// organ-read.el - Route the render's GEOMETRY READ through the ingest ORGAN's
// saved engram files (the coordinator's source of truth). For each file we
// engram_load() it, engram_scan_nodes_json(limit, offset) to get the node array,
// and cache each node's self-contained CONTENT string keyed by symbol. Because
// the cached value carries the numbers ("... f1=730 ..."), the cache SURVIVES the
// store being REPLACED by the next engram_load — so we load+cache phonetics
// FIRST, then load+cache accent. The .psv path remains a fallback.
//
// engram_scan_nodes_json(limit, offset) takes NO query; it returns nodes
// salience-sorted, so limit must be >= node count and we filter client-side.
// (engram_search / engram_scan_nodes return len-5 garbage — unused.)

// Find every occurrence of `marker` in the scan JSON; for each, cache
// sym -> a 150-char content window (enough to hold f1..amp). Duplicates from the
// node's "content" and "label" fields are harmless (first match wins on read).
fn organ_cache(j: String, marker: String, mlen: Int, win_len: Int, need: String) -> [String] {
    let m: [String] = native_list_empty()
    let jl: Int = str_len(j)
    let off: Int = 0
    while off < jl {
        let rest: String = str_slice(j, off, jl)
        let p: Int = str_index_of(rest, marker)
        if p < 0 {
            off = jl
        } else {
            let abs: Int = off + p
            let win: String = str_slice(j, abs, abs + win_len)
            let after: String = str_slice(win, mlen, str_len(win))
            let sp: Int = str_index_of(after, " ")
            let hasneed: Int = str_index_of(win, need)
            if sp > 0 {
                if hasneed >= 0 {
                    let sym: String = str_slice(after, 0, sp)
                    m = native_list_append(m, sym)
                    m = native_list_append(m, win)
                }
            }
            off = abs + mlen
        }
    }
    return m
}

// Load the phonetics organ file and cache sym -> content. mlen("phoneme ")=8.
fn organ_pmap(path: String) -> [String] {
    let ok: Bool = engram_load(path)
    if ok == false {
        return native_list_empty()
    }
    let j: String = engram_scan_nodes_json(600, 0)
    return organ_cache(j, "phoneme ", 8, 150, "f1=")
}

// Load the accent organ file and cache sym -> content. mlen("accent_target ")=14.
// Vowel overrides carry f1=..; the R rule carries drop_coda_r (need="=" matches
// both, i.e. any well-formed accent_target field).
fn organ_amap(path: String) -> [String] {
    let ok: Bool = engram_load(path)
    if ok == false {
        return native_list_empty()
    }
    let j: String = engram_scan_nodes_json(600, 0)
    return organ_cache(j, "accent_target ", 14, 90, "=")
}

// Vowel-set (categorical class) from the phonetics .psv class column.
fn organ_vset(path: String) -> [String] {
    let content: String = fs_read(path)
    let lines: [String] = str_split(content, "\n")
    let nl: Int = native_list_len(lines)
    let v: [String] = native_list_empty()
    let li: Int = 0
    while li < nl {
        let line: String = native_list_get(lines, li)
        let ok: Int = 1
        if str_len(line) < 5 {
            ok = 0
        }
        if ok == 1 {
            if str_char_code(line, 0) == 35 {
                ok = 0
            }
        }
        if ok == 1 {
            let f: [String] = str_split(line, "|")
            if native_list_len(f) >= 12 {
                if str_eq(native_list_get(f, 11), "vowel") {
                    v = native_list_append(v, native_list_get(f, 0))
                }
            }
        }
        li = li + 1
    }
    return v
}

// Word -> phoneme-sequence cache from lexicon.psv (engram-independent).
fn organ_lex(path: String) -> [String] {
    let content: String = fs_read(path)
    let lines: [String] = str_split(content, "\n")
    let nl: Int = native_list_len(lines)
    let m: [String] = native_list_empty()
    let li: Int = 0
    while li < nl {
        let line: String = native_list_get(lines, li)
        let ok: Int = 1
        if str_len(line) < 3 {
            ok = 0
        }
        if ok == 1 {
            if str_char_code(line, 0) == 35 {
                ok = 0
            }
        }
        if ok == 1 {
            let f: [String] = str_split(line, "|")
            if native_list_len(f) >= 2 {
                m = native_list_append(m, native_list_get(f, 0))
                m = native_list_append(m, native_list_get(f, 1))
            }
        }
        li = li + 1
    }
    return m
}