// Fallback inventory parsing for the per-file dump_<serial>_<timestamp>/ onekeylog
// layout, which has no combined devicefrusdr.log. Instead FRU and sensors live in
// separate ipmitool-output text files under component/.
package inspur

import (
	"bufio"
	"strconv"
	"strings"

	"git.mchus.pro/mchus/logpile/internal/models"
)

// ParseSensorList parses component/sensor.txt ("ipmitool sensor list" output).
// Line format: Name | Value | Unit | Status | lnr | lcr | lnc | unc | ucr | unr
func ParseSensorList(content []byte) []models.SensorReading {
	var readings []models.SensorReading

	scanner := bufio.NewScanner(strings.NewReader(string(content)))
	for scanner.Scan() {
		line := strings.TrimSpace(scanner.Text())
		if line == "" || !strings.Contains(line, "|") {
			continue
		}
		fields := strings.Split(line, "|")
		if len(fields) < 4 {
			continue
		}
		name := strings.TrimSpace(fields[0])
		valueStr := strings.TrimSpace(fields[1])
		unit := strings.TrimSpace(fields[2])
		status := strings.TrimSpace(fields[3])
		if name == "" {
			continue
		}

		reading := models.SensorReading{
			Name:   name,
			Status: status,
			Unit:   unit,
			Type:   determineSensorType(name),
		}

		if valueStr != "" && valueStr != "na" {
			if v, err := strconv.ParseFloat(valueStr, 64); err == nil {
				reading.Value = v
				reading.RawValue = valueStr + " " + unit
			} else {
				reading.RawValue = valueStr
			}
		}

		readings = append(readings, reading)
	}

	return readings
}

// ParseSDRElist parses component/sdr.txt ("ipmitool sdr elist" output), used as a
// fallback when component/sensor.txt is unavailable.
// Line format: Name | ID | Status | Entity | Reading (e.g. "21 degrees C" or "no reading")
func ParseSDRElist(content []byte) []models.SensorReading {
	var readings []models.SensorReading

	scanner := bufio.NewScanner(strings.NewReader(string(content)))
	for scanner.Scan() {
		line := strings.TrimSpace(scanner.Text())
		if line == "" || !strings.Contains(line, "|") {
			continue
		}
		fields := strings.Split(line, "|")
		if len(fields) < 3 {
			continue
		}
		name := strings.TrimSpace(fields[0])
		status := strings.TrimSpace(fields[2])
		if name == "" {
			continue
		}

		reading := models.SensorReading{
			Name:   name,
			Status: status,
			Type:   determineSensorType(name),
		}

		if len(fields) >= 5 {
			readingStr := strings.TrimSpace(fields[4])
			if readingStr != "" && readingStr != "no reading" {
				reading.RawValue = readingStr
				if m := valueRegex.FindStringSubmatch(readingStr); m != nil {
					if v, err := strconv.ParseFloat(m[1], 64); err == nil {
						reading.Value = v
						reading.Unit = strings.TrimSpace(m[2])
					}
				}
			}
		}

		readings = append(readings, reading)
	}

	return readings
}