modify database schema

libs/line-message/commands/group.js

@@ -0,0 +1,110 @@
+/**
+ * add group to database
+ * @param {string} txt command body format => groupName notifyEnable(0,1)
+ * @param {object} source
+ * @param {object} db
+ */
+const addGroup = async (txt, source = {}, db) => {
+  if (!db) return null
+  if (!('type' in source) || !('groupId' in source) || !('userId' in source)) return null
+  let {groupId, userId} = source
+  let arr = txt.split(' ')
+  if (arr.length < 2 || !isFinite(arr[1])) return null
+  let name = arr[0]
+  let notify = arr[1]
+  if (typeof notify === 'string') notify = parseInt(notify)
+  if (notify !== 0 && notify !== 1) return null
+  let text = `select "id" from "public"."line_group" where "id" = $1`
+  let values = [groupId]
+  let result = await db.query({
+    text,
+    values
+  })
+  if (result.rowCount > 0) {
+    let reply = 'group exists'
+    return { reply }
+  }
+  text = `insert into "public"."line_group" ("id", "name", "notify", "owner", "ctime", "mtime") values ($1, $2, $3, $4, now(), now())`
+  values = [groupId, name, (notify === 1), userId]
+  await db.query({
+    text,
+    values
+  })
+  let reply = 'add success'
+  return { reply }
+}
+
+/**
+ * add facebook page notify to group
+ * @param {string} txt command body format => pageid name tmpl
+ * @param {object} source
+ * @param {object} db
+ */
+const addPage = async (txt, source = {}, db) => {
+  if (!db) return null
+  if (!('type' in source) || !('groupId' in source) || !('userId' in source)) return null
+  let {groupId, userId} = source
+  let arr = txt.split(' ')
+  if (arr.length < 3) return null
+  let page = arr[0]
+  let name = arr[1]
+  let tmpl = arr.slice(2).join(' ')
+  let text = `select "id","owner" from "public"."line_group" where "id" = $1`
+  let values = [groupId]
+  let result = await db.query({
+    text,
+    values
+  })
+  if (result.rowCount === 0) {
+    let reply = 'group not register'
+    return { reply }
+  }
+  if (result.rows[0].owner !== userId) {
+    let reply = 'not owner'
+    return { reply }
+  }
+  // check pageid in group
+  text = `select fb."id" from "public"."facebook_page" fb
+    left join "public"."line_group" line
+    on fb."groupid" = line."id"
+    where
+    fb."pageid" = $1`
+  values = [page]
+  result = await db.query({
+    text,
+    values
+  })
+  if (result.rowCount > 0) {
+    let reply = 'page exists'
+    return { reply }
+  }
+  // check page name in group
+  text = `select fb."id" from "public"."facebook_page" fb
+    left join "public"."line_group" line
+    on fb."groupid" = line."id"
+    where
+    fb."name" = $1`
+  values = [name]
+  result = await db.query({
+    text,
+    values
+  })
+  if (result.rowCount > 0) {
+    let reply = 'page name exists'
+    return { reply }
+  }
+  text = `insert into "public"."facebook_page" ("groupid", "pageid", "name", "tmpl", "ctime", "mtime") values 
+    ($1, $2, $3, $4, now(), now())`
+  values = [groupId, page, name, tmpl]
+  await db.query({
+    text,
+    values
+  })
+  let reply = 'add page success'
+  return { reply }
+}
+
+module.exports = {
+  addgroup: addGroup,
+  addpage: addPage
+}

libs/line-message/commands/index.js

@@ -0,0 +1,31 @@
+const DB = require('../../database')
+const groupCMD = require('./group')
+
+const cmds = {}
+
+for (let i in groupCMD) {
+  cmds[i] = groupCMD[i]
+}
+
+const parseCMD = async (text = '', source = {}) => {
+  if (typeof text !== 'string' || text.trim().length === 0) return null
+  if (!source || typeof source !== 'object' || !('type' in source)) return null
+  let txt = text.trim()
+  let arr = txt.split(' ').map(t => t.trim())
+  if (arr.length === 0) return null
+  if (arr[0][0] !== '!') return null
+  let cmd = arr[0].replace(/^!/, '')
+  if (!(cmd in cmds)) return null
+  let db = await DB.connect()
+  let result = null
+  try {
+    result = await cmds[cmd](arr.slice(1).join(' '), source, db)
+  } catch (err) {
+    console.log(err)
+  }
+  // if (result === null) return null
+  db.release()
+  return result
+}
+
+module.exports = parseCMD