--- name: DAW control
--- realearn_version: 2.16.0
--- author: helgoboss
--- device_manufacturer: Generic
--- device_name: Generic
--- description: |
---     This main preset is built for controllers that offer DAW control elements.
---
---     This preset is optimized for controllers with exactly 8 channels. At the moment, the number of channels
---     can only be changed by adjusting the preset source file.
--- used_schemes: [daw]

--!strict

local realearn = require("realearn")

-- ### Configuration ###

-- Number of channels on the surface
local channel_count = 8

-- Rates when pressing button a longer time
local bank_switch_rate = 100
local track_switch_rate = 60
local zoom_rate = 100
local scroll_rate = 100

-- Set `follow_track_selection` to `true` in order to switch between tracks by selecting them.
local follow_track_selection = true
-- Setting this to false is supposed to prevent navigation to the master track when using `follow_track_selection`
-- but doesn't work 100% correctly.
local support_nav_to_master_track = true
local scroll_arrange_view = true
local scroll_mixer = true

-- ### Content ###

local parameters: { realearn.Parameter } = {
    {
        index = 1,
        name = "Seek coarse/fine",
    },
    {
        index = 2,
        name = "Zoom on/off",
    },
}

if not follow_track_selection then
    table.insert(parameters, {
        index = 0,
        name = "Track",
    })
end

local groups: { realearn.Group } = {
    {
        id = "switching",
        name = "Switching",
    },
    {
        id = "volume",
        name = "Volume",
    },
    {
        id = "pan",
        name = "Pan",
    },
    {
        id = "pan-reset",
        name = "Pan reset",
    },
    {
        id = "selection",
        name = "Selection",
    },
    {
        id = "mute",
        name = "Mute",
    },
    {
        id = "solo",
        name = "Solo",
    },
    {
        id = "arm",
        name = "Arm",
    },
    {
        id = "touch",
        name = "Touch",
    },
    {
        id = "transport",
        name = "Transport",
    },
    {
        id = "zoom",
        name = "Zoom",
        activation_condition = realearn.ActivationCondition.Modifier {
            modifiers = {
                {
                    parameter = 2,
                    on = true,
                },
            },
        },
    },
    {
        id = "master",
        name = "Master",
    },
    {
        id = "scroll",
        name = "Scroll",
        activation_condition = realearn.ActivationCondition.Modifier {
            modifiers = {
                {
                    parameter = 2,
                    on = false,
                },
            },
        },
    },
    {
        id = "lcd",
        name = "LCD",
    },
    {
        id = "meter",
        name = "Meter",
    },
    {
        id = "time-modes",
        name = "Time modes",
    },
}

local browse_tracks_target = realearn.Target.BrowseTracks {
    scroll_arrange_view = scroll_arrange_view,
    scroll_mixer = scroll_mixer,
}
local adjust_track_param_target = realearn.Target.FxParameterValue {
    parameter = realearn.FxParameterDescriptor.ById {
        index = 0,
    },
}

local track_switching_target = if follow_track_selection then browse_tracks_target else adjust_track_param_target

local track_bank_step_size_interval = not follow_track_selection and { 0.0008, 0.0008 } or nil
local track_bank_step_factor_interval = follow_track_selection and { 8, 8 } or nil
local track_switch_step_size_interval = not follow_track_selection and { 0.0001, 0.0001 } or nil
local track_switch_step_factor_interval = follow_track_selection and { 1, 1 } or nil

local lcd_assignment_text_feedback = realearn.Feedback.Text {
    text_expression = "{{ target.numeric_value }}",
}
local lcd_assignment_numeric_feedback = realearn.Feedback.Numeric {
    transformation = "x = y + 0.01",
}
local lcd_assignment_browse_tracks_target = realearn.Target.BrowseTracks {}
local lcd_assignment_adjust_track_param_target = realearn.Target.FxParameterValue {
    parameter = realearn.FxParameterDescriptor.ById {
        index = 0,
    },
    poll_for_feedback = false,
}

