#!/usr/bin/env bash
# Row 69 (#1562) mutants: the brief's four, then two on this row's own
# lines. Run from the candidate worktree's root:
#   LOG=/some/dir bash mutants.sh /path/to/mut.mjs > mutants.txt
# Each mutant edits one site with mut.mjs (exactly one match, else exit 3),
# runs the app tests and restores the file. "killed" means the run failed;
# "survived" means it passed.
set -u
MUT=$1
run() {
  local name=$1 file=$2 from=$3 to=$4; shift 4
  cp -- "$file" "$file.orig"
  if ! node "$MUT" "$file" "$from" "$to"; then
    echo "$name: NO MATCH"; mv -- "$file.orig" "$file"; return
  fi
  if node --test "$@" > "${LOG:-.}/mut-$name.log" 2>&1; then
    echo "$name: survived"
  else
    echo "$name: killed ($(grep -m1 -o 'ℹ fail [0-9]*' "${LOG:-.}/mut-$name.log"); $(grep '^✖ ' "${LOG:-.}/mut-$name.log" | grep -v 'failing tests' | sort -u | sed 's/^✖ //; s/ ([0-9.]*ms)$//' | paste -sd '|'))"
  fi
  mv -- "$file.orig" "$file"
}
S=packages/cli/src/screens.mjs
A=packages/cli/src/app.mjs
T=(packages/cli/tests/app.test.mjs)
run shown-no-min-cols $S 'return cols >= MIN_COLS && rows >= MIN_ROWS && o?.kind' 'return rows >= MIN_ROWS && o?.kind' "${T[@]}"
run r3-shown-no-min $S 'return cols >= MIN_COLS && rows >= MIN_ROWS && o?.kind' 'return o?.kind' "${T[@]}"
run n9-17000-end-off $S '(n >= 0x17000 && n <= 0x18d08)' '(n >= 0x17000 && n <= 0x18cff)' "${T[@]}"
run cut-drops-choice $S 'const tail = b.slice(-2);' 'const tail = b.slice(-1);' "${T[@]}"
run hidden-no-way-out $S ', "Resize, or use mosaic decide."]' ']' "${T[@]}"
run hidden-status-promises-y $A 'const state = hidden ? {' 'const state = false ? {' "${T[@]}"