import { Button } from 'components/Button'
import { Conditional } from 'components/Conditional'
import { ContractPageHeader } from 'components/ContractPageHeader'
import { ExecuteCombobox } from 'components/contracts/badgeHub/ExecuteCombobox'
import { useExecuteComboboxState } from 'components/contracts/badgeHub/ExecuteCombobox.hooks'
import { FormControl } from 'components/FormControl'
import { AddressInput, NumberInput } from 'components/forms/FormInput'
import { useInputState, useNumberInputState } from 'components/forms/FormInput.hooks'
import { InputDateTime } from 'components/InputDateTime'
import { JsonPreview } from 'components/JsonPreview'
import { LinkTabs } from 'components/LinkTabs'
import { badgeHubLinkTabs } from 'components/LinkTabs.data'
import { TransactionHash } from 'components/TransactionHash'
import { useContracts } from 'contexts/contracts'
import { useWallet } from 'contexts/wallet'
import type { DispatchExecuteArgs } from 'contracts/badgeHub/messages/execute'
import { dispatchExecute, isEitherType, previewExecutePayload } from 'contracts/badgeHub/messages/execute'
import * as crypto from 'crypto'
import { toPng } from 'html-to-image'
import type { NextPage } from 'next'
import { useRouter } from 'next/router'
import { NextSeo } from 'next-seo'
import { QRCodeCanvas } from 'qrcode.react'
import type { FormEvent } from 'react'
import { useEffect, useMemo, useRef, useState } from 'react'
import { toast } from 'react-hot-toast'
import { FaArrowRight } from 'react-icons/fa'
import { useMutation } from 'react-query'
import * as secp256k1 from 'secp256k1'
import { NETWORK } from 'utils/constants'
import { withMetadata } from 'utils/layout'
import { links } from 'utils/links'

import { TextInput } from '../../../components/forms/FormInput'
import { MetadataAttributes } from '../../../components/forms/MetadataAttributes'
import { useMetadataAttributesState } from '../../../components/forms/MetadataAttributes.hooks'

const BadgeHubExecutePage: NextPage = () => {
  const { badgeHub: contract } = useContracts()
  const wallet = useWallet()
  const [lastTx, setLastTx] = useState('')

  const [timestamp, setTimestamp] = useState<Date | undefined>(undefined)
  const [transferrable, setTransferrable] = useState<boolean>(false)
  const [createdBadgeId, setCreatedBadgeId] = useState<string | undefined>(undefined)
  const [createdBadgeKey, setCreatedBadgeKey] = useState<string | undefined>(undefined)
  const qrRef = useRef<HTMLDivElement>(null)

  const comboboxState = useExecuteComboboxState()
  const type = comboboxState.value?.id

  const tokenIdState = useNumberInputState({
    id: 'token-id',
    name: 'tokenId',
    title: 'Token ID',
    subtitle: 'Enter the token ID',
  })

  const maxSupplyState = useNumberInputState({
    id: 'max-supply',
    name: 'max-supply',
    title: 'Max Supply',
    subtitle: 'Maximum number of badges that can be minted',
  })

  const contractState = useInputState({
    id: 'contract-address',
    name: 'contract-address',
    title: 'Badge Hub Address',
    subtitle: 'Address of the Badge Hub contract',
  })
  const contractAddress = contractState.value

  // Metadata related fields
  const managerState = useInputState({
    id: 'manager-address',
    name: 'manager',
    title: 'Manager',
    subtitle: 'Badge Hub Manager',
    defaultValue: wallet.address,
  })

  const nameState = useInputState({
    id: 'metadata-name',
    name: 'metadata-name',
    title: 'Name',
    subtitle: 'Name of the badge',
  })

  const descriptionState = useInputState({
    id: 'metadata-description',
    name: 'metadata-description',
    title: 'Description',
    subtitle: 'Description of the badge',
  })

  const imageState = useInputState({
    id: 'metadata-image',
    name: 'metadata-image',
    title: 'Image',
    subtitle: 'Badge Image URL',
  })

  const imageDataState = useInputState({
    id: 'metadata-image-data',
    name: 'metadata-image-data',
    title: 'Image Data',
    subtitle: 'Raw SVG image data',
  })

  const externalUrlState = useInputState({
    id: 'metadata-external-url',
    name: 'metadata-external-url',
    title: 'External URL',
    subtitle: 'External URL for the badge',
  })

  const attributesState = useMetadataAttributesState()

  const backgroundColorState = useInputState({
    id: 'metadata-background-color',
    name: 'metadata-background-color',
    title: 'Background Color',
    subtitle: 'Background color of the badge',
  })

  const animationUrlState = useInputState({
    id: 'metadata-animation-url',
    name: 'metadata-animation-url',
    title: 'Animation URL',
    subtitle: 'Animation URL for the badge',
  })