local mappings: { realearn.Mapping } = {
    {
        id = "5cfd2ff0-85ce-4e70-98e8-eb53e5e94bb1",
        name = "Bank -",
        group = "switching",
        feedback_enabled = false,
        source = realearn.Source.Virtual {
            id = "bank-left",
            character = "Button",
        },
        glue = {
            absolute_mode = "IncrementalButton",
            reverse = true,
            step_size_interval = track_bank_step_size_interval,
            step_factor_interval = track_bank_step_factor_interval,
        },
        target = track_switching_target,
    },
    {
        id = "07b0202f-b8b8-48e4-a530-f228450864f0",
        name = "Bank - faster",
        group = "switching",
        feedback_enabled = false,
        source = realearn.Source.Virtual {
            id = "bank-left",
            character = "Button",
        },
        glue = {
            absolute_mode = "IncrementalButton",
            reverse = true,
            step_size_interval = track_bank_step_size_interval,
            step_factor_interval = track_bank_step_factor_interval,
            fire_mode = realearn.FireMode.AfterTimeoutKeepFiring {
                timeout = 300,
                rate = bank_switch_rate,
            },
        },
        target = track_switching_target,
    },
    {
        id = "0baab91f-2c4e-43ae-8cac-dca727963b46",
        feedback_enabled = false,
        name = "Bank +",
        group = "switching",
        source = realearn.Source.Virtual {
            id = "bank-right",
            character = "Button",
        },
        glue = {
            absolute_mode = "IncrementalButton",
            step_size_interval = track_bank_step_size_interval,
            step_factor_interval = track_bank_step_factor_interval,
        },
        target = track_switching_target,
    },
    {
        id = "0a7e122c-3eda-4355-906a-a057eefa515b",
        feedback_enabled = false,
        name = "Bank + faster",
        group = "switching",
        source = realearn.Source.Virtual {
            id = "bank-right",
            character = "Button",
        },
        glue = {
            absolute_mode = "IncrementalButton",
            step_size_interval = track_bank_step_size_interval,
            step_factor_interval = track_bank_step_factor_interval,
            fire_mode = realearn.FireMode.AfterTimeoutKeepFiring {
                timeout = 300,
                rate = bank_switch_rate,
            },
        },
        target = track_switching_target,
    },
    {
        id = "cf45689a-5537-465d-ad44-460dbebf4802",
        name = "Track -",
        group = "switching",
        feedback_enabled = false,
        source = realearn.Source.Virtual {
            id = "ch-left",
            character = "Button",
        },
        glue = {
            absolute_mode = "IncrementalButton",
            reverse = true,
            step_size_interval = track_switch_step_size_interval,
            step_factor_interval = track_switch_step_factor_interval,
        },
        target = track_switching_target,
    },
    {
        id = "76465b5f-c9b3-4aa6-ba77-b891021cf38e",
        name = "Track - faster",
        group = "switching",
        feedback_enabled = false,
        source = realearn.Source.Virtual {
            id = "ch-left",
            character = "Button",
        },
        glue = {
            absolute_mode = "IncrementalButton",
            reverse = true,
            step_size_interval = track_switch_step_size_interval,
            step_factor_interval = track_switch_step_factor_interval,
            fire_mode = realearn.FireMode.AfterTimeoutKeepFiring {
                timeout = 300,
                rate = track_switch_rate,
            },
        },
        target = track_switching_target,
    },
    {
        id = "d40ffa44-a446-4499-b9d6-787c5ff8e188",
        feedback_enabled = false,
        name = "Track +",
        group = "switching",
        source = realearn.Source.Virtual {
            id = "ch-right",
            character = "Button",
        },
        glue = {
            absolute_mode = "IncrementalButton",
            step_size_interval = track_switch_step_size_interval,
            step_factor_interval = track_switch_step_factor_interval,
        },
        target = track_switching_target,
    },
    {
        id = "97db991c-a15b-4c27-aeb2-04b2ae3242c2",
        name = "Track + faster",
        group = "switching",
        feedback_enabled = false,
        source = realearn.Source.Virtual {
            id = "ch-right",
            character = "Button",
        },
        glue = {
            absolute_mode = "IncrementalButton",
            step_size_interval = track_switch_step_size_interval,
            step_factor_interval = track_switch_step_factor_interval,
            fire_mode = realearn.FireMode.AfterTimeoutKeepFiring {
                timeout = 300,
                rate = track_switch_rate,
            },
        },
        target = track_switching_target,
    },
    {
        id = "afa35458-3160-4f49-bb90-279aae51779f",
        name = "Play/pause",
        group = "transport",
        source = realearn.Source.Virtual {
