PF TA Isolate 10 - Typed-Matrix UTC

// This Pine Script® code is licensed under Apache-2.0
// SPDX-License-Identifier: Apache-2.0
// © PineForge contributors 2026
//
// PF TA-isolate probe 10 — typed-matrix-01 with explicit hour(time, "UTC")
//
// Purpose: typed-matrix-probe-01-bool-regime-mask uses bare `hour(time)` and
// `dayofweek(time)`, which Pine resolves to `syminfo.timezone` (the EXCHANGE
// timezone, NOT the chart display TZ). For BINANCE:ETHUSDT.P, TV may report
// syminfo.timezone as "UTC" or a non-UTC value depending on TV's symbol
// metadata — engine defaults to "UTC" via its constructor.
//
// This probe pins both sides to "UTC" by passing the timezone explicitly.
// Pine v6: `hour(time, tz_arg)` honours the explicit `tz_arg` regardless of
// syminfo or chart TZ.
//
// Diagnostic:
//   excellent → bug in typed-matrix-01 is engine syminfo_.timezone vs TV
//               syminfo.timezone for BINANCE:ETHUSDT.P. Fix: validator
//               passes BINANCE's syminfo.timezone (whatever TV reports) to
//               engine via syminfo_, separately from chart_timezone_.
//   strong/moderate → bug is in matrix bool dispatch (set/get/transpose) or
//               hotCount accumulator, NOT TZ-related.
//@version=6
strategy("PF TA isolate 10 - typed-matrix UTC", shorttitle="TAI_10_TM_UTC",
     overlay=true, initial_capital=1000000,
     commission_type=strategy.commission.percent, commission_value=0, slippage=0,
     default_qty_type=strategy.fixed, default_qty_value=1, pyramiding=1,
     process_orders_on_close=false)

var matrix<bool> mask = matrix.new<bool>(24, 7, false)

rsiVal = ta.rsi(close, 14)

int h = hour(time, "UTC")
int d = dayofweek(time, "UTC") - 1  // 0..6

if not na(rsiVal) and rsiVal > 60.0 and h >= 0 and h < 24 and d >= 0 and d < 7
    matrix.set(mask, h, d, true)

var matrix<bool> mT  = matrix.new<bool>(7, 24, false)
var matrix<bool> mTT = matrix.new<bool>(24, 7, false)
mT  := matrix.transpose(mask)
mTT := matrix.transpose(mT)

bool sample = matrix.get(mTT, h < 24 ? h : 0, d >= 0 and d < 7 ? d : 0)

int hotCount = 0
for i = 0 to 23
    for j = 0 to 6
        if matrix.get(mTT, i, j)
            hotCount += 1

bool entryCond = hotCount >= 6 and rsiVal > 55.0 and sample
bool exitCond  = not na(rsiVal) and rsiVal < 45.0

if entryCond and strategy.position_size == 0
    strategy.entry("L", strategy.long, qty=1, comment="entry long")
if exitCond and strategy.position_size > 0
    strategy.close("L", comment="exit long")