package tgbotapi

import (
	"encoding/json"
	"fmt"
	"net/url"
	"strconv"
)

// PassportRequestInfoConfig allows you to request passport info
type PassportRequestInfoConfig struct {
	BotID     int            `json:"bot_id"`
	Scope     *PassportScope `json:"scope"`
	Nonce     string         `json:"nonce"`
	PublicKey string         `json:"public_key"`
}

func LinkToPassportRequest(config PassportRequestInfoConfig) (string, error) {
	scope, err := json.Marshal(config.Scope)
	if err != nil {
		panic("couldn't pack scope")
	}
	tgurl := fmt.Sprintf("tg://resolve?domain=telegrampassport&bot_id=%v&scope=%v&public_key=%v&nonce=%v",
		strconv.Itoa(config.BotID),
		url.PathEscape(string(scope)),
		url.PathEscape(config.PublicKey),
		url.PathEscape(config.Nonce),
	)
	fmt.Println(tgurl)

	return tgurl, nil
}

type PassportScopeElement interface {
	ScopeType() string
}
type PassportScope struct {
	V    int                    `json:"v"`
	Data []PassportScopeElement `json:"data"`
}

type PassportScopeElementOneOfSeveral struct {
}

func (eo *PassportScopeElementOneOfSeveral) ScopeType() string {
	return "one_of"
}

type PassportScopeElementOne struct {
	Type        string `json:"type"` // One of “personal_details”, “passport”, “driver_license”, “identity_card”, “internal_passport”, “address”, “utility_bill”, “bank_statement”, “rental_agreement”, “passport_registration”, “temporary_registration”, “phone_number”, “email”
	Selfie      bool   `json:"selfie"`
	Translation bool   `json:"translation"`
	NativeNames bool   `json:"native_name"`
}

func (eo *PassportScopeElementOne) ScopeType() string {
	return "one"
}

type (
	// PassportData contains information about Telegram Passport data shared with
	// the bot by the user.
	PassportData struct {
		// Array with information about documents and other Telegram Passport
		// elements that was shared with the bot
		Data []EncryptedPassportElement `json:"data"`

		// Encrypted credentials required to decrypt the data
		Credentials *EncryptedCredentials `json:"credentials"`
	}

	// PassportFile represents a file uploaded to Telegram Passport. Currently all
	// Telegram Passport files are in JPEG format when decrypted and don't exceed
	// 10MB.
	PassportFile struct {
		// Unique identifier for this file
		FileID string `json:"file_id"`

		// File size
		FileSize int `json:"file_size"`

		// Unix time when the file was uploaded
		FileDate int64 `json:"file_date"`
	}

	// EncryptedPassportElement contains information about documents or other
	// Telegram Passport elements shared with the bot by the user.
	EncryptedPassportElement struct {
		// Element type.
		Type string `json:"type"`

		// Base64-encoded encrypted Telegram Passport element data provided by
		// the user, available for "personal_details", "passport",
		// "driver_license", "identity_card", "identity_passport" and "address"
		// types. Can be decrypted and verified using the accompanying
		// EncryptedCredentials.
		Data string `json:"data,omitempty"`

		// User's verified phone number, available only for "phone_number" type
		PhoneNumber string `json:"phone_number,omitempty"`

		// User's verified email address, available only for "email" type
		Email string `json:"email,omitempty"`

		// Array of encrypted files with documents provided by the user,
		// available for "utility_bill", "bank_statement", "rental_agreement",
		// "passport_registration" and "temporary_registration" types. Files can
		// be decrypted and verified using the accompanying EncryptedCredentials.
		Files []PassportFile `json:"files,omitempty"`

		// Encrypted file with the front side of the document, provided by the
		// user. Available for "passport", "driver_license", "identity_card" and
		// "internal_passport". The file can be decrypted and verified using the
		// accompanying EncryptedCredentials.
		FrontSide *PassportFile `json:"front_side,omitempty"`

		// Encrypted file with the reverse side of the document, provided by the
		// user. Available for "driver_license" and "identity_card". The file can
		// be decrypted and verified using the accompanying EncryptedCredentials.
		ReverseSide *PassportFile `json:"reverse_side,omitempty"`

		// Encrypted file with the selfie of the user holding a document,
		// provided by the user; available for "passport", "driver_license",
		// "identity_card" and "internal_passport". The file can be decrypted
		// and verified using the accompanying EncryptedCredentials.
		Selfie *PassportFile `json:"selfie,omitempty"`
	}

	// EncryptedCredentials contains data required for decrypting and
	// authenticating EncryptedPassportElement. See the Telegram Passport
	// Documentation for a complete description of the data decryption and
	// authentication processes.
	EncryptedCredentials struct {
		// Base64-encoded encrypted JSON-serialized data with unique user's
		// payload, data hashes and secrets required for EncryptedPassportElement
		// decryption and authentication
		Data string `json:"data"`

		// Base64-encoded data hash for data authentication
		Hash string `json:"hash"`

		// Base64-encoded secret, encrypted with the bot's public RSA key,
		// required for data decryption
		Secret string `json:"secret"`
	}

	// PassportElementError represents an error in the Telegram Passport element
	// which was submitted that should be resolved by the user.
	PassportElementError interface{}

	// PassportElementErrorDataField represents an issue in one of the data
	// fields that was provided by the user. The error is considered resolved
	// when the field's value changes.
	PassportElementErrorDataField struct {
		// Error source, must be data
		Source string `json:"source"`