            id = "play",
            character = "Button",
        },
        glue = {
            absolute_mode = "ToggleButton",
        },
        target = realearn.Target.TransportAction {
            action = "PlayPause",
        },
    },
    {
        id = "67b3a516-246f-43a6-b850-050eb415520a",
        name = "Stop",
        group = "transport",
        source = realearn.Source.Virtual {
            id = "stop",
            character = "Button",
        },
        glue = {
            absolute_mode = "ToggleButton",
            out_of_range_behavior = "Min",
        },
        target = realearn.Target.TransportAction {
            action = "Stop",
        },
    },
    {
        id = "f14ebd63-0127-496d-9acb-281b5a7bb3db",
        name = "Repeat",
        group = "transport",
        source = realearn.Source.Virtual {
            id = "cycle",
            character = "Button",
        },
        glue = {
            absolute_mode = "ToggleButton",
            out_of_range_behavior = "Min",
        },
        target = realearn.Target.TransportAction {
            action = "Repeat",
        },
    },
    {
        id = "00626498-80a6-41d4-bc9f-f273098e3dcf",
        name = "Record",
        group = "transport",
        source = realearn.Source.Virtual {
            id = "record",
            character = "Button",
        },
        glue = {
            absolute_mode = "ToggleButton",
            out_of_range_behavior = "Min",
        },
        target = realearn.Target.TransportAction {
            action = "Record",
        },
    },
    {
        id = "1f827b7b-db04-478a-a05b-36e898f6b245",
        name = "Scrub coarse",
        group = "transport",
        feedback_enabled = false,
        activation_condition = realearn.ActivationCondition.Modifier {
            modifiers = {
                {
                    parameter = 1,
                    on = false,
                },
            },
        },
        source = realearn.Source.Virtual {
            id = "jog",
        },
        target = realearn.Target.ReaperAction {
            command = 992,
            invocation = "Relative",
        },
    },
    {
        id = "a259062e-dfde-4e6c-8e0a-014a078fc1be",
        name = "Scrub fine",
        group = "transport",
        feedback_enabled = false,
        activation_condition = realearn.ActivationCondition.Modifier {
            modifiers = {
                {
                    parameter = 1,
                    on = true,
                },
            },
        },
        source = realearn.Source.Virtual {
            id = "jog",
        },
        glue = {
            step_factor_interval = { 0, 0 },
        },
        target = realearn.Target.ReaperAction {
            command = 974,
            invocation = "Relative",
        },
    },
    {
        id = "1e5c604f-9040-47c0-ab37-a05383e7be00",
        name = "Seek coarse/fine",
        group = "switching",
        source = realearn.Source.Virtual {
            id = "scrub",
            character = "Button",
        },
        glue = {
            absolute_mode = "ToggleButton",
            fire_mode = realearn.FireMode.Normal {
                press_duration_interval = { 0, 250 },
            },
        },
        target = realearn.Target.FxParameterValue {
            parameter = realearn.FxParameterDescriptor.ById {
                index = 1,
            },
        },
    },
    {
        id = "ee81c405-d355-45e0-80b4-913633295193",
        name = "Zoom on/off",
        group = "switching",
        source = realearn.Source.Virtual {
            id = "zoom",
            character = "Button",
        },
        glue = {
            absolute_mode = "ToggleButton",
            fire_mode = realearn.FireMode.Normal {
                press_duration_interval = { 0, 250 },
            },
        },
        target = realearn.Target.FxParameterValue {
            parameter = realearn.FxParameterDescriptor.ById {
                index = 2,
            },
        },
    },
    {
        id = "f13678b1-da81-46a5-b318-861a813d7183",
        name = "Previous",
        group = "transport",
        feedback_enabled = false,
        source = realearn.Source.Virtual {
            id = "rewind",
            character = "Button",
        },
        target = realearn.Target.ReaperAction {
            command = 40172,
            invocation = "Trigger",
        },
    },
    {
        id = "previous-led",
        name = "Previous LED",
        group = "transport",
        control_enabled = false,
        source = realearn.Source.Virtual {
            id = "rewind",
            character = "Button",
        },
        glue = {
            target_interval = { 0, 0.00001 },
        },
        target = realearn.Target.Seek {},
    },
    {
        id = "7f0d2cbb-0346-4229-89dd-db58cac3a460",
        name = "Next",
        group = "transport",
        feedback_enabled = false,
        source = realearn.Source.Virtual {
            id = "fast-fwd",
            character = "Button",
        },
        target = realearn.Target.ReaperAction {
            command = 40173,
            invocation = "Trigger",
