# Justfile for cc-libs
# Run `just ci` to verify local tooling and lint Lua code.

# List available recipes.
default:
    @just --list

# Install local development tooling.
install: init-env install-git-hooks check-install

# Create a local environment file when one does not exist.
init-env:
    @if [ ! -f .env ]; then \
        cp .env.sample .env; \
        printf '%s\n' 'Created .env from .env.sample'; \
    fi

# Install Git hooks for this repository.
install-git-hooks:
    @mkdir -p .git/hooks
    @printf '%s\n' '#!/bin/sh' '' 'just ci' > .git/hooks/pre-commit
    @chmod +x .git/hooks/pre-commit
    @printf '%s\n' 'Installed .git/hooks/pre-commit'

# Verify the CraftOS-PC harness is installed and recent enough.
check-craftos:
    @command -v craftos >/dev/null 2>&1 || { \
        printf '%s\n' 'craftos not found on $PATH. See docs/install-craftos-pc.md.' >&2; \
        exit 1; \
    }
    @version="$(craftos --version)"; \
    number="${version##* v}"; \
    case "$number" in \
        *.*.*) \
            ;; \
        *) \
            printf '%s\n' "$version"; \
            printf '%s\n' 'Could not parse CraftOS-PC version. See docs/install-craftos-pc.md.' >&2; \
            exit 1; \
            ;; \
    esac; \
    major="${number%%.*}"; \
    rest="${number#*.}"; \
    minor="${rest%%.*}"; \
    patch="${rest#*.}"; \
    patch="${patch%%[^0-9]*}"; \
    printf '%s\n' "$version"; \
    case "$major.$minor.$patch" in \
        *[!0-9.]*|.*|*..*|*.) \
            printf '%s\n' 'Could not parse CraftOS-PC version. See docs/install-craftos-pc.md.' >&2; \
            exit 1; \
            ;; \
    esac; \
    if ! { [ "${major:-0}" -gt 2 ] || \
        { [ "${major:-0}" -eq 2 ] && [ "${minor:-0}" -gt 8 ]; } || \
        { [ "${major:-0}" -eq 2 ] && [ "${minor:-0}" -eq 8 ] && [ "${patch:-0}" -ge 3 ]; }; }; then \
        printf '%s\n' 'CraftOS-PC v2.8.3 or newer is required. See docs/install-craftos-pc.md.' >&2; \
        exit 1; \
    fi

# Verify jq is installed.
check-jq:
    @command -v jq >/dev/null 2>&1 || { \
        printf '%s\n' 'jq not found on $PATH. See DEVELOPMENT.md.' >&2; \
        exit 1; \
    }

# Verify luacheck is installed.
check-luacheck:
    @command -v luacheck >/dev/null 2>&1 || { \
        printf '%s\n' 'luacheck not found on $PATH. See DEVELOPMENT.md.' >&2; \
        exit 1; \
    }

# Verify tools needed for local installation and CraftOS-PC launch recipes.
check-install: check-craftos check-jq check-luacheck

# Pass args through to `craftos`, for example:
#   just craftos --headless --exec 'print("__TRAPOS_TEST_OK__"); os.shutdown()'
# Launch CraftOS-PC with repo-local data and read-only repo mounts.
[positional-arguments]
craftos *args: check-install
    #!/usr/bin/env bash
    set -euo pipefail
    repo='{{justfile_directory()}}'
    argv=(--directory "$repo/.craftos")
    if [ "$(uname -s)" = "Darwin" ]; then
        argv+=(--rom /Applications/CraftOS-PC.app/Contents/Resources)
    fi
    argv+=(--mount-ro "/trapos=$repo")
    while IFS= read -r dir; do
        argv+=(--mount-ro "/$dir=$repo/$dir")
    done < <(jq -r '.files[] | split("/")[0]' "$repo/manifest.json" | sort -u)
    exec craftos "${argv[@]}" "$@"

# Human-only interactive REPL. LLM agents must not execute this command.
repl:
    @just craftos --cli

# Local CI entry point used by Git hooks. Pass args through to `test`.
ci *args: check-craftos check
    @just test {{args}}

# Run CraftOS-PC headless smoke tests. Pass `--verbose` to list each test.
test *args:
    @if [ -f .env ]; then set -a; . ./.env; set +a; fi; \
    verbose=0; \
    timeout_seconds="${TRAP_CCLIBS_TEST_TIMEOUT_SECONDS:-3}"; \
    case "$timeout_seconds" in ''|*[!0-9]*) printf '%s\n' 'TRAP_CCLIBS_TEST_TIMEOUT_SECONDS must be a positive integer' >&2; exit 1 ;; esac; \
    if [ "$timeout_seconds" -lt 1 ]; then printf '%s\n' 'TRAP_CCLIBS_TEST_TIMEOUT_SECONDS must be >= 1' >&2; exit 1; fi; \
    for a in {{args}}; do [ "$a" = "--verbose" ] && verbose=1; done; \
    script_args=""; \
    if [ "$verbose" -eq 1 ]; then script_args="--verbose"; fi; \
    rom_arg=""; \
    if [ "$(uname -s)" = "Darwin" ]; then \
        rom_arg="--rom /Applications/CraftOS-PC.app/Contents/Resources"; \
    fi; \
    repo='{{justfile_directory()}}'; \
    mount_arg="--mount-ro /apis=$repo/apis"; \
    green=$(printf '\033[32m'); reset=$(printf '\033[0m'); red=$(printf '\033[31m'); \
    for script in tests/boot.lua tests/ready.lua tests/eventloop.lua; do \
        tmp="$(mktemp)"; \
        craftos --headless $rom_arg $mount_arg --script "$script" $script_args >"$tmp" 2>&1 & \
        pid="$!"; \
        ( sleep "$timeout_seconds"; kill -TERM "$pid" >/dev/null 2>&1 ) & \
        watchdog="$!"; \
        wait "$pid" >/dev/null 2>&1; \
        status="$?"; \
        kill "$watchdog" >/dev/null 2>&1 || true; \
        wait "$watchdog" >/dev/null 2>&1 || true; \
        if grep -q __TRAPOS_TEST_OK__ "$tmp"; then \
            rm -f "$tmp"; \
            [ "$verbose" -eq 1 ] && printf '%s\n' "${green}PASS${reset} $script"; \
        else \
            if [ "$status" -eq 143 ]; then \
                printf '%s\n' "${red}FAIL${reset} $script timed out after ${timeout_seconds}s" >&2; \
            else \
                printf '%s\n' "${red}FAIL${reset} $script did not print __TRAPOS_TEST_OK__" >&2; \
            fi; \
            cat "$tmp" >&2; \
            rm -f "$tmp"; \
            exit 1; \
        fi; \
    done; \
    printf '%s\n' 'OK: smoke tests passed'

# Lint all Lua source with luacheck.
check: check-luacheck
    luacheck .