feat(webcal): Finished main features of webcal module

pom.xml

@@ -20,6 +20,7 @@
         <module>devkit-core</module>
         <module>devkit-utils</module>
         <module>guid</module>
+        <module>webcal</module>
         <module>simple-jwt-facade</module>
         <module>simple-jwt-authzero</module>
         <module>simple-jwt-jjwt</module>

webcal/pom.xml

@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright (C) 2023 CodeCraftersCN.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>cn.org.codecrafters</groupId>
+        <artifactId>jdevkit</artifactId>
+        <version>1.0.0</version>
+    </parent>
+
+    <artifactId>webcal</artifactId>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>

webcal/src/main/java/cn/org/codecrafters/webcal/WebCalendar.java

@@ -0,0 +1,166 @@
+/*
+ * Copyright (C) 2023 CodeCraftersCN.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package cn.org.codecrafters.webcal;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * WebCalendar
+ *
+ * @author Zihlu Wang
+ */
+public final class WebCalendar {
+
+    //
+    // Constants
+    //
+
+    // Tag
+    private final static String TAG = "VCALENDAR";
+
+    //
+    // Fields
+    //
+
+    private String name;
+
+    /**
+     * Company name. This value is to specify the {@code productIdentifier}
+     * property.
+     */
+    private String companyName;
+
+    /**
+     * Product name. This value is to specify the {@code productIdentifier}
+     * property.
+     */
+    private String productName;
+
+    private String domainName;
+
+    /**
+     * Calendar scale, referenced from <a href="https://icalendar.org/iCalendar-RFC-5545/3-7-1-calendar-scale.html"
+     * >RFC 5545 - 3.7.1. Calendar Scale</a>.
+     */
+    private final String scale = "GREGORIAN";
+
+    /**
+     * Method, referenced from <a href="https://icalendar.org/iCalendar-RFC-5545/3-7-2-method.html"
+     * >RFC 5545 - 3.7.2. Method</a>.
+     */
+    private String method;
+
+    private final String version = "2.0";
+
+    private List<WebCalendarNode> nodes;
+
+    //
+    // Constructors
+    //
+    public WebCalendar() {
+        this.nodes = new ArrayList<>();
+    }
+
+    //
+    // Methods
+    //
+
+    /**
+     * Set the name for this calendar.
+     *
+     * @param name The name for the calendar.
+     * @return The calendar instance.
+     */
+    public WebCalendar setName(String name) {
+        this.name = name;
+        return this;
+    }
+
+    /**
+     * Set the company name for this calendar.
+     *
+     * @param companyName The company name for the calendar.
+     * @return The calendar instance.
+     */
+    public WebCalendar setCompanyName(String companyName) {
+        this.companyName = companyName;
+        return this;
+    }
+
+    public WebCalendar setDomainName(String domainName) {
+        this.domainName = domainName;
+        return this;
+    }
+
+    /**
+     * Set the product name for this calendar.
+     *
+     * @param productName The product name for the calendar.
+     * @return The calendar instance.
+     */
+    public WebCalendar setProductName(String productName) {
+        this.productName = productName;
+        return this;
+    }
+
+    /**
+     * Set the method for this calendar.
+     *
+     * @param method The product name for the calendar.
+     * @return The calendar instance.
+     */
+    public WebCalendar setMethod(String method) {
+        this.method = method;
+        return this;
+    }
+
+    /**
+     * Add a calendar node to this calendar.
+     *
+     * @param node Any calendar node.
+     * @return The calendar instance.
+     */
+    public WebCalendar addEvent(WebCalendarNode node) {
+        this.nodes.add(node);
+        return this;
+    }
+
+    /**
+     * Resolve the calendar instance to a text that implements RFC-5545.
+     *
+     * @return A string includes all events in this calendar.
+     */
+    public String resolve() {
+        var events = new StringBuilder();
+        if (nodes != null && !nodes.isEmpty()) {
+            nodes.forEach(item ->
+                    events.append(item.setDomainName(domainName)
+                            .resolve()));
+        }
+
+        return "BEGIN:" + TAG + "\n" +
+                "PRODID:-//" + companyName + "//" + productName + "//EN\n" +
+                "VERSION:" + version + "\n" +
+                "X-WR-CALNAME:" + name + "\n" +
+                events + "\n" +
+                "END:" + TAG;
+    }
+
+}
+