        },
    },
    {
        id = "next-led",
        name = "Next LED",
        group = "transport",
        control_enabled = false,
        source = realearn.Source.Virtual {
            id = "fast-fwd",
            character = "Button",
        },
        glue = {
            target_interval = { 0.99999, 1 },
            reverse = true,
        },
        target = realearn.Target.Seek {},
    },
    {
        id = "8b0ce5db-a371-4b4c-9fe8-ca086bc706bf",
        name = "Zoom out horizontally",
        group = "zoom",
        feedback_enabled = false,
        source = realearn.Source.Virtual {
            id = "cursor-left",
            character = "Button",
        },
        glue = {
            absolute_mode = "IncrementalButton",
            reverse = true,
            fire_mode = realearn.FireMode.AfterTimeoutKeepFiring {
                rate = zoom_rate,
            },
        },
        target = realearn.Target.ReaperAction {
            command = 998,
            invocation = "Relative",
        },
    },
    {
        id = "9b6fe0b8-d5f3-438b-9830-6bb782121c2d",
        name = "Zoom in horizontally",
        group = "zoom",
        feedback_enabled = false,
        source = realearn.Source.Virtual {
            id = "cursor-right",
            character = "Button",
        },
        glue = {
            absolute_mode = "IncrementalButton",
            fire_mode = realearn.FireMode.AfterTimeoutKeepFiring {
                rate = zoom_rate,
            },
        },
        target = realearn.Target.ReaperAction {
            command = 998,
            invocation = "Relative",
        },
    },
    {
        id = "c3c34680-0396-4b24-8714-e210062f46cd",
        name = "Zoom out vertically",
        group = "zoom",
        feedback_enabled = false,
        source = realearn.Source.Virtual {
            id = "cursor-down",
            character = "Button",
        },
        glue = {
            fire_mode = realearn.FireMode.AfterTimeoutKeepFiring {
                rate = zoom_rate,
            },
        },
        target = realearn.Target.ReaperAction {
            command = 40112,
            invocation = "Trigger",
        },
    },
    {
        id = "e93e8981-8127-446f-b5d9-34bb576fbc2b",
        name = "Zoom in vertically",
        group = "zoom",
        feedback_enabled = false,
        source = realearn.Source.Virtual {
            id = "cursor-up",
            character = "Button",
        },
        glue = {
            fire_mode = realearn.FireMode.AfterTimeoutKeepFiring {
                rate = zoom_rate,
            },
        },
        target = realearn.Target.ReaperAction {
            command = 40111,
            invocation = "Trigger",
        },
    },
    {
        id = "8b6d4cf5-d4f2-4701-af71-90d839da2318",
        name = "Scroll down",
        group = "scroll",
        feedback_enabled = false,
        source = realearn.Source.Virtual {
            id = "cursor-down",
            character = "Button",
        },
        glue = {
            absolute_mode = "IncrementalButton",
            reverse = true,
            step_factor_interval = { 8, 8 },
            fire_mode = realearn.FireMode.AfterTimeoutKeepFiring {
                rate = scroll_rate,
            },
        },
        target = realearn.Target.ReaperAction {
            command = 989,
            invocation = "Relative",
        },
    },
    {
        id = "b633c2d1-c283-4021-a1fc-76b6abd407b9",
        name = "Scroll up",
        group = "scroll",
        feedback_enabled = false,
        source = realearn.Source.Virtual {
            id = "cursor-up",
            character = "Button",
        },
        glue = {
            absolute_mode = "IncrementalButton",
            step_size_interval = { 0.08, 0.08 },
            step_factor_interval = { 8, 8 },
            fire_mode = realearn.FireMode.AfterTimeoutKeepFiring {
                rate = scroll_rate,
            },
        },
        target = realearn.Target.ReaperAction {
            command = 989,
            invocation = "Relative",
        },
    },
    {
        id = "b9fa3db6-8bed-4c8a-82fa-580d3d0da92c",
        name = "Scroll left",
        group = "scroll",
        feedback_enabled = false,
        source = realearn.Source.Virtual {
            id = "cursor-left",
            character = "Button",
        },
        glue = {
            absolute_mode = "IncrementalButton",
            reverse = true,
            step_factor_interval = { 8, 8 },
            fire_mode = realearn.FireMode.AfterTimeoutKeepFiring {
                rate = scroll_rate,
            },
        },
        target = realearn.Target.ReaperAction {
            command = 40140,
            invocation = "Relative",
        },
    },
    {
        id = "344405d5-b50d-47d4-a22e-aa99a7454a25",
        name = "Scroll right",
        group = "scroll",
        feedback_enabled = false,
        source = realearn.Source.Virtual {
            id = "cursor-right",
            character = "Button",
        },
        glue = {
            absolute_mode = "IncrementalButton",
            reverse = true,
            step_factor_interval = { 8, 8 },
