// Copyright (C) 2026 Fredrik Öhrström (gpl-3.0-or-later)
driver {
    name           = kadenwater
    meter_type     = WaterMeter
    default_fields = name,id,status,total_m3,timestamp
    manufacturer   = Ecomess
    detect {
        mvt = KDN,01,07
    }
    library {
        use = total_m3
        use = volume_flow_m3h
        use = actuality_duration_s
        use = meter_datetime
        use = fabrication_no
    }
    fields {
        field {
            name       = status
            quantity   = Text
            info       = 'Status and error flags.'
            attributes = STATUS,INCLUDE_TPL_STATUS
            match {
                measurement_type = Instantaneous
                vif_range        = ErrorFlags
            }
            lookup {
                name            = ERROR_FLAGS
                map_type        = BitToString
                mask_bits       = 0xffff
                default_message = OK
                // Help needed. The meaning of the individual error flag bits
                // is not documented for the Kaden type 07 water meter.
            }
        }
        field {
            name     = max_flow
            quantity = Flow
            info     = 'The maximum media volume flow recorded during the measuring period.'
            match {
                measurement_type = Maximum
                vif_range        = VolumeFlow
            }
        }
        field {
            name     = volume_b
            quantity = Volume
            info     = 'Second volume register reported after the total. Purpose is not documented for the Kaden type 07 water meter. Help needed.'
            match {
                measurement_type = Instantaneous
                vif_range        = Volume
                index_nr         = 2
            }
        }
        field {
            name         = duration_b
            quantity     = Time
            display_unit = s
            info         = 'Second actuality duration register (04 74 #2). Purpose is not documented for the Kaden type 07 water meter. Help needed.'
            match {
                measurement_type = Instantaneous
                vif_range        = ActualityDuration
                index_nr         = 2
            }
        }
    }
    tests {
        test {
            args     = 'MyWater kadenwater 19228217 82B0551191F51D66EFCDAB8967452301'
            comment  = 'Ecomess/Kaden type 07 water meter (81.0976 m3)'
            telegram = 4e448e2c1782221901077ab5004005339341ab7927f9337cd2175b2f0d121d9a56cbf3fcfcbf0d8ca57d0c6741a03a666d99467924a6dbf4de305960917afde729ac19d62a789dce1c66a323cc29cd
            json     = '{"_":"telegram","media":"water","meter":"kadenwater","name":"MyWater","id":"19228217","actuality_duration_s":0,"duration_b_s":0,"max_flow_m3h":1.715,"total_m3":81.0976,"volume_b_m3":0.0096,"volume_flow_m3h":0,"fabrication_no":"19228217","meter_datetime":"2026-06-13 19:36","status":"OK","timestamp":"1111-11-11T11:11:11Z"}'
            fields   = 'MyWater;19228217;OK;81.0976;1111-11-11 11:11.11'
        }
        test {
            args     = 'MyWater kadenwater 19227961 82B0551191F51D66EFCDAB8967452301'
            comment  = 'Ecomess/Kaden type 07 water meter (22.761 m3)'
            telegram = 4e448e2c6179221901077ab50040054d008a1ad5270d9cf92952500bd3938ea37fcac71a45d4349fb13c89cfa4aaebd6ecf9caaf1c0710c1d6b4d98f23109cef5fa6fec93fd6a148730ea51102dbcc
            json     = '{"_":"telegram","media":"water","meter":"kadenwater","name":"MyWater","id":"19227961","actuality_duration_s":0,"duration_b_s":0,"max_flow_m3h":1.496,"total_m3":22.761,"volume_b_m3":0.0013,"volume_flow_m3h":0,"fabrication_no":"19227961","meter_datetime":"2026-06-13 19:36","status":"OK","timestamp":"1111-11-11T11:11:11Z"}'
            fields   = 'MyWater;19227961;OK;22.761;1111-11-11 11:11.11'
        }
    }
}