webcal/src/main/java/cn/org/codecrafters/webcal/WebCalendarEvent.java

@@ -0,0 +1,265 @@
+/*
+ * Copyright (C) 2023 CodeCraftersCN.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package cn.org.codecrafters.webcal;
+
+import cn.org.codecrafters.webcal.config.Classification;
+
+import java.time.Duration;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Optional;
+import java.util.UUID;
+
+/**
+ * WebCalendarEvent
+ *
+ * @author Zihlu Wang
+ */
+public final class WebCalendarEvent extends WebCalendarNode {
+
+    private final static String TAG = "VEVENT";
+
+    /**
+     * Add a batch of categories.
+     *
+     * @param categories A batch of categories.
+     * @return The Event instance.
+     */
+    public WebCalendarEvent addCategories(String... categories) {
+        this.categories.addAll(Arrays.asList(categories));
+        return this;
+    }
+
+    /**
+     * Add a batch of categories.
+     *
+     * @param categories A batch of categories.
+     * @return The Event instance.
+     */
+    public WebCalendarEvent addCategories(Collection<String> categories) {
+        this.categories.addAll(categories);
+        return this;
+    }
+
+    /**
+     * Add a category.
+     *
+     * @param category A category.
+     * @return The Event instance.
+     */
+    public WebCalendarEvent addCategory(String category) {
+        this.categories.add(category);
+        return this;
+    }
+
+    /**
+     * Set the classification.
+     *
+     * @param classification The specified classification value.
+     * @return The Event instance.
+     */
+    public WebCalendarEvent setClassification(Classification classification) {
+        this.classification = classification;
+        return this;
+    }
+
+    /**
+     * Set the comment.
+     *
+     * @param comment The comment.
+     * @return The Event instance.
+     */
+    public WebCalendarEvent setComment(String comment) {
+        this.comment = comment;
+        return this;
+    }
+
+    /**
+     * Set the description.
+     *
+     * @param description The description.
+     * @return The Event instance.
+     */
+    public WebCalendarEvent setDescription(String description) {
+        this.description = description;
+        return this;
+    }
+
+    /**
+     * Set the location.
+     *
+     * @param location The location.
+     * @return The Event instance.
+     */
+    public WebCalendarEvent setLocation(String location) {
+        this.location = location;
+        return this;
+    }
+
+    /**
+     * Set the percent complete value.
+     *
+     * @param percentComplete The percent complete value.
+     * @return The Event instance.
+     */
+    public WebCalendarEvent setPercentComplete(Integer percentComplete) {
+        if (percentComplete < 0 || percentComplete > 100) {
+            throw new IllegalArgumentException("Percent out of range (0 ~ 100)");
+        }
+        this.percentComplete = percentComplete;
+        return this;
+    }
+
+    /**
+     * Set a priority.
+     *
+     * @param priority The priority to be set.
+     * @return The Event instance.
+     */
+    public WebCalendarEvent setPriority(Integer priority) {
+        if (priority < 0 || priority > 9) {
+            throw new IllegalArgumentException("The priority you provide is out of range (0 ~ 9).");
+        }
+        this.priority = priority;
+        return this;
+    }
+
+    /**
+     * Set the summary.
+     *
+     * @param summary The summary (you can also call it as a title).
+     * @return The Event instance.
+     */
+    public WebCalendarEvent setSummary(String summary) {
+        this.summary = summary;
+        return this;
+    }
+
+    /**
+     * Set the end of this node.
+     *
+     * @param end The end time of this event.
+     * @return The Event instance.
+     */
+    public WebCalendarEvent setEnd(LocalDateTime end) {
+        if (this.duration != null) {
+            throw new IllegalStateException("You have set the field DURATION before, please remove it or remove setEnd.");
+        }
+        this.end = end;
+        return this;
+    }
+
+    /**
+     * Set the start of this event.
+     *
+     * @param start The date time specify the start time of this event.
+     * @return The Event instance.
+     */
+    public WebCalendarEvent setStart(LocalDateTime start) {
+        this.start = start;
+        return this;
+    }
+
+    /**
+     * Set the duration of this event.
+     *
+     * @param duration The duration of this event.
+     * @return The Event instance.
+     */
+    public WebCalendarEvent setDuration(Duration duration) {
+        if (this.end != null) {
+            throw new IllegalStateException("You have set the field END before, please remove it or remove setDuration.");
+        }
+        this.duration = duration;
+        return this;
+    }
+
+    /**
+     * Set the URL.
+     *
+     * @param url The URL.
+     * @return The Event instance.
+     */
+    public WebCalendarEvent setUrl(String url) {
+        this.url = url;
+        return this;
+    }
+
+    /**
+     * Set the uid of this event.
+     *
+     * @param uid The uid.
+     * @return The Event instance.
+     */
+    public WebCalendarEvent setUid(String uid) {
+        this.uid = uid;
+        return this;
+    }
+
+    /**
+     * Set the domain name of this event.
+     *
+     * @param domainName The domain name.
+     * @return The Event instance.
+     */
+    public WebCalendarEvent setDomainName(String domainName) {
+        this.domainName = domainName;
+        return this;
+    }
+
+    /**
+     * Set the timezone of this event.
+     *
+     * @param timezone The time zone to set.
+     * @return The Event instance.
+     */
+    public WebCalendarEvent setTimezone(String timezone) {
+        this.timezone = timezone;
+        return this;
+    }
+
+    @Override
+    public String resolve() {
+        return "\nBEGIN:" + TAG + "\n" +
+                "UID:" + Optional.ofNullable(uid).orElse(UUID.randomUUID().toString()) + "@" + domainName + "\n" +
+                Optional.ofNullable(summary).map((item) -> "SUMMARY:" + item + "\n").orElse("") +
+                "DTSTART" + Optional.ofNullable(timezone).map(item -> ";TZID=" + item).orElse("") + ":" + start.format(DateTimeFormatter.ISO_LOCAL_DATE_TIME) + "\n" +
+                Optional.ofNullable(categories)
+                        .map((item) -> {
+                            if (!item.isEmpty()) {
+                                return "CATEGORIES:" + resolveCategories() + "\n";
+                            }
+                            return null;
+                        }).orElse("") +
+                Optional.ofNullable(duration)
+                        .map((item) -> "DURATION:PT" + item.getSeconds() + "S\n").orElse("") +
+                Optional.ofNullable(end)
+                        .map((item) -> "DTEND:" + end.format(DateTimeFormatter.ISO_LOCAL_DATE_TIME) + "\n").orElse("") +
+                Optional.ofNullable(classification)
+                        .map((item) -> "CLASS:" + item.getClassification() + "\n").orElse("") +
+                Optional.ofNullable(comment).map((item) -> "COMMENT:" + item + "\n").orElse("") +
+                Optional.ofNullable(description).map((item) -> "DESCRIPTION:" + item + "\n").orElse("") +
+                Optional.ofNullable(location).map((item) -> "LOCATION:" + item + "\n").orElse("") +
+                Optional.ofNullable(percentComplete).map((item) -> "PERCENT-COMPLETE:" + item + "\n").orElse("") +
+                Optional.ofNullable(priority).map((item) -> "PRIORITY:" + item + "\n").orElse("") +
+                "END:" + TAG + "\n";
+    }
+
+}

