#!/bin/sh
# Load the four immutable contract files in fixed order and write the
# generated system prompt to /var/lib/mosaic/system-prompt.md.
#
# Order is normative: CONSTITUTION.md, STANDARDS.md, SOUL.md, USER.md.
set -eu

CONTRACT_DIR="${1:-/opt/mosaic/contracts}"
OUT="${2:-/var/lib/mosaic/system-prompt.md}"

FILES="CONSTITUTION.md STANDARDS.md SOUL.md USER.md"

if [ ! -d "$CONTRACT_DIR" ]; then
    echo "load-contracts: contract directory not found: $CONTRACT_DIR" >&2
    exit 1
fi

PARENT="$(dirname "$OUT")"
mkdir -p "$PARENT"

TEMP="$OUT.partial"
: > "$TEMP"

for f in $FILES; do
    path="$CONTRACT_DIR/$f"
    if [ ! -r "$path" ]; then
        echo "load-contracts: missing contract file: $path" >&2
        rm -f "$TEMP"
        exit 1
    fi
    printf '===== CONTRACT: %s =====\n' "$f" >> "$TEMP"
    cat "$path" >> "$TEMP"
    printf '\n' >> "$TEMP"
done

# Sanctioned mission injection point (M4): when the task runner provides a
# mission snapshot, its objective and directives are appended AFTER the
# immutable contracts. Runtime data; never part of the contract fixtures.
if [ -n "${MOSAIC_MISSION_FILE:-}" ]; then
    if [ ! -r "$MOSAIC_MISSION_FILE" ]; then
        echo "load-contracts: MOSAIC_MISSION_FILE set but not readable: $MOSAIC_MISSION_FILE" >&2
        rm -f "$TEMP"
        exit 1
    fi
    printf '===== MISSION (runtime) =====\n' >> "$TEMP"
    node -e '
const m = JSON.parse(require("fs").readFileSync(process.env.MOSAIC_MISSION_FILE, "utf8"));
process.stdout.write("Objective: " + m.objective + "\n");
for (const d of m.directives ?? []) process.stdout.write("- " + d + "\n");
' >> "$TEMP"
    printf '\n' >> "$TEMP"
fi

mv "$TEMP" "$OUT"
echo "load-contracts: wrote $OUT from $CONTRACT_DIR" >&2