Markdown PlantUML 图表

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@startuml
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start
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:用户提交订单;
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if (库存充足?) then (是)
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  :冻结库存;
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  :创建支付单;
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  if (支付成功?) then (是)
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    :生成发货单;
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    :通知仓库拣货;
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  else (否)
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    :取消订单;
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    :释放库存;
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  endif
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else (否)
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  :提示缺货;
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endif
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stop
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@enduml

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@startuml
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[*] --> 草稿
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草稿 --> 待审核 : 提交
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待审核 --> 草稿 : 驳回
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待审核 --> 已发布 : 审核通过
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已发布 --> 已归档 : 到期归档
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已发布 --> 草稿 : 撤回修改
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state 已发布 {
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  [*] --> 可见
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  可见 --> 隐藏 : 手动隐藏
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  隐藏 --> 可见 : 恢复展示
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}
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已归档 --> [*]
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@enduml

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@startuml
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left to right direction
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actor 游客
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actor 用户
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actor 管理员
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rectangle 博客系统 {
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  usecase "浏览文章" as UC1
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  usecase "搜索内容" as UC2
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  usecase "发表评论" as UC3
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  usecase "点赞收藏" as UC4
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  usecase "审核评论" as UC5
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  usecase "发布文章" as UC6
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}
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游客 --> UC1
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游客 --> UC2
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用户 --> UC1
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用户 --> UC2
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用户 --> UC3
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用户 --> UC4
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管理员 --> UC5
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管理员 --> UC6
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@enduml

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@startuml
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package "Firefly Site" {
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  [Astro App] as App
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  [Markdown Parser] as Parser
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  [PlantUML Encoder] as Encoder
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  [Theme Switcher] as Theme
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  [Search Indexer] as Search
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}
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cloud "PlantUML Server" as PU
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database "Content Store" as Content
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App --> Parser : parse markdown
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Parser --> Encoder : encode plantuml blocks
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Encoder --> PU : request svg
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App --> Theme : switch dark/light src
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App --> Search : build page index
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Parser --> Content : read posts
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@enduml

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@startuml
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node "User Device" {
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  artifact "Browser"
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}
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node "CDN / Edge" {
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  artifact "Static Assets"
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}
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node "Cloudflare Worker" {
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  artifact "SSR Handler"
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}
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node "PlantUML Service" {
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  artifact "SVG Renderer"
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}
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database "Object Storage" {
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  artifact "Markdown Content"
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}
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"Browser" --> "Static Assets" : GET js/css/img
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"Browser" --> "SSR Handler" : request page
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"SSR Handler" --> "Markdown Content" : read post
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"Browser" --> "SVG Renderer" : fetch diagram svg
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@enduml

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@startuml
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entity User {
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  *id : uuid <<PK>>
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  --
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  username : varchar
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  email : varchar
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  created_at : datetime
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}
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entity Post {
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  *id : uuid <<PK>>
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  --
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  author_id : uuid <<FK>>
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  title : varchar
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  content : text
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  published_at : datetime
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}
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entity Comment {
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  *id : uuid <<PK>>
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  --
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  post_id : uuid <<FK>>
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  user_id : uuid <<FK>>
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  body : text
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  created_at : datetime
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}
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User ||--o{ Post : writes
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User ||--o{ Comment : creates
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Post ||--o{ Comment : has
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@enduml

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@startuml
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autonumber
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actor User as 用户
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participant Web as 前端页面
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participant API as 网关接口
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participant Auth as 认证服务
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database Redis as 会话缓存
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用户 -> 前端页面 : 输入账号密码并提交
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前端页面 -> 网关接口 : POST /login
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网关接口 -> 认证服务 : 校验凭据
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认证服务 -> 会话缓存 : 写入 refresh_token
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认证服务 --> 网关接口 : access_token + refresh_token
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网关接口 --> 前端页面 : 200 登录成功
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... access_token 过期 ...
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前端页面 -> 网关接口 : POST /refresh
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网关接口 -> 认证服务 : 校验 refresh_token
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认证服务 -> 会话缓存 : 轮换 refresh_token
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认证服务 --> 网关接口 : 新 access_token
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网关接口 --> 前端页面 : 200 新令牌
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@enduml

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@startuml
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!includeurl https://raw.githubusercontent.com/plantuml-stdlib/C4-PlantUML/master/C4_Container.puml
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Person(user, "博客访客", "阅读文章与搜索内容")
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System_Boundary(system, "Firefly Blog") {
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  Container(web, "Web App", "Astro + Svelte", "渲染页面与交互")
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  Container(worker, "SSR Worker", "Cloudflare Workers", "处理服务端渲染请求")
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  ContainerDb(content, "Content Store", "Markdown / Object Storage", "存储文章与资源元数据")
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  Container(search, "Search Index", "Pagefind", "提供全文检索")
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}
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System_Ext(plantuml, "PlantUML Server", "生成 SVG 图表")
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Rel(user, web, "访问", "HTTPS")
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Rel(web, worker, "请求 SSR 页面", "HTTPS")
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Rel(worker, content, "读取文章")
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Rel(web, search, "查询关键词")
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Rel(web, plantuml, "请求图表 SVG")
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LAYOUT_LEFT_RIGHT()
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@enduml