| 1 | /** Local contributor draft only: no eligibility check, payment or vendor order. */ |
| 2 | export type ContributorIdentity = { github: string; contribution: string }; |
| 3 | export type IdentityError = "missing" | "badIdentity" | "badUrl"; |
| 4 | |
| 5 | export function validateContributorIdentity(value: ContributorIdentity): IdentityError | null { |
| 6 | const github = value.github.trim().replace(/^@/, ""); |
| 7 | const contribution = value.contribution.trim(); |
| 8 | if (!github && !contribution) return "missing"; |
| 9 | if (github && (!/^[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,37}[a-zA-Z0-9])?$/.test(github) || github.includes("--"))) return "badIdentity"; |
| 10 | if (contribution) { |
| 11 | try { |
| 12 | const url = new URL(contribution); |
| 13 | if (contribution.length > 2048 || url.protocol !== "https:" || url.username || url.password) return "badUrl"; |
| 14 | } catch { return "badUrl"; } |
| 15 | } |
| 16 | return null; |
| 17 | } |
| 18 | |
| 19 | export const CONTRIBUTOR_CATALOG_SOURCE = "https://www.yoycol.com/product_detail/DJCTX/Unisex-O-neck-Short-Sleeve-T-shirt-180GSM-Cotton-DTF"; |
| 20 | |
| 21 | /** Catalog-floor estimate; artwork, tax, address and real FX are still unquoted. */ |
| 22 | export function contributorCost({ production = 5.12, shipping = 1.11, rate = .039, flat = .30, fx = 6.70 } = {}) { |
| 23 | if (![production, shipping, rate, flat, fx].every(Number.isFinite) || production < 0 || shipping < 0 || flat < 0 || rate < 0 || rate >= 1 || fx <= 0) throw new RangeError("Invalid cost inputs"); |
| 24 | const productionCny = production * fx; |
| 25 | const shippingCny = shipping * fx; |
| 26 | const unrounded = (productionCny + shippingCny + flat * fx) / (1 - rate); |
| 27 | // Round the whole charge upward to avoid rounding below processing-inclusive cost. |
| 28 | const total = Math.ceil((unrounded - Number.EPSILON) * 100) / 100; |
| 29 | const postage = Math.round(shippingCny * 100) / 100; |
| 30 | const made = Math.round(productionCny * 100) / 100; |
| 31 | return { production: made, shipping: postage, processing: Math.round((total - made - postage) * 100) / 100, total, merchandise: Math.round((total - postage) * 100) / 100, fx, rate, flat }; |
| 32 | } |
| 33 |