1.1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.balance-amount--xl { font-size: clamp(22px, 5.6vw, 27px); }
.balance-amount--lg { font-size: clamp(19px, 5vw, 24px); }
.balance-amount--md { font-size: clamp(16px, 4.4vw, 20px); }
.balance-amount--sm { font-size: clamp(14px, 3.8vw, 17px); }
.balance-amount--xs { font-size: clamp(12px, 3.2vw, 14px); }

.bank-card-footer {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  padding-top: 6px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.bank-card-field {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.bank-card-field--center { text-align: center; }
.bank-card-field--right { text-align: right; }

.bank-card-holder,
.bank-card-stat {
  font-size: 12px;
  font-weight: 600;
  color: #fff;
}

.bank-card-holder {
  font-weight: 700;
  text-transform: uppercase;
  word-break: break-all;
}

.settings-group {
  background: #fff;
  border: 1px solid #E5E7EB;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 10px;
}

.settings-cell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  min-height: 42px;
  padding: 0 14px;
  background: none;
  color: #1A1A2E;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid #E5E7EB;
}

.settings-cell:last-child {
  border-bottom: none;
}

.settings-cell--stack {
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  padding: 10px 14px 12px;
  min-height: auto;
}

.cell-main,
.cell-head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.cell-icon {
  width: 18px;
  height: 18px;
  color: #6B7280;
}

.cell-chevron {
  color: #6B7280;
  font-size: 20px;
  font-weight: 300;
  transition: transform 0.15s ease;
}

.cell-chevron.open {
  transform: rotate(90deg);
}

.rules-toggle {
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.rules-cell .rules-body {
  padding: 0 14px 12px;
  border-bottom: 1px solid #E5E7EB;
  font-size: 12px;
  line-height: 1.55;
  color: #6B7280;
}

.rules-body p {
  margin: 0 0 8px;
}

.lang-segment {
  display: flex;
  gap: 6px;
}

.lang-opt {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-height: 30px;
  border-radius: 6px;
  border: 1px solid #E5E7EB;
  background: #fff;
  color: #6B7280;
  font-size: 12px;
  font-weight: 700;
}

.lang-opt.active {
  border-color: #003D6B;
  color: #003D6B;
  background: rgba(0, 61, 107, 0.06);
}

.logout-btn {
  width: 100%;
  min-height: 40px;
  border-radius: 8px;
  border: 1px solid #DC2626;
  background: #fff;
  color: #DC2626;
  font-size: 13px;
  font-weight: 700;
}
</style>
