<template>
  <Teleport to="body">
    <div v-if="state !== 'idle'" class="signup-flow-overlay">
      <div class="signup-flow-card">
        <div class="signup-flow-step">{{ stepLabel }}</div>

        <template v-if="isProgress">
          <h2 class="signup-flow-heading">{{ progressHeading }}</h2>
          <p class="signup-flow-body">
            Please don't close this window. This usually takes a few seconds.
          </p>
        </template>

        <template v-if="state === 'success'">
          <h2 class="signup-flow-heading">Welcome to Ghost Guild!</h2>
          <DashedBox :hoverable="false">
            <div class="section-label" style="margin-bottom: 12px">
              Membership Details
            </div>
            <dl class="details-list">
              <div class="details-row">
                <dt>Name</dt><dd>{{ summary?.name }}</dd>
              </div>
              <div class="details-row">
                <dt>Email</dt><dd>{{ summary?.email }}</dd>
              </div>
              <div class="details-row">
                <dt>Circle</dt><dd class="capitalize">{{ summary?.circle }}</dd>
              </div>
              <div class="details-row">
                <dt>Contribution</dt><dd>{{ summary?.contribution }}</dd>
              </div>
            </dl>
          </DashedBox>
          <p class="signup-flow-body" style="margin-top: 16px">
            We've sent a confirmation email to {{ summary?.email }}. Redirecting
            you to your dashboard...
          </p>
          <div class="button-row" style="margin-top: 20px">
            <NuxtLink :to="dashboardHref" class="btn btn-primary">
              Go to Dashboard Now
            </NuxtLink>
          </div>
        </template>

        <template v-if="state === 'error'">
          <h2 class="signup-flow-heading">We couldn't complete your signup</h2>
          <div v-if="errorMessage" class="error-box">
            {{ errorMessage }}
          </div>
          <div class="button-row" style="margin-top: 20px">
            <button class="btn" @click="$emit('close')">
              Back to form
            </button>
          </div>
        </template>
      </div>
    </div>
  </Teleport>
</template>

<script setup>
import { computed } from "vue";

const props = defineProps({
  state: { type: String, required: true },
  summary: { type: Object, default: null },
  errorMessage: { type: String, default: "" },
  dashboardHref: { type: String, default: "/welcome" },
});

defineEmits(["close"]);

const PROGRESS_STATES = [
  "creating-customer",
  "opening-payment",
  "processing-payment",
  "creating-subscription",
];

const isProgress = computed(() => PROGRESS_STATES.includes(props.state));

const progressHeading = computed(() => {
  switch (props.state) {
    case "creating-customer": return "Creating your account...";
    case "opening-payment": return "Opening secure payment...";
    case "processing-payment": return "Confirming your card...";
    case "creating-subscription": return "Activating your membership...";
    default: return "";
  }
});

const stepLabel = computed(() => {
  switch (props.state) {
    case "creating-customer":
    case "opening-payment":
      return "Step 2 of 3 — Payment";
    case "processing-payment":
    case "creating-subscription":
      return "Step 2 of 3 — Finalizing";
    case "success":
      return "Step 3 of 3 — Welcome";
    case "error":
      return "Something went wrong";
    default:
      return "";
  }
});
</script>

<style scoped>
.signup-flow-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(42, 32, 21, 0.72);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.signup-flow-card {
  background: var(--bg);
  border: 1px dashed var(--border);
  padding: 32px;
  max-width: 520px;
  width: 100%;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
}

.signup-flow-step {
  font-family: var(--font-body);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.signup-flow-heading {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--text-bright);
  margin: 0 0 16px;
}

.signup-flow-body {
  font-family: var(--font-body);
  color: var(--text);
  line-height: 1.5;
  margin: 0;
}

.details-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.details-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 13px;
}

.details-row dt {
  color: var(--text-faint);
}

.details-row dd {
  color: var(--text-bright);
  font-weight: 500;
}

.error-box {
  border: 1px dashed var(--ember);
  color: var(--ember);
  padding: 12px 16px;
  font-size: 12px;
}

.button-row {
  display: flex;
  gap: 12px;
  align-items: center;
}
</style>
