| 1 | /** |
| 2 | * platformLimits - 平台参数限制计算工具 |
| 3 | * 根据选中的平台组合，取各限制字段的最小值 |
| 4 | */ |
| 5 | |
| 6 | import type { PlatType } from '@/app/config/platConfig' |
| 7 | import { getPlatformInfoSync } from '@/store/platformMetadata' |
| 8 | |
| 9 | /** 有效限制（null 表示所有选中平台都没有该限制） */ |
| 10 | export interface EffectiveLimits { |
| 11 | titleMax: number | null |
| 12 | desMax: number | null |
| 13 | topicMax: number | null |
| 14 | imagesMax: number | null |
| 15 | } |
| 16 | |
| 17 | /** 带来源信息的限制详情 */ |
| 18 | export interface LimitDetail { |
| 19 | value: number |
| 20 | limitedBy: PlatType |
| 21 | } |
| 22 | |
| 23 | /** 带来源的有效限制 */ |
| 24 | export type EffectiveLimitsDetailed = Record<keyof EffectiveLimits, LimitDetail | null> |
| 25 | |
| 26 | /** |
| 27 | * 计算选中平台的有效参数限制（取最小值） |
| 28 | * 无选中平台时返回全 null（无限制） |
| 29 | */ |
| 30 | export function calcEffectiveLimits(platforms: PlatType[]): EffectiveLimits { |
| 31 | if (platforms.length === 0) { |
| 32 | return { titleMax: null, desMax: null, topicMax: null, imagesMax: null } |
| 33 | } |
| 34 | |
| 35 | const detailed = calcEffectiveLimitsDetailed(platforms) |
| 36 | return { |
| 37 | titleMax: detailed.titleMax?.value ?? null, |
| 38 | desMax: detailed.desMax?.value ?? null, |
| 39 | topicMax: detailed.topicMax?.value ?? null, |
| 40 | imagesMax: detailed.imagesMax?.value ?? null, |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | /** |
| 45 | * 计算选中平台的有效参数限制（带来源平台信息） |
| 46 | * 记录是哪个平台施加了最严限制 |
| 47 | */ |
| 48 | export function calcEffectiveLimitsDetailed(platforms: PlatType[]): EffectiveLimitsDetailed { |
| 49 | const result: EffectiveLimitsDetailed = { |
| 50 | titleMax: null, |
| 51 | desMax: null, |
| 52 | topicMax: null, |
| 53 | imagesMax: null, |
| 54 | } |
| 55 | |
| 56 | if (platforms.length === 0) |
| 57 | return result |
| 58 | |
| 59 | for (const plat of platforms) { |
| 60 | const info = getPlatformInfoSync(plat) |
| 61 | if (!info) |
| 62 | continue |
| 63 | |
| 64 | const config = info.commonPubParamsConfig |
| 65 | |
| 66 | if (typeof config.titleMax === 'number' && config.titleMax > 0) { |
| 67 | if (result.titleMax === null || config.titleMax < result.titleMax.value) { |
| 68 | result.titleMax = { value: config.titleMax, limitedBy: plat } |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | if (result.desMax === null || config.desMax < (result.desMax?.value ?? Infinity)) { |
| 73 | result.desMax = { value: config.desMax, limitedBy: plat } |
| 74 | } |
| 75 | |
| 76 | if (config.topicMax !== undefined) { |
| 77 | if (result.topicMax === null || config.topicMax < result.topicMax.value) { |
| 78 | result.topicMax = { value: config.topicMax, limitedBy: plat } |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | if (config.imagesMax !== undefined) { |
| 83 | if (result.imagesMax === null || config.imagesMax < result.imagesMax.value) { |
| 84 | result.imagesMax = { value: config.imagesMax, limitedBy: plat } |
| 85 | } |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | return result |
| 90 | } |
| 91 |