func (docstore *DocStoreExt) Insert(collection string, idoc interface{}) (*id.ID, error) {
switch doc := idoc.(type) {
case *map[string]interface{}:
// fdoc := *doc
docFlag := FlagNoIndex
// docFlag = FlagIndexed
blob, err := json.Marshal(doc)
if err != nil {
return nil, err
}
// FIXME(tsileo): What to do if there's an empty ID?
// Store the payload in a blob
hash := fmt.Sprintf("%x", blake2b.Sum256(blob))
docstore.blobStore.Put(hash, blob)
// Create a pointer in the key-value store
now := time.Now().UTC().Unix()
_id, err := id.New(int(now))
if err != nil {
return nil, err
}
bash := make([]byte, len(hash)+1)
bash[0] = docFlag
copy(bash[1:], []byte(hash)[:])
if _, err := docstore.kvStore.Put(fmt.Sprintf(KeyFmt, collection, _id.String()), string(bash), -1); err != nil {
return nil, err
}
// Returns the doc along with its new ID
// if err := docstore.index.Index(_id.String(), doc); err != nil {
// return err
// }
_id.SetHash(hash)
return _id, nil
}
return nil, fmt.Errorf("shouldn't happen")
}
func setCustomGlobals(L *luamod.LState) {
// Return the server unix timestamp
L.SetGlobal("unix", L.NewFunction(func(L *luamod.LState) int {
L.Push(luamod.LNumber(time.Now().Unix()))
return 1
}))
// Generate a random hexadecimal ID with the current timestamp as first 4 bytes,
// this means keys will be sorted by creation date automatically if sorted lexicographically
L.SetGlobal("hexid", L.NewFunction(func(L *luamod.LState) int {
id, err := hexid.New(int(time.Now().UTC().Unix()))
if err != nil {
panic(err)
}
L.Push(luamod.LString(id.String()))
return 1
}))
// Compute the Blake2B hash for the given string
L.SetGlobal("blake2b", L.NewFunction(func(L *luamod.LState) int {
hash := fmt.Sprintf("%x", blake2b.Sum256([]byte(L.ToString(1))))
L.Push(luamod.LString(hash))
return 1
}))
// Sleep for the given number of seconds
L.SetGlobal("sleep", L.NewFunction(func(L *luamod.LState) int {
time.Sleep(time.Duration(float64(L.ToNumber(1)) * float64(1e9)))
return 0
}))
// Convert the given Markdown to HTML
L.SetGlobal("markdownify", L.NewFunction(func(L *luamod.LState) int {
output := blackfriday.MarkdownCommon([]byte(L.ToString(1)))
L.Push(luamod.LString(string(output)))
return 1
}))
// Render execute a Go HTML template, data must be a table with string keys
L.SetGlobal("render", L.NewFunction(func(L *luamod.LState) int {
tplString := L.ToString(1)
data := luautil.TableToMap(L.ToTable(2))
tpl, err := template.New("tpl").Parse(tplString)
if err != nil {
L.Push(luamod.LString(err.Error()))
return 1
}
// TODO(tsileo) add some templatFuncs/template filter
out := &bytes.Buffer{}
if err := tpl.Execute(out, data); err != nil {
L.Push(luamod.LString(err.Error()))
return 1
}
L.Push(luamod.LString(out.String()))
return 1
}))
// TODO(tsileo) a urljoin?
// Return an absoulte URL for the given path
L.SetGlobal("url", L.NewFunction(func(L *luamod.LState) int {
// FIXME(tsileo) take the host from the req?
L.Push(luamod.LString("http://localhost:8050" + L.ToString(1)))
return 1
}))
}