webcal/src/main/java/cn/org/codecrafters/webcal/WebCalendarNode.java

@@ -0,0 +1,282 @@
+/*
+ * Copyright (C) 2023 CodeCraftersCN.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package cn.org.codecrafters.webcal;
+
+import cn.org.codecrafters.webcal.config.Classification;
+
+import java.time.Duration;
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * WebCalendarNode
+ *
+ * @author Zihlu Wang
+ */
+public abstract sealed class WebCalendarNode
+        permits WebCalendarEvent {
+
+    /**
+     * <p>
+     * Categories, is used to specify categories or subtypes of the calendar component. The categories are useful in
+     * searching for a calendar component of a particular type and category.
+     * </p>
+     *
+     * Template:
+     * <pre>CATEGORIES:APPOINTMENT,EDUCATION</pre>
+     * <pre>CATEGORIES:MEETING</pre>
+     *
+     * <p>Referenced from <a href="https://icalendar.org/iCalendar-RFC-5545/3-8-1-2-categories.html"
+     * >RFC-5545 - 3.8.1.2. Categories</a></p>
+     */
+    protected List<String> categories;
+
+    /**
+     * <p>
+     * Classification, An access classification is only one component of the general security system within a calendar
+     * application. It provides a method of capturing the scope of the access the calendar owner intends for information
+     * within an individual calendar entry.
+     * </p>
+     *
+     * Template:
+     * <pre>CLASS:protected</pre>
+     *
+     * <p>Referenced from <a href="https://icalendar.org/iCalendar-RFC-5545/3-8-1-3-classification.html"
+     * >RFC-5545 - 3.8.1.3. Classification</a></p>
+     */
+    protected Classification classification;
+
+    /**
+     * <p>
+     * Comment, is used to specify a comment to the calendar user.
+     * </p>
+     *
+     * Template:
+     * <pre>
+     * COMMENT:The meeting really needs to include both ourselves
+     * and the customer. We can't hold this meeting without them.
+     * As a matter of fact\, the venue for the meeting ought to be at
+     * their site. - - John
+     * </pre>
+     *
+     * <p>Referenced from <a href="https://icalendar.org/iCalendar-RFC-5545/3-8-1-4-comment.html"
+     * >RFC-5545 - 3.8.1.4. Comment</a></p>
+     */
+    protected String comment;
+
+    /**
+     * <p>
+     * Description is used in the {@link WebCalendarEvent} and <em>to-do</em> to capture lengthy extual descriptions associated with
+     * the activity.
+     * </p>
+     * <p>
+     * Description is used in the <em>Journal</em> calendar component to capture one or more textual journal entries.
+     * </p>
+     * <p>
+     * Description is used in the <em>Alarm</em> calendar component to capture the display text for a DISPLAY category of
+     * alarm, and to capture the body text for an EMAIL category of alarm.
+     * </p>
+     *
+     * Template:
+     * <pre>
+     * DESCRIPTION:Meeting to provide technical review for "Phoenix"
+     * design.\nHappy Face Conference Room. Phoenix design team
+     * MUST attend this meeting.\nRSVP to team leader.
+     * </pre>
+     *
+     * <p>Referenced from <a href="https://icalendar.org/iCalendar-RFC-5545/3-8-1-5-description.html"
+     * >RFC-5545 - 3.8.1.5. Description</a></p>
+     */
+    protected String description;
+
+
+
+    /**
+     * <p>
+     * Location, Specific venues such as conference or meeting rooms may be explicitly specified using this property.
+     * </p>
+     *
+     * <p>
+     * <b>Note</b><br>
+     * This location has not implement the URI of the location.
+     * </p>
+     *
+     * Template:
+     * <pre>LOCATION:Conference Room - F123\, Bldg. 002</pre>
+     * <pre>LOCATION;ALTREP="http://xyzcorp.com/conf-rooms/f123.vcf":
+     *      Conference Room - F123\, Bldg. 002</pre>
+     *
+     * <p>Referenced from <a href="https://icalendar.org/iCalendar-RFC-5545/3-8-1-7-location.html"
+     * >RFC-5545 - 3.8.1.7. Location</a></p>
+     */
+    protected String location;
+
+
+
+    /**
+     * <p>