  const youtubeUrlState = useInputState({
    id: 'metadata-youtube-url',
    name: 'metadata-youtube-url',
    title: 'YouTube URL',
    subtitle: 'YouTube URL for the badge',
  })
  // Rules related fields
  const keyState = useInputState({
    id: 'key',
    name: 'key',
    title: 'Key',
    subtitle: 'The key generated for the badge',
  })

  const idState = useNumberInputState({
    id: 'id',
    name: 'id',
    title: 'ID',
    subtitle: 'The ID of the badge',
  })

  const ownerState = useInputState({
    id: 'owner-address',
    name: 'owner',
    title: 'Owner',
    subtitle: 'The owner of the badge',
  })

  const pubkeyState = useInputState({
    id: 'pubkey',
    name: 'pubkey',
    title: 'Pubkey',
    subtitle: 'The public key for the badge',
  })

  const signatureState = useInputState({
    id: 'signature',
    name: 'signature',
    title: 'Signature',
    subtitle: 'The signature for the badge',
  })

  const nftState = useInputState({
    id: 'nft-address',
    name: 'nft-address',
    title: 'NFT Contract Address',
    subtitle: 'The NFT Contract Address for the badge',
  })

  const limitState = useNumberInputState({
    id: 'limit',
    name: 'limit',
    title: 'Limit',
    subtitle: 'Number of keys/owners to execute the action for',
  })

  const showBadgeField = type === 'create_badge'
  const showMetadataField = isEitherType(type, ['create_badge', 'edit_badge'])
  const showIdField = type === 'edit_badge'

  const messages = useMemo(() => contract?.use(contractState.value), [contract, wallet.address, contractState.value])
  const payload: DispatchExecuteArgs = {
    badge: {
      manager: managerState.value,
      metadata: {
        name: nameState.value || undefined,
        description: descriptionState.value || undefined,
        image: imageState.value || undefined,
        image_data: imageDataState.value || undefined,
        external_url: externalUrlState.value || undefined,
        attributes:
          attributesState.values[0]?.trait_type && attributesState.values[0]?.value
            ? attributesState.values
                .map((attr) => ({
                  trait_type: attr.trait_type,
                  value: attr.value,
                }))
                .filter((attr) => attr.trait_type && attr.value)
            : undefined,
        background_color: backgroundColorState.value || undefined,
        animation_url: animationUrlState.value || undefined,
        youtube_url: youtubeUrlState.value || undefined,
      },
      transferrable,
      rule: {
        by_key: keyState.value,
      },
      expiry: timestamp ? timestamp.getTime() * 1000000 : undefined,
      max_supply: maxSupplyState.value || undefined,
    },
    metadata: {
      name: nameState.value || undefined,
      description: descriptionState.value || undefined,
      image: imageState.value || undefined,
      image_data: imageDataState.value || undefined,
      external_url: externalUrlState.value || undefined,
      attributes:
        attributesState.values[0]?.trait_type && attributesState.values[0]?.value
          ? attributesState.values
              .map((attr) => ({
                trait_type: attr.trait_type,
                value: attr.value,
              }))
              .filter((attr) => attr.trait_type && attr.value)
          : undefined,
      background_color: backgroundColorState.value || undefined,
      animation_url: animationUrlState.value || undefined,
      youtube_url: youtubeUrlState.value || undefined,
    },
    id: idState.value,
    owner: ownerState.value,
    pubkey: pubkeyState.value,
    signature: signatureState.value,
    keys: [],
    limit: limitState.value,
    owners: [],
    nft: nftState.value,
    contract: contractState.value,
    messages,
    txSigner: wallet.address,
    type,
  }
  const { isLoading, mutate } = useMutation(
    async (event: FormEvent) => {
      event.preventDefault()
      if (!type) {
        throw new Error('Please select message type!')
      }
      if (!wallet.initialized) {
        throw new Error('Please connect your wallet.')
      }
      if (contractState.value === '') {
        throw new Error('Please enter the contract address.')
      }
      const txHash = await toast.promise(dispatchExecute(payload), {
        error: `${type.charAt(0).toUpperCase() + type.slice(1)} execute failed!`,
        loading: 'Executing message...',
        success: (tx) => `Transaction ${tx.split(':')[0]} success!`,
      })
      if (txHash) {
        setLastTx(txHash.split(':')[0])
        setCreatedBadgeId(txHash.split(':')[1])
        console.log(txHash.split(':')[1])
      }
    },
    {
      onError: (error) => {
        toast.error(String(error), { style: { maxWidth: 'none' } })
      },
    },
  )

  const handleGenerateKey = () => {
    let privKey: Buffer
    do {
      privKey = crypto.randomBytes(32)
    } while (!secp256k1.privateKeyVerify(privKey))

