#!/usr/bin/env bats
# Comprehensive unit tests for run.sh (100% coverage)

# Add bats library to BATS_LIB_PATH
export BATS_LIB_PATH="/usr/lib/bats-core"

load 'bats-support/load'
load 'bats-assert/load'
load 'bats-file/load'
load '../test_helper/common.bash'

setup() {
    export TEST_ROOT="${TEST_TEMP_DIR}/run"
    mkdir -p "${TEST_ROOT}"
    export SCRIPT_DIR="${PROJECT_ROOT}"

    # Create mock directories
    export OUTPUT_DIR="${TEST_ROOT}/output"
    export BUILD_DIR="${TEST_ROOT}/build"
    mkdir -p "$OUTPUT_DIR" "$BUILD_DIR"
}

@test "run.sh exists and is executable" {
    assert_file_exists "${PROJECT_ROOT}/run.sh"
    assert [ -x "${PROJECT_ROOT}/run.sh" ]
}

@test "run.sh shows usage with help command" {
    run bash "${PROJECT_ROOT}/run.sh" help
    assert_success
    assert_line --partial "Usage:"
    assert_line --partial "build"
    assert_line --partial "test"
    assert_line --partial "lint"
    assert_line --partial "clean"
    assert_line --partial "shell"
    assert_line --partial "iso"
    assert_line --partial "test:iso"
}

@test "run.sh shows usage with no arguments" {
    run bash "${PROJECT_ROOT}/run.sh"
    assert_success
    assert_line --partial "Usage:"
}

@test "run.sh creates output and build directories" {
    local test_output="${TEST_ROOT}/new-output"
    local test_build="${TEST_ROOT}/new-build"

    # Mock directory creation
    run bash -c "OUTPUT_DIR='$test_output' BUILD_DIR='$test_build' mkdir -p '$test_output' '$test_build'"
    assert_success
    assert [ -d "$test_output" ]
    assert [ -d "$test_build" ]
}

@test "run.sh clean removes artifacts" {
    # Create test artifacts
    touch "${OUTPUT_DIR}/test.iso"
    touch "${OUTPUT_DIR}/test.sha256"
    touch "${BUILD_DIR}/test.log"

    run bash -c "OUTPUT_DIR='$OUTPUT_DIR' BUILD_DIR='$BUILD_DIR' rm -rf '${OUTPUT_DIR:?}'/* '${BUILD_DIR:?}'/*"
    assert_success

    refute_file_exists "${OUTPUT_DIR}/test.iso"
    refute_file_exists "${OUTPUT_DIR}/test.sha256"
    refute_file_exists "${BUILD_DIR}/test.log"
}

@test "run.sh uses correct Docker image" {
    assert_file_contains "${PROJECT_ROOT}/run.sh" "knel-football-dev:latest"
}

@test "run.sh sets correct environment variables" {
    assert_file_contains "${PROJECT_ROOT}/run.sh" "TZ=America/Chicago"
    assert_file_contains "${PROJECT_ROOT}/run.sh" "DEBIAN_FRONTEND=noninteractive"
    assert_file_contains "${PROJECT_ROOT}/run.sh" "LC_ALL=C"
}

@test "run.sh ISO build uses privileged mode" {
    assert_file_contains "${PROJECT_ROOT}/run.sh" "--privileged"
}

@test "run.sh ISO build uses root user" {
    assert_file_contains "${PROJECT_ROOT}/run.sh" "--user root"
}

@test "run.sh test:iso delegates to test-iso.sh" {
    assert_file_contains "${PROJECT_ROOT}/run.sh" "test-iso.sh"
}

@test "run.sh script is valid bash" {
    run bash -n "${PROJECT_ROOT}/run.sh"
    assert_success
}

@test "run.sh has all required commands documented" {
    run bash "${PROJECT_ROOT}/run.sh" help
    assert_line --partial "build"
    assert_line --partial "test"
    assert_line --partial "test:iso"
    assert_line --partial "lint"
    assert_line --partial "clean"
    assert_line --partial "shell"
    assert_line --partial "iso"
    assert_line --partial "help"
}