+     * Percent Complete, is a positive integer between 0 and 100. A value of "0" indicates the to-do has not yet been
+     * started. A value of "100" indicates that the to-do has been completed. Integer values in between indicate the
+     * percent partially complete.
+     * </p>
+     *
+     * Template:
+     * <pre>PERCENT-COMPLETE:39</pre>
+     *
+     * <p>Referenced from <a href="https://icalendar.org/iCalendar-RFC-5545/3-8-1-8-percent-complete.html"
+     * >RFC-5545 - 3.8.1.8. Percent Complete</a></p>
+     */
+    protected Integer percentComplete;
+
+
+
+    /**
+     * <p>
+     * Priority, is specified as an integer in the range 0 to 9. A value of 0 specifies an undefined priority. A value
+     * of 1 is the highest priority. A value of 2 is the second-highest priority. Subsequent numbers specify a
+     * decreasing ordinal priority. A value of 9 is the lowest priority.
+     * </p>
+     *
+     * Example:
+     * <ul style="list-style-type: none;">
+     *     <li>
+     *         The following is an example of a property with the highest priority:
+     *         <pre>PRIORITY:1</pre>
+     *     </li>
+     *     <li>
+     *         The following is an example of a property with a next highest priority:
+     *         <pre>PRIORITY:2</pre>
+     *     </li>
+     * </ul>
+     */
+    protected Integer priority;
+
+
+
+    /**
+     * <p>
+     * Summary, is used to capture a short, one-line summary about the activity or journal entry.
+     * </p>
+     *
+     * Example:
+     * <pre>SUMMARY:Department Party</pre>
+     */
+    protected String summary;
+
+
+
+    // /**
+    //  * Completed defines the date and time that a to-do was actually completed.
+    //  *
+    //  * <p>
+    //  * Example:
+    //  * <pre>COMPLETED:19960401T150000Z</pre>
+    //  * </p>
+    //  */
+    // protected DateTime completed;
+    //
+    // /**
+    //  * Set the specific time of the completion of this to-do event.
+    //  *
+    //  * @param completed The complete time.
+    //  */
+    // protected void setCompleted(DateTime completed) {
+    //     this.completed = completed;
+    // }
+
+    /**
+     * End defines the date and time by which the event ends.
+     *
+     * Example:
+     * <pre>DTEND:19960401T150000Z</pre>
+     * <pre>DTEND;VALUE=DATE:19980704</pre>
+     */
+    protected LocalDateTime end;
+
+
+
+    /**
+     * Start defines the start date and time for the event.
+     *
+     * Example:
+     * <pre>DTSTART:19980118T073000Z</pre>
+     * <pre>DTSTART;VALUE=DATE:19980118</pre>
+     */
+    protected LocalDateTime start;
+
+
+
+    /**
+     * Duration may be used to specify a duration of the event, instead of an explicit end DATE-TIME.
+     *
+     * Example:
+     * <pre>DURATION:PT100000S</pre>
+     */
+    protected Duration duration;
+
+
+
+    /**
+     * URL may be used in a calendar component to convey a location where a more dynamic rendition of the calendar
+     * information associated with the calendar component can be found.
+     *
+     * Example:
+     * <pre>URL:http://example.com/pub/calendars/jsmith/mytime.ics</pre>
+     */
+    protected String url;
+
+    protected String uid;
+
+    protected String domainName;
+
+    protected String timezone;
+
+
+
+    //
+    // Constructors
+    //
+    protected WebCalendarNode() {
+        this.categories = new ArrayList<>();
+    }
+
+    public WebCalendarNode setDomainName(String domainName) {
+        this.domainName = domainName;
+        return this;
+    }
+
+    //
+    // Protected methods
+    //
+    protected String resolveCategories() {
+        var builder = new StringBuilder();
+        if (categories != null && !categories.isEmpty()) {
+            categories.forEach(item -> builder.append(item).append(","));
+            return builder.substring(0, builder.length() - 1);
+        }
+        return builder.toString();
+    }
+
+    //
+    // Abstract methods
+    //
+    public abstract String resolve();
+
+}
+

