`nx_bom_hb.nx` source

1// nx_bom.nx -- LIB: component library + supply-chain BILL OF MATERIALS, as a digital twin of real procurement.
2// A parts library carries REAL data per part (mfr part number, unit price in CENTS, available stock). A design maps
3// each component instance to a library part; the BOM aggregates by part -> quantity + extended cost, sums an EXACT
4// integer total (no float rounding -> what you'd really pay), and flags supply-chain SHORTFALLS (required qty >
5// stock = can't source). Composes the schematic's component list (schematic -> ... -> BOM). Data-driven: adding a
6// part = a library row. never-brick #26: pure arithmetic, bounded, deterministic. license_tier: ORIGINAL
7import "nx_syscalls.nx"
8
9// quantity of a given library part used across the design's component instances.
10func bom_qty(comp_part: *i64, ncomp: i64, part: i64) -> i64 {
11    var c: i64 = 0
12    var i: i64 = 0
13    while i < ncomp { if comp_part[i] == part { c = c + 1 } i = i + 1 }
14    return c
15}
16
17// EXACT total BOM cost in cents = sum over parts of qty * unit_price_cents.
18func bom_total_cents(comp_part: *i64, ncomp: i64, lib_price: *i64, nlib: i64) -> i64 {
19    var total: i64 = 0
20    var p: i64 = 0
21    while p < nlib {
22        let qty: i64 = bom_qty(comp_part, ncomp, p)
23        total = total + qty * lib_price[p]
24        p = p + 1
25    }
26    return total
27}
28
29// supply-chain shortfalls: number of parts whose required qty EXCEEDS available stock (0 = fully sourceable).
30func bom_shortfalls(comp_part: *i64, ncomp: i64, lib_stock: *i64, nlib: i64) -> i64 {
31    var sf: i64 = 0
32    var p: i64 = 0
33    while p < nlib {
34        let qty: i64 = bom_qty(comp_part, ncomp, p)
35        if qty > lib_stock[p] { sf = sf + 1 }
36        p = p + 1
37    }
38    return sf
39}
nx_bom_hb.nx source

`nx_bom_hb.nx` source
