@instantdb/core
Version:
Instant's core local abstraction
1,858 lines • 234 kB
JavaScript
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function mt(n) {
for (const e of Gr) {
const t = Hr(e, n);
if (t)
return t;
}
return null;
}
function Jr(n) {
try {
const e = JSON.parse(n);
return typeof e == "string" ? mt(e) : null;
} catch {
return null;
}
}
function et(n) {
if (n !== void 0) {
if (n === null)
return null;
if (n instanceof Date)
return n;
if (typeof n == "string") {
const e = mt(n) || Jr(n) || mt(n.trim());
if (!e)
throw new Error(`Unable to parse \`${n}\` as a date.`);
return e;
} else if (typeof n == "number")
return new Date(n);
throw new Error(
`Invalid date value \`${n}\`. Expected a date, number, or string, got type ${typeof n}.`
);
}
}
class fe {
attrs;
linkIndex;
_blobAttrs = null;
_primaryKeys = null;
_forwardIdents = null;
_revIdents = null;
constructor(e, t) {
this.attrs = e, this.linkIndex = t;
}
resetAttrIndexes() {
this._blobAttrs = null, this._primaryKeys = null, this._forwardIdents = null, this._revIdents = null;
}
addAttr(e) {
this.attrs[e.id] = e, this.resetAttrIndexes();
}
deleteAttr(e) {
delete this.attrs[e], this.resetAttrIndexes();
}
updateAttr(e) {
const t = this.attrs[e.id];
t && (this.attrs[e.id] = { ...t, ...e }, this.resetAttrIndexes());
}
getAttr(e) {
return this.attrs[e];
}
get blobAttrs() {
if (this._blobAttrs)
return this._blobAttrs;
this._blobAttrs = /* @__PURE__ */ new Map();
for (const e of Object.values(this.attrs))
if (Ft(e)) {
const [t, r, s] = e["forward-identity"];
H(this.blobAttrs, [r, s], e);
}
return this._blobAttrs;
}
get primaryKeys() {
if (this._primaryKeys)
return this._primaryKeys;
this._primaryKeys = /* @__PURE__ */ new Map();
for (const e of Object.values(this.attrs))
if (e["primary?"]) {
const [t, r] = e["forward-identity"];
H(this._primaryKeys, [r], e);
}
return this._primaryKeys;
}
get forwardIdents() {
if (this._forwardIdents)
return this._forwardIdents;
this._forwardIdents = /* @__PURE__ */ new Map();
for (const e of Object.values(this.attrs)) {
const t = e["forward-identity"], [r, s, i] = t;
H(this._forwardIdents, [s, i], e);
}
return this._forwardIdents;
}
get revIdents() {
if (this._revIdents)
return this._revIdents;
this._revIdents = /* @__PURE__ */ new Map();
for (const e of Object.values(this.attrs)) {
const t = e["reverse-identity"];
if (t) {
const [r, s, i] = t;
H(this._revIdents, [s, i], e);
}
}
return this._revIdents;
}
toJSON() {
return { attrs: this.attrs, linkIndex: this.linkIndex };
}
}
function Yr(n) {
return n.cardinality === "one";
}
function Nt(n) {
return n["value-type"] === "ref";
}
function Ft(n) {
return n["value-type"] === "blob";
}
function Ie(n, e) {
return e.reduce((t, r) => t && t.get(r), n);
}
function se(n, e) {
if (e.length === 0) throw new Error("path must have at least one element");
if (e.length === 1) {
n.delete(e[0]);
return;
}
const [t, ...r] = e;
n.has(t) && se(n.get(t), r);
}
function H(n, e, t) {
let r = n;
const s = e.length - 1;
for (let i = 0; i < s; i++) {
const o = e[i];
let a = r.get(o);
a === void 0 && (a = /* @__PURE__ */ new Map(), r.set(o, a)), r = a;
}
s > -1 && r.set(e[s], t);
}
function Dn(n, e, t) {
const r = /* @__PURE__ */ new Map(), s = /* @__PURE__ */ new Map(), i = /* @__PURE__ */ new Map();
for (const o of e) {
let [a, c, u] = o;
const l = n.getAttr(c);
if (!l) {
console.warn("no such attr", c, a);
continue;
}
l["checked-data-type"] === "date" && t && (u = et(u), o[2] = u), Nt(l) && H(i, [u, c, a], o), H(r, [a, c, u], o), H(s, [c, a, u], o);
}
return { eav: r, aev: s, vae: i };
