add get line msg log api

route/api/index.js

@@ -5,7 +5,9 @@ const {
   resObject,
   APIError,
   genError,
-  checkSession
+  checkSession,
+  calPage,
+  toInt
 } = require('@libs/route-utils')
 const DB = require('@libs/database')
 const r = new Router()
@@ -67,6 +69,36 @@ r.get('/session', checkSession, async (c, n) => {
   })
 })
 
+r.get('/line_msg', checkSession, async (c, n) => {
+  let p = toInt(c.query.p, 1, 1)
+
+  let text = `select count(*) as c from "public"."line_message_log"`
+  let msgCount = await c.db.query({text})
+  if (msgCount.rowCount === 0) throw genError('InternalError', 'database query fail')
+  if (!('c' in msgCount.rows[0])) throw genError('InternalError', 'database query fail')
+  let page = calPage(msgCount.rows[0].c, p, 20)
+  text = `select g.name, u.name as user, m.message, m.ctime from "public"."line_message_log" m
+    left join "public"."line_group" g
+    on g.id = m.group
+    left join "public"."line_user" u
+    on u.id = m.user
+    order by m.ctime desc
+    offset $1
+    limit $2`
+  let values = [page.offset, page.limit]
+  let msgData = await c.db.query({
+    text,
+    values
+  })
+  c.obj = resObject('Success', {
+    messages: msgData.rows,
+    page: {
+      cur: page.page,
+      total: page.totalPage
+    }
+  })
+})
+
 r.use('/twitch', require('./twitch').routes())
 
 module.exports = r