#!/bin/bash
# Unit tests for lmsensors-extend.sh -n numeric mode [#618]
set -euo pipefail

PROJECT_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
SCRIPT="$PROJECT_ROOT/sensors/temper/lmsensors-extend.sh"

failed=0
if [[ -f "$SCRIPT" ]] && (source "$SCRIPT"); then
    echo "✅ script exists + sources cleanly"
else
    echo "❌ script missing or fails to source: $SCRIPT"
    exit 1
fi
# shellcheck disable=SC1091
source "$SCRIPT"

# numeric_pick: TEMPer external > TEMPer internal > first native/sysfs value
test_numeric_prefers_external() {
    if [[ "$(numeric_pick "22.5" "18.2" "" )" == "18.2" ]]; then
        echo "✅ numeric_pick prefers external probe"
    else
        echo "❌ numeric_pick external preference broken"
        ((++failed))
    fi
}

test_numeric_falls_back_internal() {
    if [[ "$(numeric_pick "22.5" "" "")" == "22.5" ]]; then
        echo "✅ numeric_pick falls back to internal"
    else
        echo "❌ numeric_pick internal fallback broken"
        ((++failed))
    fi
}

test_numeric_uses_first_line_value() {
    if [[ "$(numeric_pick "" "" "temp1:  +27.5°C (high = +84.0°C)")" == "27.5" ]]; then
        echo "✅ numeric_pick parses first native temp"
    else
        echo "❌ numeric_pick native parse broken: got '$(numeric_pick "" "" "+27.5°C")'"
        ((++failed))
    fi
}

test_numeric_empty_is_error() {
    if numeric_pick "" "" "" >/dev/null 2>&1; then
        echo "❌ numeric_pick should fail on no data"
        ((++failed))
    else
        echo "✅ numeric_pick errors on no data"
    fi
}

test_numeric_prefers_external
test_numeric_falls_back_internal
test_numeric_uses_first_line_value
test_numeric_empty_is_error

if ((failed > 0)); then
    echo "❌ $failed numeric-mode test(s) failed"
    exit 1
fi
echo "✅ all numeric-mode tests passed"