import * as __ctHelpers from "commontools"; import { Cell, derive, pattern, UI } from "commontools"; interface Item { name: string; done: Cell; } interface Assignment { aisle: string; item: Item; } // CT-1036: Property access on derived grouped objects with derived keys // This pattern groups items by a property, then maps over the group keys // and accesses the grouped object with each key. export default pattern(({ items }) => { // Create assignments with aisle data const itemsWithAisles = derive({ type: "object", properties: { items: { type: "array", items: { $ref: "#/$defs/Item" }, asOpaque: true } }, required: ["items"], $defs: { Item: { type: "object", properties: { name: { type: "string" }, done: { type: "boolean", asCell: true } }, required: ["name", "done"] } } } as const satisfies __ctHelpers.JSONSchema, { type: "array", items: { type: "object", properties: { aisle: { type: "string" }, item: { $ref: "#/$defs/Item", asOpaque: true } }, required: ["aisle", "item"] }, asOpaque: true, $defs: { Item: { type: "object", properties: { name: { type: "string" }, done: { type: "boolean", asCell: true } }, required: ["name", "done"] } } } as const satisfies __ctHelpers.JSONSchema, { items }, ({ items }) => items.map((item, idx) => ({ aisle: `Aisle ${(idx % 3) + 1}`, item: item, }))); // Group by aisle - returns Record const groupedByAisle = derive({ type: "object", properties: { itemsWithAisles: { type: "array", items: { type: "object", properties: { aisle: { type: "string" }, item: { $ref: "#/$defs/Item", asOpaque: true } }, required: ["aisle", "item"] }, asOpaque: true } }, required: ["itemsWithAisles"], $defs: { Item: { type: "object", properties: { name: { type: "string" }, done: { type: "boolean", asCell: true } }, required: ["name", "done"] } } } as const satisfies __ctHelpers.JSONSchema, { type: "object", properties: {}, additionalProperties: { type: "array", items: { $ref: "#/$defs/Assignment" } }, $defs: { Assignment: { type: "object", properties: { aisle: { type: "string" }, item: { $ref: "#/$defs/Item" } }, required: ["aisle", "item"] }, Item: { type: "object", properties: { name: { type: "string" }, done: { type: "boolean", asCell: true } }, required: ["name", "done"] } } } as const satisfies __ctHelpers.JSONSchema, { itemsWithAisles }, ({ itemsWithAisles }) => { const groups: Record = {}; for (const assignment of itemsWithAisles) { if (!groups[assignment.aisle]) { groups[assignment.aisle] = []; } groups[assignment.aisle]!.push(assignment); } return groups; }); // Derive sorted aisle names from grouped object const aisleNames = derive({ type: "object", properties: { groupedByAisle: { type: "object", properties: {}, additionalProperties: { type: "array", items: { $ref: "#/$defs/Assignment" } }, asOpaque: true } }, required: ["groupedByAisle"], $defs: { Assignment: { type: "object", properties: { aisle: { type: "string" }, item: { $ref: "#/$defs/Item" } }, required: ["aisle", "item"] }, Item: { type: "object", properties: { name: { type: "string" }, done: { type: "boolean", asCell: true } }, required: ["name", "done"] } } } as const satisfies __ctHelpers.JSONSchema, { type: "array", items: { type: "string" } } as const satisfies __ctHelpers.JSONSchema, { groupedByAisle }, ({ groupedByAisle }) => Object.keys(groupedByAisle).sort()); // The pattern from CT-1036: // - Map over derived keys (aisleNames) // - Access derived object with derived key (groupedByAisle[aisleName]) // - Map over the result return { [UI]: (
{aisleNames.mapWithPattern(__ctHelpers.pattern(({ element: aisleName, params: { groupedByAisle } }) => (

{aisleName}

