#!/usr/bin/env bats
# Tests for safe_* functions in lib/core/common.sh

setup_file() {
    PROJECT_ROOT="$(cd "${BATS_TEST_DIRNAME}/.." && pwd)"
    export PROJECT_ROOT

    ORIGINAL_HOME="${HOME:-}"
    export ORIGINAL_HOME

    HOME="$(mktemp -d "${BATS_TEST_DIRNAME}/tmp-safe-functions.XXXXXX")"
    export HOME

    mkdir -p "$HOME"
}

teardown_file() {
    rm -rf "$HOME"
    if [[ -n "${ORIGINAL_HOME:-}" ]]; then
        export HOME="$ORIGINAL_HOME"
    fi
}

setup() {
    source "$PROJECT_ROOT/lib/core/common.sh"
    TEST_DIR="$HOME/test_safe_functions"
    mkdir -p "$TEST_DIR"
}

teardown() {
    rm -rf "$TEST_DIR"
}

# Test validate_path_for_deletion
@test "validate_path_for_deletion rejects empty path" {
    run bash -c "source '$PROJECT_ROOT/lib/core/common.sh'; validate_path_for_deletion ''"
    [ "$status" -eq 1 ]
}

@test "validate_path_for_deletion rejects relative path" {
    run bash -c "source '$PROJECT_ROOT/lib/core/common.sh'; validate_path_for_deletion 'relative/path'"
    [ "$status" -eq 1 ]
}

@test "validate_path_for_deletion rejects path traversal" {
    run bash -c "source '$PROJECT_ROOT/lib/core/common.sh'; validate_path_for_deletion '/tmp/../etc'"
    [ "$status" -eq 1 ]
}

@test "validate_path_for_deletion rejects system directories" {
    run bash -c "source '$PROJECT_ROOT/lib/core/common.sh'; validate_path_for_deletion '/System'"
    [ "$status" -eq 1 ]

    run bash -c "source '$PROJECT_ROOT/lib/core/common.sh'; validate_path_for_deletion '/usr/bin'"
    [ "$status" -eq 1 ]

    run bash -c "source '$PROJECT_ROOT/lib/core/common.sh'; validate_path_for_deletion '/etc'"
    [ "$status" -eq 1 ]
}

@test "validate_path_for_deletion accepts valid path" {
    run bash -c "source '$PROJECT_ROOT/lib/core/common.sh'; validate_path_for_deletion '$TEST_DIR/valid'"
    [ "$status" -eq 0 ]
}

# Test safe_remove
@test "safe_remove validates path before deletion" {
    run bash -c "source '$PROJECT_ROOT/lib/core/common.sh'; safe_remove '/System/test' 2>&1"
    [ "$status" -eq 1 ]
}

@test "safe_remove successfully removes file" {
    local test_file="$TEST_DIR/test_file.txt"
    echo "test" > "$test_file"

    run bash -c "source '$PROJECT_ROOT/lib/core/common.sh'; safe_remove '$test_file' true"
    [ "$status" -eq 0 ]
    [ ! -f "$test_file" ]
}

@test "safe_remove successfully removes directory" {
    local test_subdir="$TEST_DIR/test_subdir"
    mkdir -p "$test_subdir"
    touch "$test_subdir/file.txt"

    run bash -c "source '$PROJECT_ROOT/lib/core/common.sh'; safe_remove '$test_subdir' true"
    [ "$status" -eq 0 ]
    [ ! -d "$test_subdir" ]
}

@test "safe_remove handles non-existent path gracefully" {
    run bash -c "source '$PROJECT_ROOT/lib/core/common.sh'; safe_remove '$TEST_DIR/nonexistent' true"
    [ "$status" -eq 0 ]
}

@test "safe_remove in silent mode suppresses error output" {
    # Try to remove system directory in silent mode
    run bash -c "source '$PROJECT_ROOT/lib/core/common.sh'; safe_remove '/System/test' true 2>&1"
    [ "$status" -eq 1 ]
    # Should not output error in silent mode
}


# Test safe_find_delete
@test "safe_find_delete validates base directory" {
    run bash -c "source '$PROJECT_ROOT/lib/core/common.sh'; safe_find_delete '/nonexistent' '*.tmp' 7 'f' 2>&1"
    [ "$status" -eq 1 ]
}

@test "safe_find_delete rejects symlinked directory" {
    local real_dir="$TEST_DIR/real"
    local link_dir="$TEST_DIR/link"
    mkdir -p "$real_dir"
    ln -s "$real_dir" "$link_dir"

    run bash -c "source '$PROJECT_ROOT/lib/core/common.sh'; safe_find_delete '$link_dir' '*.tmp' 7 'f' 2>&1"
    [ "$status" -eq 1 ]
    [[ "$output" == *"symlink"* ]]

    rm -rf "$link_dir" "$real_dir"
}

@test "safe_find_delete validates type filter" {
    run bash -c "source '$PROJECT_ROOT/lib/core/common.sh'; safe_find_delete '$TEST_DIR' '*.tmp' 7 'x' 2>&1"
    [ "$status" -eq 1 ]
    [[ "$output" == *"Invalid type filter"* ]]
}

@test "safe_find_delete deletes old files" {
    # Create test files with different ages
    local old_file="$TEST_DIR/old.tmp"
    local new_file="$TEST_DIR/new.tmp"

    touch "$old_file"
    touch "$new_file"

    # Make old_file 8 days old (requires touch -t)
    touch -t "$(date -v-8d '+%Y%m%d%H%M.%S' 2>/dev/null || date -d '8 days ago' '+%Y%m%d%H%M.%S')" "$old_file" 2>/dev/null || true

    run bash -c "source '$PROJECT_ROOT/lib/core/common.sh'; safe_find_delete '$TEST_DIR' '*.tmp' 7 'f'"
    [ "$status" -eq 0 ]
}

# Test MOLE constants are defined
@test "MOLE_* constants are defined" {
    run bash -c "source '$PROJECT_ROOT/lib/core/common.sh'; echo \$MOLE_TEMP_FILE_AGE_DAYS"
    [ "$status" -eq 0 ]
    [ "$output" = "7" ]

    run bash -c "source '$PROJECT_ROOT/lib/core/common.sh'; echo \$MOLE_MAX_PARALLEL_JOBS"
    [ "$status" -eq 0 ]
    [ "$output" = "15" ]

    run bash -c "source '$PROJECT_ROOT/lib/core/common.sh'; echo \$MOLE_TM_BACKUP_SAFE_HOURS"
    [ "$status" -eq 0 ]
    [ "$output" = "48" ]
}