feature: fetch, edit and add address

- fetch existing addresses from api,
- user can edit existing address
- user can add new address

src/app/features/checkout/address/address.html

@@ -3,10 +3,10 @@
     <app-go-back route="/" text="Home" />
     <div class="grid grid-cols-3 gap-x-10">
       <div class="col-span-2 flex flex-col space-y-4">
-        <app-address-select />
-        <app-address-select />
-        <app-address-select />
-        <app-address-form />
+        @for (address of addresses(); track address.id) {
+        <app-address-select [address]="address" (addressUpdated)="updateAddress($event)" />
+        }
+        <app-address-form (submitAddress)="createNewAddress($event)" />
       </div>
       <div>
         <app-order-summery />

src/app/features/checkout/address/address.ts

@@ -1,9 +1,16 @@
-import { Component, inject, OnInit } from "@angular/core";
+import { Component, inject, OnInit, signal } from "@angular/core";
 import { AddressForm } from "../components/address-form/address-form";
 import { GoBack } from "@app/shared/components/go-back/go-back";
 import { AddressSelect } from "../components/address-select/address-select";
 import { OrderSummery } from "../components/order-summery/order-summery";
-import { AddressService } from "@app/features/checkout/services/address-service";
+import {
+  AddressRequest,
+  AddressResponse,
+  AddressService,
+} from "@app/features/checkout/services/address-service";
+import { AuthService } from "@core/services/auth-service";
+import { User } from "@core/models/user.model";
+import { switchMap } from "rxjs";
 
 @Component({
   selector: "app-address",
@@ -13,6 +20,41 @@ import { AddressService } from "@app/features/checkout/services/address-service"
 })
 export class Address implements OnInit {
   addressService = inject(AddressService);
+  authService = inject(AuthService);
+  private user: User | undefined;
+  protected addresses = signal<AddressResponse[]>([]);
 
-  ngOnInit() {}
+  ngOnInit(): void {
+    this.authService
+      .getCurrentUser()
+      .pipe(
+        switchMap((user) => {
+          this.user = user;
+          if (user?.id) {
+            return this.addressService.fetchAddresses(user.id);
+          }
+          return [];
+        }),
+      )
+      .subscribe({
+        next: (addresses) => {
+          this.addresses.set(addresses.data);
+        },
+      });
+  }
+
+  createNewAddress(addressData: AddressRequest) {
+    this.addressService.createAddress(this.user!.id, addressData).subscribe({
+      next: (address) => this.addresses.update((addresses) => [...addresses, address]),
+    });
+  }
+  updateAddress(addressData: AddressResponse) {
+    console.log(addressData);
+    this.addressService.updateAddress(addressData.id, addressData).subscribe({
+      next: (address) =>
+        this.addresses.update((addresses) =>
+          addresses.map((a) => (a.id === address.id ? address : a)),
+        ),
+    });
+  }
 }

src/app/features/checkout/components/address-form/address-form.html

@@ -1,8 +1,14 @@
-<details class="card p-0!" open>
-  <summary class="p-4">
-    <label for="currentAddress" class="font-medium text-gray-600 ml-2">Add new address</label>
+<details class="card p-0!" title="Click to add a new address">
+  <summary class="p-6">
+    <label for="currentAddress" class="font-medium text-gray-600 ml-2"
+      >{{isEditing() ? 'Update address' : 'Add new address'}}</label
+    >
   </summary>
-  <form [formGroup]="addressForm" class="w-full flex flex-col gap-y-2 pt-0 p-4">
+  <form
+    [formGroup]="addressForm"
+    (ngSubmit)="submitForm()"
+    class="w-full flex flex-col gap-y-2 pt-0 p-4"
+  >
     <fieldset class="flex space-x-4 w-full">
       <fieldset class="fieldset w-full">
         <legend class="fieldset-legend">First Name</legend>
@@ -17,13 +23,8 @@
     </fieldset>
     <fieldset class="fieldset w-full">
       <legend class="fieldset-legend">Street Address</legend>
-      <input
-        type="text"
-        class="input"
-        formControlName="streetAddress"
-        placeholder="Your street address"
-      />
-      <app-error fieldName="Street address" [control]="addressForm.get('streetAddress')" />
+      <input type="text" class="input" formControlName="street" placeholder="Your street address" />
+      <app-error fieldName="Street address" [control]="addressForm.get('street')" />
     </fieldset>
     <fieldset class="flex space-x-4 w-full">
       <fieldset class="fieldset w-full">
@@ -43,8 +44,12 @@
       </fieldset>
     </fieldset>
     <div class="ml-auto flex space-x-4">
-      <button type="button" class="btn btn-ghost px-3 text-sm">Cancel</button>
-      <button class="btn btn-primary px-3 text-sm">Use this address</button>
+      <button type="button" (click)="cancelEditing()" class="btn btn-ghost px-3 text-sm">
+        Cancel
+      </button>
+      <button class="btn btn-primary px-3 text-sm">
+        {{isEditing() ? 'Update this address' : 'Use this address'}}
+      </button>
     </div>
   </form>
 </details>

