minpkg/lib/min_dstore.nim
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import
std/[json,
strutils,
oids]
import
../core/parser,
../core/value,
../core/interpreter,
../core/utils
proc dstore_module*(i: In) =
let def = i.define()
def.symbol("init") do (i: In):
let vals = i.expect("'sym")
let p = vals[0].getString
p.writeFile("{}")
var d = newDict(i.scope)
i.dset(d, "data", newDict(i.scope))
i.dset(d, "path", p.newVal)
d.objType = "datastore"
i.push d
def.symbol("read") do (i: In):
let vals = i.expect("'sym")
let p = vals[0].getString
var j = p.readFile.parseJson
var d = newDict(i.scope)
i.dset(d, "data", i.fromJson(j))
i.dset(d, "path", p.newVal)
d.objType = "datastore"
i.push d
def.symbol("write") do (i: In):
let vals = i.expect("dict:datastore")
let ds = vals[0]
let p = i.dget(ds, "path".newVal).getString
let data = i%(i.dget(ds, "data".newVal))
p.writeFile(data.pretty)
i.push ds
def.symbol("has?") do (i: In):
let vals = i.expect("'sym", "dict:datastore")
let s = vals[0].getString
let ds = vals[1]
let parts = s.split("/")
let collection = parts[0]
let id = parts[1]
let data = i.dget(ds, "data".newVal)
if not dhas(data, collection):
i.push false.newVal
else:
let cll = i.dget(data, collection.newVal)
if dhas(cll, id.newVal):
i.push true.newVal
else:
i.push false.newVal
def.symbol("get") do (i: In):
let vals = i.expect("'sym", "dict:datastore")
let s = vals[0].getString
let ds = vals[1]
let parts = s.split("/")
let collection = parts[0]
let id = parts[1]
let data = i.dget(ds, "data".newVal)
if not dhas(data, collection):
raiseInvalid("Collection '$#' does not exist" % collection)
let cll = i.dget(data, collection)
i.push i.dget(cll, id.newVal)
def.symbol("query") do (i: In):
let vals = i.expect("quot", "'sym", "dict:datastore")
var filter = vals[0]
let collection = vals[1]
let ds = vals[2]
let data = i.dget(ds, "data".newVal)
var res = newSeq[MinValue](0)
if not dhas(data, collection):
i.push res.newVal
return
let cll = i.dget(data, collection)
for e in i.values(cll).qVal:
i.push e
try:
i.dequote(filter)
var check = i.pop
if check.isBool and check.boolVal == true:
res.add e
except CatchableError:
discard
i.push res.newVal
def.symbol("post") do (i: In):
let vals = i.expect("dict", "'sym", "dict:datastore")
var d = vals[0]
let collection = vals[1]
var ds = vals[2]
let id = $genOid()
i.dset(d, "id", id.newVal)
var data = i.dget(ds, "data".newVal)
if not dhas(data, collection):
i.dset(data, collection, newDict(i.scope))
var cll = i.dget(data, collection)
i.dset(cll, id, d)
i.push ds
def.symbol("put") do (i: In):
let vals = i.expect("dict", "'sym", "dict:datastore")
var d = vals[0]
let s = vals[1].getString
let ds = vals[2]
let parts = s.split("/")
let collection = parts[0]
if parts.len < 2:
raiseInvalid("collection/id not specified")
let id = parts[1]
var data = i.dget(ds, "data".newVal)
if not dhas(data, collection):
i.dset(data, collection, newDict(i.scope))
var cll = i.dget(data, collection)
i.dset(cll, id, d)
i.push ds
def.symbol("delete") do (i: In):
let vals = i.expect("'sym", "dict:datastore")
let s = vals[0].getString
let ds = vals[1]
let parts = s.split("/")
if parts.len < 2:
raiseInvalid("collection/id not specified")
let collection = parts[0]
let id = parts[1]
var data = i.dget(ds, "data".newVal)
if not dhas(data, collection):
raiseInvalid("Collection '$#' does not exist" % collection)
var cll = i.dget(data, collection)
i.ddel(cll, id)
i.push ds
def.finalize("dstore")
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