webcal/src/main/java/cn/org/codecrafters/webcal/config/Classification.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2023 CodeCraftersCN.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package cn.org.codecrafters.webcal.config;
+
+/**
+ * WebCalClassification
+ *
+ * @author Zihlu Wang
+ */
+public enum Classification {
+
+    PUBLIC("PUBLIC"),
+
+    PRIVATE("PRIVATE"),
+
+    CONFIDENTIAL("CONFIDENTIAL"),
+    ;
+
+    private final String classification;
+
+    Classification(String classification) {
+        this.classification = classification;
+    }
+
+    public String getClassification() {
+        return classification;
+    }
+}

webcal/src/test/java/cn/org/codecrafters/webcal/test/TestWebCalendar.java

@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2023 CodeCraftersCN.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package cn.org.codecrafters.webcal.test;
+
+import cn.org.codecrafters.webcal.WebCalendar;
+import cn.org.codecrafters.webcal.WebCalendarEvent;
+import cn.org.codecrafters.webcal.config.Classification;
+import lombok.extern.slf4j.Slf4j;
+import org.junit.jupiter.api.Test;
+
+import java.time.LocalDateTime;
+import java.util.UUID;
+
+/**
+ * TestWebCalendar
+ *
+ * @author Zihlu Wang
+ */
+@Slf4j
+public class TestWebCalendar {
+
+    @Test
+    void testWebCalendar() {
+        var calendar = new WebCalendar();
+        calendar.setCompanyName("Code Crafters")
+                .setDomainName("codecrafters.org.cn")
+                .setName("Code Crafters SPECIAL EVENT")
+                .setProductName("Code Crafters SPECIAL EVENT");
+
+        calendar.addEvent(new WebCalendarEvent()
+                .setClassification(Classification.PUBLIC)
+                .setStart(LocalDateTime.of(2023, 8, 6, 0, 0, 0))
+                .setEnd(LocalDateTime.of(2023, 8, 6, 8, 0, 0))
+                .setLocation("湖南省长沙市天心区碧云路60号")
+                .setUid(UUID.randomUUID().toString())
+                .setTimezone("Asia/Hong_Kong"));
+
+        System.out.println(calendar.resolve());
+    }
+
+}