package internal

import (
	"fmt"
	"path"

	abraFormatter "coopcloud.tech/abra/cli/formatter"
	"coopcloud.tech/abra/pkg/config"
	"coopcloud.tech/abra/pkg/recipe"
	"coopcloud.tech/abra/pkg/secret"
	"github.com/AlecAivazis/survey/v2"
	"github.com/sirupsen/logrus"
	"github.com/urfave/cli/v2"
)

type AppSecrets map[string]string

var Domain string
var DomainFlag = &cli.StringFlag{
	Name:        "domain",
	Aliases:     []string{"d"},
	Value:       "",
	Usage:       "Choose a domain name",
	Destination: &Domain,
}

var NewAppServer string
var NewAppServerFlag = &cli.StringFlag{
	Name:        "server",
	Aliases:     []string{"s"},
	Value:       "",
	Usage:       "Show apps of a specific server",
	Destination: &NewAppServer,
}

var NewAppName string
var NewAppNameFlag = &cli.StringFlag{
	Name:        "app-name",
	Aliases:     []string{"a"},
	Value:       "",
	Usage:       "Choose an app name",
	Destination: &NewAppName,
}

// RecipeName is used for configuring recipe name programmatically
var RecipeName string

// createSecrets creates all secrets for a new app.
func createSecrets(sanitisedAppName string) (AppSecrets, error) {
	appEnvPath := path.Join(config.ABRA_DIR, "servers", NewAppServer, fmt.Sprintf("%s.env", sanitisedAppName))
	appEnv, err := config.ReadEnv(appEnvPath)
	if err != nil {
		return nil, err
	}

	secretEnvVars := secret.ReadSecretEnvVars(appEnv)
	secrets, err := secret.GenerateSecrets(secretEnvVars, sanitisedAppName, NewAppServer)
	if err != nil {
		return nil, err
	}

	if Pass {
		for secretName := range secrets {
			secretValue := secrets[secretName]
			if err := secret.PassInsertSecret(secretValue, secretName, sanitisedAppName, NewAppServer); err != nil {
				return nil, err
			}
		}
	}
	return secrets, nil
}

// ensureDomainFlag checks if the domain flag was used. if not, asks the user for it/
func ensureDomainFlag(recipe recipe.Recipe, server string) error {
	if Domain == "" && !NoInput {
		prompt := &survey.Input{
			Message: "Specify app domain",
			Default: fmt.Sprintf("%s.%s", recipe.Name, server),
		}
		if err := survey.AskOne(prompt, &Domain); err != nil {
			return err
		}
	}

	if Domain == "" {
		return fmt.Errorf("no domain provided")
	}

	return nil
}

// ensureServerFlag checks if the server flag was used. if not, asks the user for it.
func ensureServerFlag() error {
	servers, err := config.GetServers()
	if err != nil {
		return err
	}

	if NewAppServer == "" && !NoInput {
		prompt := &survey.Select{
			Message: "Select app server:",
			Options: servers,
		}
		if err := survey.AskOne(prompt, &NewAppServer); err != nil {
			return err
		}
	}

	if NewAppServer == "" {
		return fmt.Errorf("no server provided")
	}

	return nil
}

// ensureServerFlag checks if the AppName flag was used. if not, asks the user for it.
func ensureAppNameFlag() error {
	if NewAppName == "" && !NoInput {
		prompt := &survey.Input{
			Message: "Specify app name:",
			Default: config.SanitiseAppName(Domain),
		}
		if err := survey.AskOne(prompt, &NewAppName); err != nil {
			return err
		}
	}

	if NewAppName == "" {
		return fmt.Errorf("no app name provided")
	}

	return nil
}

// NewAction is the new app creation logic
func NewAction(c *cli.Context) error {
	recipe := ValidateRecipeWithPrompt(c)

	if err := config.EnsureAbraDirExists(); err != nil {
		logrus.Fatal(err)
	}

	if err := ensureServerFlag(); err != nil {
		logrus.Fatal(err)
	}

	if err := ensureDomainFlag(recipe, NewAppServer); err != nil {
		logrus.Fatal(err)
	}

	if err := ensureAppNameFlag(); err != nil {
		logrus.Fatal(err)
	}

	sanitisedAppName := config.SanitiseAppName(NewAppName)
	if len(sanitisedAppName) > 45 {
		logrus.Fatalf("'%s' cannot be longer than 45 characters", sanitisedAppName)
	}
	logrus.Debugf("'%s' sanitised as '%s' for new app", NewAppName, sanitisedAppName)

	if err := config.TemplateAppEnvSample(recipe.Name, NewAppName, NewAppServer, Domain, recipe.Name); err != nil {
		logrus.Fatal(err)
	}

	if Secrets {
		secrets, err := createSecrets(sanitisedAppName)
		if err != nil {
			logrus.Fatal(err)
		}

		secretCols := []string{"Name", "Value"}
		secretTable := abraFormatter.CreateTable(secretCols)
		for secret := range secrets {
			secretTable.Append([]string{secret, secrets[secret]})
		}

		if len(secrets) > 0 {
			defer secretTable.Render()
		}
	}

	if NewAppServer == "default" {
		NewAppServer = "local"
	}

	tableCol := []string{"Name", "Domain", "Type", "Server"}
	table := abraFormatter.CreateTable(tableCol)
	table.Append([]string{sanitisedAppName, Domain, recipe.Name, NewAppServer})

	fmt.Println("")
	fmt.Println(fmt.Sprintf("A new %s app has been created! Here is an overview:", recipe.Name))
	fmt.Println("")
	table.Render()
	fmt.Println("")
	fmt.Println("You can configure this app by running the following:")
	fmt.Println(fmt.Sprintf("\n    abra app config %s", sanitisedAppName))
	fmt.Println("")
	fmt.Println("You can deploy this app by running the following:")
	fmt.Println(fmt.Sprintf("\n    abra app deploy %s", sanitisedAppName))
	fmt.Println("")

	return nil
}