City-Lifeline-Cockpit/src/modules/cockpit/domain/pipeVisual.js

/** Display semantics; original industry, diameter, networkLevel and remark remain unchanged. */
export const PIPE_PALETTE = Object.freeze({
    GAS: { color:'#ff3b52', label:'燃气' },
    WATER_SUPPLY: { color:'#168bff', label:'供水' },
    SEWAGE: { color:'#29e36c', label:'污水' },
    RAINWATER: { color:'#00e5ff', label:'雨水' },
    MANHOLE: { color:'#b36bff', label:'窨井' },
    DRAINAGE_UNKNOWN: { color:'#aab7c4', label:'排水（雨污等级未识别）' },
    UNKNOWN: { color:'#aab7c4', label:'未分类' },
})
export const PIPE_DISPLAY = Object.freeze({ diameterScale:8, minDiameterM:0, maxDiameterM:Infinity, guideFromM:600, guideWidthPx:4 })
export const PIPE_VIRTUAL_DEPTH_M = Object.freeze({ GAS:1.5, WATER_SUPPLY:4, SEWAGE:8, RAINWATER:10, DRAINAGE_UNKNOWN:8 })
/**
 * 管线颜色图例（票 48）：地图实际会画出的**全部**颜色桶的展示顺序。
 *
 * 维护者点名五个（GAS/WATER_SUPPLY/SEWAGE/RAINWATER/MANHOLE）；`pipeColorKey()` 对
 * 雨污等级未识别的排水管与脏行业码还会给出 DRAINAGE_UNKNOWN / UNKNOWN 两桶，
 * 地图上真的会画出这两种灰（见 `pipeColorKey` 的兜底分支）——按「图例必须覆盖
 * 地图实际会画出的颜色」判据一并列出，用户看到灰线时含义可直接查到，不静默丢桶。
 * 顺序表必须与 `PIPE_PALETTE` 的键集合一致（闸门 t48 锁定）：调色板加桶而这里没跟上是缺陷。
 */
export const PIPE_LEGEND_ORDER = Object.freeze(['GAS','WATER_SUPPLY','SEWAGE','RAINWATER','MANHOLE','DRAINAGE_UNKNOWN','UNKNOWN'])

/** 图例行：色值与词条**引用 `PIPE_PALETTE` 本体**（同一对象），图例与地图逐字节同源，不另抄十六进制。 */
export function pipeLegendEntries() {
    return PIPE_LEGEND_ORDER.map((key) => ({ key, color: PIPE_PALETTE[key].color, label: PIPE_PALETTE[key].label }))
}

/**
 * 按颜色桶计数（票 48 图例的计数来源）。
 *
 * `network` 形状不完整（还没取数 / 取数失败）→ `{ available:false }`，调用方**不得画 0**——
 * 「后端没给」与「确实是 0」是两件事（票 05 的纪律）；计数 0 是真实值（该桶确实没有对象），照常显示。
 * @param {{pipes?:Array, components?:Array}} [network] `domain/pipeNetwork.js` 的图层形状
 * @returns {{available: boolean, byKey: object}} `byKey` 只含 `PIPE_LEGEND_ORDER` 的键
 */
export function pipeColorCounts(network) {
    const pipes = network && Array.isArray(network.pipes) ? network.pipes : null
    const components = network && Array.isArray(network.components) ? network.components : null
    if (!pipes || !components) return { available: false, byKey: {} }
    const byKey = {}
    for (const key of PIPE_LEGEND_ORDER) byKey[key] = 0
    for (const row of pipes) {
        const key = pipeColorKey(row)
        if (Object.prototype.hasOwnProperty.call(byKey, key)) byKey[key] += 1
    }
    for (const row of components) {
        const key = pipeColorKey(row)
        if (Object.prototype.hasOwnProperty.call(byKey, key)) byKey[key] += 1
    }
    return { available: true, byKey }
}

export function pipeVirtualDepthM(colorKey) {
    return PIPE_VIRTUAL_DEPTH_M[colorKey] ?? 2
}

export function pipeColorKey(row) {
    if (row.industry !== 'DRAINAGE') return ['GAS','WATER_SUPPLY','MANHOLE'].includes(row.industry) ? row.industry : 'UNKNOWN'
    const raw = row.networkLevel
    const level = raw == null || (typeof raw === 'string' && raw.trim() === '') ? '0'
        : typeof raw === 'number' || typeof raw === 'string' ? String(raw).trim() : ''
    if (level === '0') return 'SEWAGE'
    if (level === '1') return 'RAINWATER'
    return 'DRAINAGE_UNKNOWN'
}

/** Source metres stay unchanged; 8x transverse display makes underground pipes readable. */
export function displayPipeDiameter(diameterM) {
    return Number.isFinite(diameterM) && diameterM > 0 ? diameterM * PIPE_DISPLAY.diameterScale : null
}