}
function Un(n) {
return {
triples: J(n.eav, 3),
cardinalityInference: n.cardinalityInference,
useDateObjects: n.useDateObjects,
version: 1
};
}
function Ln(n, e) {
return Te(
n,
e.triples,
e.cardinalityInference,
e.useDateObjects
);
}
function Nn(n, e) {
if (n)
return new fe(n.attrs, n.linkIndex);
if (e && "__type" in e)
return new fe(e.attrs, e.linkIndex);
}
function Zr(n, e) {
return Ie(n.eav, [e]) !== void 0;
}
function Te(n, e, t, r) {
const s = Dn(
n,
e,
r
);
return s.cardinalityInference = t, s.useDateObjects = r, s;
}
function Ue(n, e) {
let t;
if (Array.isArray(e[0])) {
const [s, i] = e[0], o = n.aev.get(s);
if (!o)
return null;
t = J(o, 2).find((c) => c[2] === i)?.[0];
} else
t = e[0];
if (!t)
return null;
const r = e[2];
if (Array.isArray(r) && r.length === 2 && n.aev.get(r[0])) {
const [s, i] = r, o = n.aev.get(s);
if (!o)
return null;
const c = J(o, 2).find((h) => h[2] === i)?.[0];
if (!c)
return null;
const [u, l, f, ...d] = e;
return [t, l, c, ...d];
} else {
const [s, ...i] = e;
return [t, ...i];
}
}
function Fn(n, e, t) {
const r = Ue(n, t);
if (!r)
return;
const [s, i, o] = r, a = e.getAttr(i);
a && (se(n.eav, [s, i, o]), se(n.aev, [i, s, o]), Nt(a) && se(n.vae, [o, i, s]));
}
let Xr = 0;
function Kn(n, e, t) {
const [r, s, i] = t;
let o;
const a = Ie(n.eav, [r, s, i]);
return a && (o = a[3]), o || Date.now() * 10 + Xr++;
}
function qn(n, e, t) {
const r = Ue(n, t);
if (!r)
return;
let [s, i, o] = r;
const a = e.getAttr(i);
if (!a)
return;
a["checked-data-type"] === "date" && n.useDateObjects && (o = et(o));
const u = Ie(n.eav, [s, i, o])?.[3] ?? Kn(n, a, r), l = [s, i, o, u];
Yr(a) ? (H(n.eav, [s, i], /* @__PURE__ */ new Map([[o, l]])), H(n.aev, [i, s], /* @__PURE__ */ new Map([[o, l]]))) : (H(n.eav, [s, i, o], l), H(n.aev, [i, s, o], l)), Nt(a) && H(n.vae, [o, i, s], l);
}
function es(n, e, t) {
const r = Ue(n, t);
if (!r)
return;
const [s, i, o] = r, a = e.getAttr(i);
if (!a) return;
if (!Ft(a))
throw new Error("merge operation is not supported for links");
const c = Ie(n.eav, [s, i]);
if (!c) return;
const u = c.values().next()?.value;
if (!u) return;
const l = u[2], f = xn(l, o), d = [
s,
i,
f,
Kn(n, a, u)
];
H(n.eav, [s, i], /* @__PURE__ */ new Map([[f, d]])), H(n.aev, [i, s], /* @__PURE__ */ new Map([[f, d]]));
}
function wt(n, e, t) {
const [r, s] = t, i = Ue(n, [r]);
if (!i)
return;
const [o] = i, a = n.eav.get(o);
if (a) {
for (const u of a.keys()) {
const l = e.getAttr(u);
l && l["on-delete-reverse"] === "cascade" && J(a.get(u), 1).forEach(
([f, d, h]) => wt(n, e, [h, l["reverse-identity"]?.[1]])
), // Fall back to deleting everything if we've rehydrated tx-steps from
// the store that didn't set `etype` in deleteEntity
(!s || // If we don't know about the attr, let's just get rid of it
!l || // Make sure it matches the etype
l["forward-identity"]?.[1] === s) && (se(n.aev, [u, o]), se(n.eav, [o, u]));
}
a.size === 0 && se(n.eav, [o]);
}
const c = n.vae.get(o) && J(n.vae.get(o), 2);
c && c.forEach((u) => {
const [l, f, d] = u, h = e.getAttr(f);
(!s || !h || h["reverse-identity"]?.[1] === s) && (se(n.eav, [l, f, d]), se(n.aev, [f, l, d]), se(n.vae, [d, f, l])), h && h["on-delete"] === "cascade" && h["reverse-identity"]?.[1] === s && wt(n, e, [l, h["forward-identity"]?.[1]]);
}), n.vae.get(o)?.size === 0 && se(n.vae, [o]);
}
function zn(n, e, t) {
const r = Dn(
e,
t,
n.useDateObjects
);
Object.keys(r).forEach((s) => {
n[s] = r[s];
});
}
function ts(n, [e]) {
n.addAttr(e);
}
function Wn(n) {
return J(n.eav, 3);
}
function ns(n, e, [t]) {
if (!e.getAttr(t)) return;