src/app/features/checkout/components/address-form/address-form.ts

@@ -1,6 +1,7 @@
-import { Component } from "@angular/core";
+import { Component, EventEmitter, Input, Output, signal } from "@angular/core";
 import { FormControl, FormGroup, ReactiveFormsModule, Validators } from "@angular/forms";
 import { Error } from "@app/shared/components/error/error";
+import { AddressRequest, AddressResponse } from "@app/features/checkout/services/address-service";
 
 @Component({
   selector: "app-address-form",
@@ -9,12 +10,55 @@ import { Error } from "@app/shared/components/error/error";
   styleUrl: "./address-form.css",
 })
 export class AddressForm {
+  @Input() set initialData(address: AddressResponse) {
+    if (address) {
+      this.addressForm.patchValue(address);
+      this.address.set(address);
+      this.isEditing.set(true);
+    }
+  }
+  @Output() submitAddress: EventEmitter<AddressRequest> = new EventEmitter<AddressRequest>();
+  @Output() updateAddress: EventEmitter<AddressResponse> = new EventEmitter<AddressResponse>();
+  @Output() editingCanceled: EventEmitter<void> = new EventEmitter<void>();
+
+  protected isEditing = signal(false);
+  protected address = signal<AddressResponse | null>(null);
+
   addressForm = new FormGroup({
-    firstName: new FormControl("", { validators: Validators.required }),
-    lastName: new FormControl("", { validators: Validators.required }),
-    streetAddress: new FormControl("", { validators: Validators.required }),
+    firstName: new FormControl("", {
+      validators: [Validators.required, Validators.pattern("^[a-zA-Z]\\S+$")],
+    }),
+    lastName: new FormControl("", {
+      validators: [Validators.required, Validators.pattern("^[a-zA-Z]\\S+$")],
+    }),
+    street: new FormControl("", { validators: Validators.required }),
     city: new FormControl("", { validators: Validators.required }),
     state: new FormControl("", { validators: Validators.required }),
-    pinCode: new FormControl("", { validators: Validators.required }),
+    pinCode: new FormControl("", {
+      validators: [Validators.required, Validators.pattern("^[0-9]{6}$")],
+    }),
   });
+
+  submitForm() {
+    if (this.addressForm.invalid) {
+      this.addressForm.markAllAsTouched();
+      return;
+    }
+
+    const emittedData = this.addressForm.getRawValue() as AddressRequest;
+    this.addressForm.reset();
+
+    if (this.isEditing()) {
+      const mergedData = { ...this.address(), ...emittedData };
+      console.log(mergedData);
+      this.updateAddress.emit(mergedData as unknown as AddressResponse);
+    } else {
+      this.submitAddress.emit(emittedData);
+    }
+  }
+
+  cancelEditing() {
+    this.addressForm.reset();
+    this.editingCanceled.emit();
+  }
 }

