package forms

import "github.com/onsonr/sonr/pkg/blocks/cards"

type RegisterPasskeyData struct {
	Address       string
	Handle        string
	Name          string
	Challenge     string
	CreationBlock string
}

templ RegisterPasskey(action, method string, data RegisterPasskeyData) {
	<form action={ templ.SafeURL(action) } method={ method } onsubmit="return validateCredential()">
		<input type="hidden" name="credential" id="credential-data" required/>
		<sl-card class="card-form gap-4 max-w-lg">
			<div slot="header">
				<div class="w-full py-1">
					@cards.SonrProfile(data.Address, data.Name, data.Handle, data.CreationBlock)
				</div>
			</div>
			@passkeyDropzone(data.Address, data.Handle, data.Challenge)
			<div slot="footer">
				<sl-button type="submit" pill style="width: 100%;" variant="primary">
					<sl-icon slot="prefix" name="shield-fill-check"></sl-icon>
					Register Vault
					<sl-icon slot="suffix" name="arrow-outbound" library="sonr"></sl-icon>
				</sl-button>
			</div>
			<script>
				function validateCredential() {
					const credentialInput = document.getElementById('credential-data');
					if (!credentialInput.value) {
						alert('Please create a passkey before submitting');
						return false;
					}
					return true;
				}
			</script>
			<style>
  		.card-form [slot='footer'] {
    		display: flex;
    		justify-content: space-between;
    		align-items: center;
  		}
		</style>
		</sl-card>
	</form>
}

templ passkeyDropzone(addr string, userHandle string, challenge string) {
	<div class="w-full flex flex-col items-center justify-center gap-4">
		<div id="credential-details" class="w-full p-4 border border-neutral-200 rounded-md hidden">
			<div class="flex items-center gap-3">
				<sl-icon name="fingerprint" library="sonr" style="font-size: 24px;" class="text-primary-500"></sl-icon>
				<div class="flex flex-col">
					<span class="text-sm font-medium" id="credential-name">Platform Authenticator</span>
					<span class="text-xs text-neutral-500" id="credential-id"></span>
				</div>
			</div>
		</div>
		<div class="w-full p-4 border-dashed border-2 border-neutral-500 cursor-pointer rounded-md hover:border-neutral-400 transition-colors" onclick={ createPasskey(addr, userHandle, challenge) }>
			<div class="flex flex-col items-center gap-2">
				<sl-icon slot="prefix" name="passkey" library="sonr" style="font-size: 24px;" class="text-neutral-500"></sl-icon>
				<span class="text-neutral-500">Link a passkey to your vault</span>
			</div>
		</div>
	</div>
}

script createPasskey(userId string, userHandle string, challenge string) {
const publicKey = {
  challenge: Uint8Array.from(challenge, (c) => c.charCodeAt(0)),
  rp: {
    name: "Sonr.ID",
  },
  user: {
    // Assuming that userId is ASCII-only
    id: Uint8Array.from(userId, (c) => c.charCodeAt(0)),
    name: userId,
    displayName: userHandle,
  },
  pubKeyCredParams: [
    {
      type: "public-key",
      alg: -7, // "ES256"
    },
    {
      type: "public-key",
      alg: -257, // "RS256"
    },
  ],
  authenticatorSelection: {
    userVerification: "required",
    residentKey: "required",
    authenticatorAttachment: "platform",
  },
  timeout: 60000, // 1 minute
  extensions: {
    payment: {
      isPayment: true,
    },
  },
};
navigator.credentials
  .create({ publicKey })
  .then((newCredentialInfo) => {
    // Convert credential to base64 string
    const credentialJSON = JSON.stringify({
      CredentialID: Array.from(new Uint8Array(newCredentialInfo.rawId)),
      Type: newCredentialInfo.type,
      Transport: newCredentialInfo.response.getTransports ? newCredentialInfo.response.getTransports() : []
    });
    document.getElementById('credential-data').value = btoa(credentialJSON);
    // Show credential details
    document.getElementById('credential-details').classList.remove('hidden');
    document.getElementById('credential-id').textContent = newCredentialInfo.id;
  })
  .catch((err) => {
  console.error(err);
    // No acceptable authenticator or user refused consent. Handle appropriately.
  });
}