    const privateKey = privKey.toString('hex')
    setCreatedBadgeKey(privateKey)
    console.log('Private Key: ', privateKey)

    const publicKey = Buffer.from(secp256k1.publicKeyCreate(privKey)).toString('hex')

    keyState.onChange(publicKey)
  }

  const handleDownloadQr = async () => {
    const qrElement = qrRef.current
    await toPng(qrElement as HTMLElement).then((dataUrl) => {
      const link = document.createElement('a')
      link.download = `badge-${createdBadgeId as string}.png`
      link.href = dataUrl
      link.click()
    })
  }

  const router = useRouter()

  useEffect(() => {
    if (contractAddress.length > 0) {
      void router.replace({ query: { contractAddress } })
    }
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [contractAddress])

  useEffect(() => {
    const initial = new URL(document.URL).searchParams.get('contractAddress')
    if (initial && initial.length > 0) contractState.onChange(initial)
    if (attributesState.values.length === 0)
      attributesState.add({
        trait_type: '',
        value: '',
      })
  }, [])

  return (
    <section className="py-6 px-12 space-y-4">
      <NextSeo title="Execute Badge Hub Contract" />
      <ContractPageHeader
        description="The Badge Hub contract is where event organizers create, mint, or edit badges."
        link={links.Documentation}
        title="Badge Hub Contract"
      />
      <LinkTabs activeIndex={2} data={badgeHubLinkTabs} />

      {showBadgeField && createdBadgeId && createdBadgeKey && (
        <div className="ml-4">
          <div className="w-[384px] h-[384px]" ref={qrRef}>
            <QRCodeCanvas
              size={384}
              value={`${
                NETWORK === 'testnet' ? 'https://badges.publicawesome.dev' : 'https://badges.stargaze.zone'
              }/?id=${createdBadgeId}&key=${createdBadgeKey}`}
            />
          </div>
          <Button className="mt-2" onClick={() => void handleDownloadQr()}>
            Download QR Code
          </Button>
        </div>
      )}
      <form className="grid grid-cols-2 p-4 space-x-8" onSubmit={mutate}>
        <div className="space-y-8">
          <AddressInput {...contractState} />
          <ExecuteCombobox {...comboboxState} />
          {showBadgeField && <AddressInput {...managerState} />}
          {showBadgeField && <TextInput {...keyState} />}
          {showBadgeField && <Button onClick={handleGenerateKey}>Generate Key</Button>}
          {showMetadataField && (
            <div className="p-4 rounded-md border-2 border-gray-800">
              <TextInput className="mt-2" {...nameState} />
              <TextInput className="mt-2" {...descriptionState} />
              <TextInput className="mt-2" {...imageState} />
              <TextInput className="mt-2" {...imageDataState} />
              <TextInput className="mt-2" {...externalUrlState} />
              <div className="mt-2">
                <MetadataAttributes
                  attributes={attributesState.entries}
                  onAdd={attributesState.add}
                  onChange={attributesState.update}
                  onRemove={attributesState.remove}
                  title="Traits"
                />
              </div>
              <TextInput className="mt-2" {...backgroundColorState} />
              <TextInput className="mt-2" {...animationUrlState} />
              <TextInput className="mt-2" {...youtubeUrlState} />
            </div>
          )}

          <Conditional test={showBadgeField}>
            <FormControl htmlId="expiry-date" subtitle="Badge minting expiry date" title="Expiry Date">
              <InputDateTime minDate={new Date()} onChange={(date) => setTimestamp(date)} value={timestamp} />
            </FormControl>
          </Conditional>
          {showBadgeField && <NumberInput {...maxSupplyState} />}
          {showBadgeField && (
            <div className="form-control">
              <label className="justify-start cursor-pointer label">
                <span className="mr-4">Transferrable</span>
                <input
                  checked={transferrable}
                  className={`toggle ${transferrable ? `bg-stargaze` : `bg-gray-600`}`}
                  onClick={() => setTransferrable(!transferrable)}
                  type="checkbox"
                />
              </label>
            </div>
          )}
          {/* TODO: Fix address execute message */}
        </div>
        <div className="space-y-8">
          <div className="relative">
            <Button className="absolute top-0 right-0" isLoading={isLoading} rightIcon={<FaArrowRight />} type="submit">
              Execute
            </Button>
            <FormControl subtitle="View execution transaction hash" title="Transaction Hash">
              <TransactionHash hash={lastTx} />
            </FormControl>
          </div>
          <FormControl subtitle="View current message to be sent" title="Payload Preview">
            <JsonPreview content={previewExecutePayload(payload)} isCopyable />
          </FormControl>
        </div>
      </form>
    </section>
  )
}

export default withMetadata(BadgeHubExecutePage, { center: false })