src/app/features/checkout/components/address-select/address-select.html

@@ -1,10 +1,20 @@
+@if (!isEditing()) {
 <div class="flex justify-between card">
   <div class="flex space-x-4 items-center">
     <input type="radio" name="address" />
-    <p class="text-gray-600 font-medium">Kushal Saha</p>
-    <p class="text-gray-400 text-sm">48 St, Park Avenue, New Towm, 700021</p>
+    <p class="text-gray-600 font-medium">{{[address.firstName, address.lastName] | fullname}}</p>
+    <p class="text-gray-400 text-sm">
+      {{`${address.street}, ${address.city}, ${address.pinCode}`}}
+    </p>
   </div>
   <div>
-    <button class="btn btn-ghost text-sm px-2">Edit</button>
+    <button (click)="editForm()" class="btn btn-ghost text-sm px-2">Edit</button>
   </div>
 </div>
+} @else{
+<app-address-form
+  [initialData]="address"
+  (editingCanceled)="cancelEditing()"
+  (updateAddress)="updateAddress($event)"
+/>
+}

src/app/features/checkout/components/address-select/address-select.ts

@@ -1,9 +1,30 @@
-import { Component } from "@angular/core";
+import { Component, EventEmitter, Input, Output, signal } from "@angular/core";
+import { AddressResponse } from "@app/features/checkout/services/address-service";
+import { FullnamePipe } from "@shared/pipes/fullname-pipe";
+import { AddressForm } from "@app/features/checkout/components/address-form/address-form";
 
 @Component({
   selector: "app-address-select",
-  imports: [],
+  imports: [FullnamePipe, AddressForm],
   templateUrl: "./address-select.html",
   styleUrl: "./address-select.css",
 })
-export class AddressSelect {}
+export class AddressSelect {
+  @Input() address!: AddressResponse;
+  @Output() addressUpdated: EventEmitter<AddressResponse> = new EventEmitter<AddressResponse>();
+
+  protected isEditing = signal(false);
+
+  editForm() {
+    this.isEditing.set(true);
+  }
+
+  cancelEditing() {
+    this.isEditing.set(false);
+  }
+
+  updateAddress(address: AddressResponse) {
+    this.isEditing.set(false);
+    this.addressUpdated.emit(address);
+  }
+}

src/app/features/checkout/services/address-service.ts

@@ -1,6 +1,20 @@
 import { inject, Injectable } from "@angular/core";
 import { HttpClient } from "@angular/common/http";
 import { API_URL } from "@core/tokens/api-url-tokens";
+import { PaginatedResponse } from "@core/models/paginated.model";
+
+export interface AddressRequest {
+  firstName: string;
+  lastName: string;
+  street: string;
+  city: string;
+  state: string;
+  pinCode: string;
+}
+
+export interface AddressResponse extends AddressRequest {
+  id: number;
+}
 
 @Injectable({
   providedIn: "root",
@@ -10,6 +24,20 @@ export class AddressService {
   apiUrl = inject(API_URL);
 
   fetchAddresses(userId: number) {
-    return this.http.get(`${this.apiUrl}/user/${userId}/addresses`);
+    return this.http.get<PaginatedResponse<AddressResponse>>(
+      `${this.apiUrl}/user/${userId}/addresses`,
+    );
+  }
+
+  createAddress(userId: number, data: AddressRequest) {
+    return this.http.post<AddressResponse>(`${this.apiUrl}/user/${userId}/addresses`, data);
+  }
+  updateAddress(addressId: number, data: AddressRequest) {
+    return this.http.patch<AddressResponse>(`${this.apiUrl}/addresses/${addressId}`, data);
+  }
+  deleteAddress(userId: number, addressId: number) {
+    return this.http.delete<AddressResponse>(
+      `${this.apiUrl}/user/${userId}/addresses/${addressId}`,
+    );
   }
 }

src/app/shared/pipes/fullname-pipe.spec.ts

@@ -0,0 +1,8 @@
+import { FullnamePipe } from "./fullname-pipe";
+
+describe("FullnamePipe", () => {
+  it("create an instance", () => {
+    const pipe = new FullnamePipe();
+    expect(pipe).toBeTruthy();
+  });
+});

src/app/shared/pipes/fullname-pipe.ts

@@ -0,0 +1,13 @@
+import { Pipe, PipeTransform } from "@angular/core";
+import { TitleCasePipe } from "@angular/common";
+
+@Pipe({
+  name: "fullname",
+})
+export class FullnamePipe implements PipeTransform {
+  titlecase = new TitleCasePipe();
+
+  transform(values: string[]): unknown {
+    return this.titlecase.transform(values.join(" "));
+  }
+}