const r = Wn(n).filter(([s, i]) => i !== t);
e.deleteAttr(t), zn(n, e, r);
}
function rs(n, e, [t]) {
e.getAttr(t.id) && (e.updateAttr(t), zn(n, e, Wn(n)));
}
function ss(n, e, t) {
const [r, ...s] = t;
switch (r) {
case "add-triple":
qn(n, e, s);
break;
case "deep-merge-triple":
es(n, e, s);
break;
case "retract-triple":
Fn(n, e, s);
break;
case "delete-entity":
wt(n, e, s);
break;
case "add-attr":
ts(e, s);
break;
case "delete-attr":
ns(n, e, s);
break;
case "update-attr":
rs(n, e, s);
break;
case "restore-attr":
break;
case "rule-params":
break;
default:
throw new Error(`unhandled transaction action: ${r}`);
}
}
function J(n, e, t = []) {
if (!n || e === 0)
return t;
if (e === 1) {
for (const r of n.values())
t.push(r);
return t;
}
for (const r of n.values())
J(r, e - 1, t);
return t;
}
function Ne(n, e, t) {
const r = [];
if (t?.hasOwnProperty("$not")) {
for (const i of e.keys())
t.$not !== i && r.push(e.get(i));
return r;
}
if (t?.hasOwnProperty("$isNull")) {
const { attrId: i, isNull: o, reverse: a } = t.$isNull;
if (a)
for (const c of e.keys()) {
const u = n.vae.get(c), l = !u || !u.get(i);
(o ? l : !l) && r.push(e.get(c));
}
else {
const c = n.aev.get(i);
for (const u of e.keys()) {
const l = !c || c.get(u)?.get(null) || !c.get(u);
(o ? l : !l) && r.push(e.get(u));
}
}
return r;
}
if (t?.$comparator)
return J(e, 1).filter(t.$op);
const s = t.in || t.$in || [t];
for (const i of s) {
const o = e.get(i);
o && r.push(o);
}
return r;
}
function is(n, e, t) {
let r = "";
return n !== void 0 && (r += "e"), e !== void 0 && (r += "a"), t !== void 0 && (r += "v"), r;
}
function os(n, [e, t, r]) {
switch (is(e, t, r)) {
case "e": {
const i = n.eav.get(e);
return J(i, 2);
}
case "ea": {
const i = n.eav.get(e)?.get(t);
return J(i, 1);
}
case "eav": {
const i = n.eav.get(e)?.get(t);
return i ? Ne(n, i, r) : [];
}
case "ev": {
const i = n.eav.get(e);
if (!i)
return [];
const o = [];
for (const a of i.values())
o.push(...Ne(n, a, r));
return o;
}
case "a": {
const i = n.aev.get(t);
return J(i, 2);
}
case "av": {
const i = n.aev.get(t);
if (!i)
return [];
const o = [];
for (const a of i.values())
o.push(...Ne(n, a, r));
return o;
}
case "v": {
const i = [];
for (const o of n.eav.values())
for (const a of o.values())
i.push(...Ne(n, a, r));
return i;
}
default:
return J(n.eav, 3);
}
}
function as(n, e, t) {
const r = {};
if (!e)
return r;
for (const [s, i] of e.entries()) {
const o = n.eav.get(t)?.get(i.id), a = J(o, 1);
for (const c of a)
r[s] = c[2];
}
return r;
}
function U(n, e, t) {
return n.forwardIdents.get(e)?.get(t);
}
function ge(n, e, t) {
return n.revIdents.get(e)?.get(t);
}
function cs(n, e) {
return n.blobAttrs.get(e);
}
function Vn(n, e) {
const t = n.primaryKeys.get(e);
return t || n.forwardIdents.get(e)?.get("id");
}
function us(n, e, t) {
const r = Ue(n, t);
if (!r)
return;
const [s, i, o] = r;
if (e.getAttr(i))
return Ie(n.eav, [s, i]);
}
function ls(n, e, t) {
const r = t.filter(
([s, i, o, a, c]) => {
if (s !== "add-triple" && s !== "deep-merge-triple")
return !0;
const u = c?.mode;
if (u !== "create" && u !== "update")
return !0;
let l = !1;
const f = e.getAttr(o);
if (f) {
const d = Vn(
e,
f["forward-identity"][1]
);
l = !!us(n, e, [
i,
d?.id,
i
]);
}
return !(u === "create" && l || u === "update" && !l);
}
);
return Ye(
{ store: n, attrsStore: e },
(s) => {
r.forEach((i) => {
ss(s.store, s.attrsStore, i);
});
},
{
mark: (s) => {
if (s instanceof fe)
return "immutable";
}
}
);
}
function ds(n) {
return typeof n == "string" && n.startsWith("?");
}
function fs(n, e, t) {
if (t.hasOwnProperty(n)) {
c