package account

import (
	"git.supernets.org/perp/gopay/internal/context"
	"git.supernets.org/perp/gopay/internal/jwt"
	v1 "git.supernets.org/perp/gopay/internal/models/v1"
	"golang.org/x/crypto/bcrypt"
)

// Register an account
func Register(ctx *context.Context) {
	// Check if registration is disabled
	if ctx.Config.Auth.Register {
		ctx.Error(403, "RegistrationDisabled")
		return
	}

	// Store body
	var body *v1.Register

	// Bind JSON
	err := ctx.BindJSON(&body)
	if err != nil {
		ctx.Error(400, "MissingBody")
		return
	}

	// Select account by username
	account, err := ctx.Database.Account.SelectByUsername(body.Username)
	if err != nil {
		ctx.Error(500, "DatabaseError")
		return
	}

	// Compare username
	if account.Username == body.Username {
		ctx.Error(400, "UsernameTaken")
		return
	}

	// Hash password
	password, err := bcrypt.GenerateFromPassword([]byte(body.Password), ctx.Config.Auth.Cost)
	if err != nil {
		ctx.Error(500, "InternalServerError")
		return
	}

	// Insert account
	err = ctx.Database.Account.Insert(body.Username, string(password))
	if err != nil {
		ctx.Error(500, "DatabaseError")
		return
	}

	// Select account by username
	account, err = ctx.Database.Account.SelectByUsername(body.Username)
	if err != nil {
		ctx.Error(500, "DatabaseError")
		return
	}

	// Generate token
	token, err := jwt.Encode(account.ID)
	if err != nil {
		ctx.Error(500, "InternalServerError")
		return
	}

	ctx.Token(token)
}