import {Component, Inject, OnInit} from '@angular/core';
import {MAT_DIALOG_DATA as MAT_DIALOG_DATA, MatDialogRef as MatDialogRef} from "@angular/material/dialog";
import {UserInfo, UsersService} from "../../../../api";
import {MatSnackBar as MatSnackBar} from "@angular/material/snack-bar";
import {AbstractControl, UntypedFormControl, ValidationErrors, Validators} from "@angular/forms";
import {EditData} from "./edit-data";


@Component({
  selector: 'app-edit',
  templateUrl: './edit.component.html',
  styleUrls: ['./edit.component.css']
})
export class EditComponent implements OnInit {
  username: string = "";
  email: string = "";
  password: string = "";
  duplicatePassword: string = "";
  admin: boolean = false;

  hide: boolean = true;
  pending: boolean = false;
  addMode: boolean = false;

  adminUpdateDisabled: boolean = false;

  usernameFormControl = new UntypedFormControl('', [Validators.required, Validators.minLength(3), Validators.maxLength(32)])
  emailFormControl = new UntypedFormControl('', [Validators.required, Validators.email])

  passwordEditControl = new UntypedFormControl('', [
    (control: AbstractControl): ValidationErrors | null => {
      return control.value.length > 0 && control.value.length < 6 ? {minlength: {value: control.value}} : null
    },
  ])
  passwordAddControl = new UntypedFormControl('', [Validators.required, Validators.minLength(6)])

  passwordDuplicateEditControl = new UntypedFormControl('', [
    (control: AbstractControl): ValidationErrors | null => {
      return control.value != this.password ? {duplicate: {value: control.value}} : null
    }
  ])
  passwordDuplicateAddControl = new UntypedFormControl('', [
    Validators.required,
    Validators.minLength(6),
    (control: AbstractControl): ValidationErrors | null => {
      return control.value != this.password ? {duplicate: {value: control.value}} : null
    }
  ])

  constructor(
    public dialogRef: MatDialogRef<EditComponent>,
    private userService: UsersService,
    private snackbar: MatSnackBar,
    @Inject(MAT_DIALOG_DATA) public user: EditData
  ) { }

  ngOnInit(): void {
    if(this.user) {
      this.username = this.user.username;
      this.email = this.user.email;
      this.admin = this.user.admin;
      this.addMode = true;
      this.adminUpdateDisabled = this.user.lastadmin && this.admin;
      console.log("Admin Mode Update Disabled: " + this.adminUpdateDisabled)
    }
  }

  onSubmitChanged() {
    this.pending = true;
    this.userService.usersUsernamePost(this.username, {
      admin: this.admin,
      password: this.password,
      email: this.email
    }).subscribe({
      next: response => {
        if(response.status == "success") {
          const updatedUser: UserInfo = {
            username: this.username,
            admin: this.admin,
            email: this.email
          };
          this.dialogRef.close(updatedUser);
          this.snackbar.open("Edit User was successfull", "", {duration: 2000});
          this.pending = false;
        }
      },
      error: err => {
        if(err.status == 403) {
          if(err.status == 403) {
            this.snackbar.open("You have no authorization to perform this Operation!","", {duration: 2000})
            this.pending = false;
          } else if(err.status == 404) {
            this.snackbar.open("The user could not be found", "", {duration: 2000});
            this.pending = false;
          }
        }
      }
    })
  }

  onClose() {
    this.dialogRef.close();
  }

  onAddUser() {
    this.pending = true;

    this.userService.usersPut({
      username: this.username,
      password: this.password,
      email: this.email,
      admin: this.admin
    }).subscribe({
      next: response => {
        if(response.status == "success") {
          const addedUser: UserInfo = {
            username: this.username,
            email: this.email,
            admin: this.admin
          };
          this.dialogRef.close(addedUser);
          this.snackbar.open("User has been added", "", {duration: 2000})
          this.pending = false
        }
      },
      error: err => {
        if(err.status == 403) {
          this.snackbar.open("You have no authorization to perform this Operation!","", {duration: 2000})
          this.pending = false;
        }else if(err.status == 409) {
          this.snackbar.open("User already exist!", "", {duration: 2000})
          this.pending = false;
        }
      }
    })
  }

  getUsernameErrorMessage() : string {
    if(this.usernameFormControl.hasError('requiered')) {
      return "Please enter a username!";
    } else if(this.usernameFormControl.hasError('minlength')) {
      return "The username is to short!"
    } else if(this.usernameFormControl.hasError("maxlength")) {
      return "The username is to long!"
    }
    return "";
  }

  getEmailErrorMessage(): string {
    if(this.emailFormControl.hasError('requiered')) {
      return "Please enter a email!";
    } else if(this.emailFormControl.hasError('email')) {
      return "Please enter a valid Email!"
    }
    return "";
  }

  getPasswordErrorMessage(): string {
    if(this.user) {
      //Add mode
      if(this.passwordAddControl.hasError('requiered')) {
        return "Please enter a password!"
      } else if(this.passwordAddControl.hasError('minlength')) {
        return "The password needs to contain at least 6 chars!"
      }
      return "";
    } else {
      return "";
    }
  }

  getPasswordDuplicateErrorMessage(): string {
    if(this.user) {
      //Add mode
      if(this.passwordDuplicateAddControl.hasError('requiered')) {
        return "Please enter a password!"
      } else if(this.passwordDuplicateAddControl.hasError('minlength')) {
        return "The password needs to contain at least 6 chars!"
      } else if(this.passwordDuplicateAddControl.hasError('duplicate')) {
        return "The passwords arent identical!"
      }
      return "";
    } else {
      if(this.passwordDuplicateEditControl.hasError('requiered')) {
        return "Please enter a password!"
      } else if(this.passwordDuplicateEditControl.hasError('minlength')) {
        return "The password needs to contain at least 6 chars!"
      } else if(this.passwordDuplicateAddControl.hasError('duplicate')) {
        return "The passwords arent identical!"
      }
      return "";
    }
  }
}