		// The section of the user's Telegram Passport which has the error, one
		// of "personal_details", "passport", "driver_license", "identity_card",
		// "internal_passport", "address"
		Type string `json:"type"`

		// Name of the data field which has the error
		FieldName string `json:"field_name"`

		// Base64-encoded data hash
		DataHash string `json:"data_hash"`

		// Error message
		Message string `json:"message"`
	}
	// PassportElementErrorFrontSide represents an issue with the front side of
	// a document. The error is considered resolved when the file with the front
	// side of the document changes.
	PassportElementErrorFrontSide struct {
		// Error source, must be front_side
		Source string `json:"source"`

		// The section of the user's Telegram Passport which has the issue, one
		// of "passport", "driver_license", "identity_card", "internal_passport"
		Type string `json:"type"`

		// Base64-encoded hash of the file with the front side of the document
		FileHash string `json:"file_hash"`

		// Error message
		Message string `json:"message"`
	}

	// PassportElementErrorReverseSide represents an issue with the reverse side
	// of a document. The error is considered resolved when the file with reverse
	// side of the document changes.
	PassportElementErrorReverseSide struct {
		// Error source, must be reverse_side
		Source string `json:"source"`

		// The section of the user's Telegram Passport which has the issue, one
		// of "driver_license", "identity_card"
		Type string `json:"type"`

		// Base64-encoded hash of the file with the reverse side of the document
		FileHash string `json:"file_hash"`

		// Error message
		Message string `json:"message"`
	}

	// PassportElementErrorSelfie represents an issue with the selfie with a
	// document. The error is considered resolved when the file with the selfie
	// changes.
	PassportElementErrorSelfie struct {
		// Error source, must be selfie
		Source string `json:"source"`

		// The section of the user's Telegram Passport which has the issue, one
		// of "passport", "driver_license", "identity_card", "internal_passport"
		Type string `json:"type"`

		// Base64-encoded hash of the file with the selfie
		FileHash string `json:"file_hash"`

		// Error message
		Message string `json:"message"`
	}

	// PassportElementErrorFile represents an issue with a document scan. The
	// error is considered resolved when the file with the document scan changes.
	PassportElementErrorFile struct {
		// Error source, must be file
		Source string `json:"source"`

		// The section of the user's Telegram Passport which has the issue, one
		// of "utility_bill", "bank_statement", "rental_agreement",
		// "passport_registration", "temporary_registration"
		Type string `json:"type"`

		// Base64-encoded file hash
		FileHash string `json:"file_hash"`

		// Error message
		Message string `json:"message"`
	}

	// PassportElementErrorFiles represents an issue with a list of scans. The
	// error is considered resolved when the list of files containing the scans
	// changes.
	PassportElementErrorFiles struct {
		// Error source, must be files
		Source string `json:"source"`

		// The section of the user's Telegram Passport which has the issue, one
		// of "utility_bill", "bank_statement", "rental_agreement",
		// "passport_registration", "temporary_registration"
		Type string `json:"type"`

		// List of base64-encoded file hashes
		FileHashes []string `json:"file_hashes"`

		// Error message
		Message string `json:"message"`
	}

	Credentials struct {
		Data SecureData `json:"secure_data"`
		// Nonce the same nonce given in the request
		Nonce string `json:"nonce"`
	}

	SecureData map[string]*SecureValue
	// PersonalDetails       *SecureValue `json:"personal_details"`
	// Passport              *SecureValue `json:"passport"`
	// InternalPassport      *SecureValue `json:"internal_passport"`
	// DriverLicense         *SecureValue `json:"driver_license"`
	// IdentityCard          *SecureValue `json:"identity_card"`
	// Address               *SecureValue `json:"address"`
	// UtilityBill           *SecureValue `json:"utility_bill"`
	// BankStatement         *SecureValue `json:"bank_statement"`
	// RentalAgreement       *SecureValue `json:"rental_agreement"`
	// PassportRegistration  *SecureValue `json:"passport_registration"`
	// TemporaryRegistration *SecureValue `json:"temporary_registration"`

	SecureValue struct {
		Data        *DataCredentials   `json:"data"`
		FrontSide   *FileCredentials   `json:"front_side"`
		ReverseSide *FileCredentials   `json:"reverse_side"`
		Selfie      *FileCredentials   `json:"selfie"`
		Translation []*FileCredentials `json:"translation"`
		Files       []*FileCredentials `json:"files"`
	}
	DataCredentials struct {
		// DataHash checksum of encrypted data
		DataHash string `json:"data_hash"`
		// Secret of encrypted data
		Secret string `json:"secret"`
	}

	FileCredentials struct {
		// FileHash checksum of encrypted data
		FileHash string `json:"file_hash"`
		// Secret of encrypted data
		Secret string `json:"secret"`
	}
	// PersonalDetails https://core.telegram.org/passport#personaldetails
	PersonalDetails struct {
		FirstName            string `json:"first_name"`
		LastName             string `json:"last_name"`
		MiddleName           string `json:"middle_name"`
		BirthDate            string `json:"birth_date"`
		Gender               string `json:"gender"`
		CountryCode          string `json:"country_code"`
		ResidenceCountryCode string `json:"residence_country_code"`
		FirstNameNative      string `json:"first_name_native"`
		LastNameNative       string `json:"last_name_native"`
		MiddleNameNative     string `json:"middle_name_native"`
	}

	// IdDocumentData https://core.telegram.org/passport#iddocumentdata
	IDDocumentData struct {
		DocumentNumber string `json:"document_no"`
		ExpiryDate     string `json:"expiry_date"`
	}
)