import type {
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CodeKeywordDefinition,
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ErrorObject,
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KeywordErrorDefinition,
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AnySchema,
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} from "../../types"
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import type {KeywordCxt} from "../../compile/validate"
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import {_, str, not, Name} from "../../compile/codegen"
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import {alwaysValidSchema, checkStrictMode, Type} from "../../compile/util"
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export type AdditionalItemsError = ErrorObject<"additionalItems", {limit: number}, AnySchema>
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const error: KeywordErrorDefinition = {
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message: ({params: {len}}) => str`must NOT have more than ${len} items`,
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params: ({params: {len}}) => _`{limit: ${len}}`,
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}
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const def: CodeKeywordDefinition = {
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keyword: "additionalItems" as const,
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type: "array",
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schemaType: ["boolean", "object"],
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before: "uniqueItems",
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error,
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code(cxt: KeywordCxt) {
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const {parentSchema, it} = cxt
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const {items} = parentSchema
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if (!Array.isArray(items)) {
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checkStrictMode(it, '"additionalItems" is ignored when "items" is not an array of schemas')
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return
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}
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validateAdditionalItems(cxt, items)
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},
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}
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export function validateAdditionalItems(cxt: KeywordCxt, items: AnySchema[]): void {
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const {gen, schema, data, keyword, it} = cxt
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it.items = true
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const len = gen.const("len", _`${data}.length`)
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if (schema === false) {
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cxt.setParams({len: items.length})
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cxt.pass(_`${len} <= ${items.length}`)
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} else if (typeof schema == "object" && !alwaysValidSchema(it, schema)) {
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const valid = gen.var("valid", _`${len} <= ${items.length}`) // TODO var
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gen.if(not(valid), () => validateItems(valid))
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cxt.ok(valid)
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}
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function validateItems(valid: Name): void {
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gen.forRange("i", items.length, len, (i) => {
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cxt.subschema({keyword, dataProp: i, dataPropType: Type.Num}, valid)
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if (!it.allErrors) gen.if(not(valid), () => gen.break())
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})
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}
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}
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export default def
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