1 files changed, 64 insertions, 2 deletions

diff --git a/frontend/src/components/hooks/useFetchPaste.js b/frontend/src/components/hooks/useFetchPaste.js
index a61ca1e..c394f5b 100644
--- a/frontend/src/components/hooks/useFetchPaste.js
+++ b/frontend/src/components/hooks/useFetchPaste.js
@@ -1,5 +1,67 @@
-import React from 'react'
+import {useEffect, useState} from 'react'
+import {fetchPaste, fmtDateStr} from './shared'
+import {LANGS} from "../renderers/Code";
 
-export default () => {
+export default (id) => {
+  const [loading, setLoading] = useState(true)
+  const [err, setErr] = useState()
+  const [requiresAuth, setRequiresAuth] = useState(false)
+  const [validPass, setValidPass] = useState(false)
+  const [result, setResult] = useState({
+    title: 'fetching paste...',
+    content: '',
+    language: LANGS.detect,
+    expiry: '',
+  })
 
+  const handleErr = error => {
+    const resp = error.response
+
+    // network err
+    if (!resp) {
+      setErr(error.toString())
+      return
+    }
+
+    // password protected
+    if (resp.status === 401) {
+      setRequiresAuth(true)
+      return
+    }
+
+    // catch all
+    const errTxt = `${resp.status}: ${resp.data}`
+    setErr(errTxt)
+  }
+
+  // callback to try verifying with password
+  const getWithPassword = (password, errorCallback) => {
+    fetchPaste(id, password)
+      .then(resp => {
+        setValidPass(true)
+        setStateFromData(resp.data)
+      })
+      .catch(e => errorCallback(e.response.data))
+  }
+
+
+  const setStateFromData = (data) => {
+    document.title = data.title
+    setResult({
+      title: data.title,
+      content: data.content,
+      language: data.language,
+      expiry: fmtDateStr(data.expiry)
+    })
+  }
+
+  // initial fetch
+  useEffect(() => {
+    fetchPaste(id)
+      .then(resp => setStateFromData(resp.data))
+      .catch(handleErr)
+      .finally(() => setLoading(false))
+  }, [id])
+
+  return { loading, err, requiresAuth, validPass, getWithPassword, result }
 }
\ No newline at end of file