CREATE TABLE posts
(
    id           INTEGER PRIMARY KEY GENERATED ALWAYS AS IDENTITY,
    title        TEXT        NOT NULL,
    cover_id     INTEGER,
    slug         TEXT UNIQUE NOT NULL,
    content      TEXT       NOT NULL,
    summary      TEXT        NOT NULL,
    status       SMALLINT    NOT NULL DEFAULT 1,
    view         INTEGER              DEFAULT 0,
    sort         INTEGER              DEFAULT 0,
    published_at TIMESTAMPTZ   NOT NULL DEFAULT NOW(),
    created_at   TIMESTAMPTZ   NOT NULL DEFAULT NOW(),
    updated_at   TIMESTAMPTZ,

    CHECK (status IN (0, 1, 2))
);

CREATE TRIGGER update_posts_updated_at
    BEFORE UPDATE
    ON posts
    FOR EACH ROW
EXECUTE FUNCTION update_updated_at_column();


COMMENT ON COLUMN posts.id IS '主键ID';
COMMENT ON COLUMN posts.title IS '文章标题';
COMMENT ON COLUMN posts.cover_id IS '文章封面图片id';
COMMENT ON COLUMN posts.slug IS 'URL友好地址';
COMMENT ON COLUMN posts.content IS '文章正文';
COMMENT ON COLUMN posts.summary IS '摘要';
COMMENT ON COLUMN posts.status IS '状态 0:草稿 1:已发布 2:已下线';
COMMENT ON COLUMN posts.view IS '阅读量';
COMMENT ON COLUMN posts.sort IS '文章排序';
COMMENT ON COLUMN posts.published_at IS '发布时间';
COMMENT ON COLUMN posts.created_at IS '创建时间';
COMMENT ON COLUMN posts.updated_at IS '修改时间';

-- 批量插入菜单及关联权限
WITH input(name, path, component, type, sort, status, code)
         AS (VALUES ('文章管理', '/post', '/blog/post/index', 1, 6, 1, 'post'),
                    ('文章编辑', '/post/edit', '/blog/post-edit/index', 1, 7, 1, 'post:edit')
             ),
     -- 插入菜单
     inserted_menus AS (
         INSERT INTO sys_menus (name, path, component, type, sort, status)
             SELECT name, path, component, type, sort, status FROM input RETURNING id),
     menu_rows AS (SELECT id, ROW_NUMBER() OVER () AS rn FROM inserted_menus),
     -- 插入权限
     inserted_permissions AS (
         INSERT INTO sys_permissions (type, code)
             SELECT 0, code FROM input RETURNING id),
     permission_rows AS (SELECT id, ROW_NUMBER() OVER () AS rn FROM inserted_permissions)
-- 关联权限
INSERT
INTO sys_menu_permission(menu_id, permission_id)
SELECT m.id, p.id
FROM menu_rows m
         JOIN permission_rows p ON m.rn = p.rn;

-- 批量插入接口及关联权限
WITH inserted_apis AS (
-- 插入菜单
    INSERT INTO sys_apis (group_name, name, method, path)
        VALUES ('文章管理', '文章列表', 'GET', '/admin/post'),
               ('文章管理', '创建文章', 'POST', '/admin/post'),
               ('文章管理', '修改文章', 'PATCH', '/admin/post/{id}'),
               ('文章管理', '删除文章', 'DELETE', '/admin/post/{id}')
        RETURNING id),
     api_rows AS (SELECT id, ROW_NUMBER() OVER () AS rn
                  FROM inserted_apis),
     -- 创建权限
     inserted_permissions AS (
         INSERT INTO sys_permissions (type)
             SELECT 1 FROM api_rows RETURNING id),
     permission_rows AS (SELECT id, ROW_NUMBER() OVER () AS rn
                         FROM inserted_permissions)
INSERT
INTO sys_api_permission(api_id, permission_id)
SELECT a.id, b.id
FROM api_rows a
         INNER JOIN permission_rows b ON a.rn = b.rn;