{(__ctHelpers.derive({ type: "object", properties: { groupedByAisle: { type: "object", properties: {}, additionalProperties: { type: "array", items: { $ref: "#/$defs/Assignment" } }, asOpaque: true }, aisleName: { type: "string", asOpaque: true } }, required: ["groupedByAisle", "aisleName"], $defs: { Assignment: { type: "object", properties: { aisle: { type: "string" }, item: { $ref: "#/$defs/Item" } }, required: ["aisle", "item"] }, Item: { type: "object", properties: { name: { type: "string" }, done: { type: "boolean", asCell: true } }, required: ["name", "done"] } } } as const satisfies __ctHelpers.JSONSchema, { type: "array", items: { $ref: "#/$defs/Assignment" }, asOpaque: true, $defs: { Assignment: { type: "object", properties: { aisle: { type: "string" }, item: { $ref: "#/$defs/Item" } }, required: ["aisle", "item"] }, Item: { type: "object", properties: { name: { type: "string" }, done: { type: "boolean", asCell: true } }, required: ["name", "done"] } } } as const satisfies __ctHelpers.JSONSchema, { groupedByAisle: groupedByAisle, aisleName: aisleName }, ({ groupedByAisle, aisleName }) => groupedByAisle[aisleName]! ?? [])).mapWithPattern(__ctHelpers.pattern(({ element: assignment, params: {} }) => (
{assignment.item.name}
), { type: "object", properties: { element: { $ref: "#/$defs/Assignment" }, params: { type: "object", properties: {} } }, required: ["element", "params"], $defs: { Assignment: { type: "object", properties: { aisle: { type: "string" }, item: { $ref: "#/$defs/Item" } }, required: ["aisle", "item"] }, Item: { type: "object", properties: { name: { type: "string" }, done: { type: "boolean", asCell: true } }, required: ["name", "done"] } } } as const satisfies __ctHelpers.JSONSchema, { anyOf: [{ $ref: "https://commonfabric.org/schemas/vnode.json" }, { type: "object", properties: {} }, { $ref: "#/$defs/UIRenderable", asOpaque: true }], $defs: { UIRenderable: { type: "object", properties: { $UI: { $ref: "https://commonfabric.org/schemas/vnode.json" } }, required: ["$UI"] } } } as const satisfies __ctHelpers.JSONSchema), {})}
), { type: "object", properties: { element: { type: "string" }, params: { type: "object", properties: { groupedByAisle: { type: "object", properties: {}, additionalProperties: { type: "array", items: { $ref: "#/$defs/Assignment" } }, asOpaque: true } }, required: ["groupedByAisle"] } }, required: ["element", "params"], $defs: { Assignment: { type: "object", properties: { aisle: { type: "string" }, item: { $ref: "#/$defs/Item" } }, required: ["aisle", "item"] }, Item: { type: "object", properties: { name: { type: "string" }, done: { type: "boolean", asCell: true } }, required: ["name", "done"] } } } as const satisfies __ctHelpers.JSONSchema, { anyOf: [{ $ref: "https://commonfabric.org/schemas/vnode.json" }, { type: "object", properties: {} }, { $ref: "#/$defs/UIRenderable", asOpaque: true }], $defs: { UIRenderable: { type: "object", properties: { $UI: { $ref: "https://commonfabric.org/schemas/vnode.json" } }, required: ["$UI"] } } } as const satisfies __ctHelpers.JSONSchema), { groupedByAisle: groupedByAisle })}
), }; }, { type: "object", properties: { items: { type: "array", items: { $ref: "#/$defs/Item" } } }, required: ["items"], $defs: { Item: { type: "object", properties: { name: { type: "string" }, done: { type: "boolean", asCell: true } }, required: ["name", "done"] } } } as const satisfies __ctHelpers.JSONSchema, { type: "object", properties: { $UI: { $ref: "#/$defs/JSXElement" } }, required: ["$UI"], $defs: { JSXElement: { anyOf: [{ $ref: "https://commonfabric.org/schemas/vnode.json" }, { type: "object", properties: {} }, { $ref: "#/$defs/UIRenderable", asOpaque: true }] }, UIRenderable: { type: "object", properties: { $UI: { $ref: "https://commonfabric.org/schemas/vnode.json" } }, required: ["$UI"] } } } as const satisfies __ctHelpers.JSONSchema); // @ts-ignore: Internals function h(...args: any[]) { return __ctHelpers.h.apply(null, args); } // @ts-ignore: Internals h.fragment = __ctHelpers.h.fragment;