            fire_mode = realearn.FireMode.AfterTimeoutKeepFiring {
                rate = scroll_rate,
            },
        },
        target = realearn.Target.ReaperAction {
            command = 40141,
            invocation = "Relative",
        },
    },
    {
        id = "261067ef-c2f0-41de-b10f-418cc718cf1c",
        name = "Master touch",
        group = "master",
        source = realearn.Source.Virtual {
            id = "main/fader/touch",
            character = "Button",
        },
        target = realearn.Target.TrackAutomationTouchState {
            track = realearn.TrackDescriptor.Master {},
            touched_parameter = "Volume",
        },
    },
    {
        id = "2f45cdf6-bac9-4a97-8a3e-c296d2cc7e0f",
        name = "Master volume",
        group = "master",
        source = realearn.Source.Virtual {
            id = "main/fader",
        },
        target = realearn.Target.TrackVolume {
            track = realearn.TrackDescriptor.Master {},
        },
    },
    {
        id = "970e04c9-e262-478e-85ce-9e84875fb5f5",
        name = "Marker",
        group = "master",
        feedback_enabled = false,
        source = realearn.Source.Virtual {
            id = "marker",
            character = "Button",
        },
        glue = {
            out_of_range_behavior = "Min",
            button_filter = "PressOnly",
        },
        target = realearn.Target.ReaperAction {
            command = 40157,
            invocation = "Trigger",
        },
    },
    {
        id = "c49238b9-189e-42d3-984a-955fe63c46e8",
        name = "Global read",
        group = "master",
        source = realearn.Source.Virtual {
            id = "read",
            character = "Button",
        },
        glue = {
            target_interval = { 1, 1 },
            absolute_mode = "ToggleButton",
        },
        target = realearn.Target.AutomationModeOverride {
            override = realearn.AutomationModeOverride.Mode {
                mode = "Read",
            },
        },
    },
    {
        id = "b805f628-16e1-42ca-ac36-3bb95133815f",
        name = "Global write",
        group = "master",
        source = realearn.Source.Virtual {
            id = "write",
            character = "Button",
        },
        glue = {
            target_interval = { 1, 1 },
            absolute_mode = "ToggleButton",
        },
        target = realearn.Target.AutomationModeOverride {
            override = realearn.AutomationModeOverride.Mode {
                mode = "Touch",
            },
        },
    },
    {
        id = "13d79d42-4d59-4930-a976-b4374e0a69b6",
        name = "Click",
        group = "master",
        source = realearn.Source.Virtual {
            id = "click",
            character = "Button",
        },
        glue = {
            absolute_mode = "ToggleButton",
        },
        target = realearn.Target.ReaperAction {
            command = 40364,
        },
    },
    {
        id = "any-solo",
        name = "Any solo",
        group = "master",
        source = realearn.Source.Virtual {
            id = "solo",
            character = "Button",
        },
        target = realearn.Target.AnyOn {
            parameter = "TrackSolo",
        },
    },
    -- Done
    {
        id = "7b90c136-f89c-477e-b812-525b4a7da5ed",
        name = "Assignment",
        group = "lcd",
        control_enabled = false,
        source = realearn.Source.Virtual {
            id = "lcd/assignment",
        },
        glue = {
            target_interval = if follow_track_selection then nil else { 0, 0.01 },
            feedback = if follow_track_selection then lcd_assignment_text_feedback else lcd_assignment_numeric_feedback,
        },
        target = if follow_track_selection
            then lcd_assignment_browse_tracks_target
            else lcd_assignment_adjust_track_param_target,
    },
    -- Done
    {
        id = "7GFNQfZp9uqovhV5zWtvh",
        name = "Timecode",
        group = "lcd",
        control_enabled = false,
        source = realearn.Source.Virtual {
            id = "lcd/timecode",
        },
        glue = {
            feedback = realearn.Feedback.Text {
                text_expression = "{{ target.position.project_default.mcu }}",
            },
        },
        target = realearn.Target.Seek {
            feedback_resolution = "High",
        },
    },
    -- Time modes
    {
        id = "time-mode-measures-beats",
        name = "Measures.Beats",
        group = "time-modes",
        control_enabled = false,
        source = realearn.Source.Virtual {
            id = "smpte-beats",
            character = "Button",
        },
        glue = {
            source_interval = { 0, 0 },
        },
        target = realearn.Target.ReaperAction {
            command = 40411,
            invocation = "Trigger",
        },
    },
    {
        id = "time-mode-seconds",
        name = "Seconds",
        group = "time-modes",
        control_enabled = false,
        source = realearn.Source.Virtual {
            id = "smpte-beats",
            character = "Button",
        },
        target = realearn.Target.ReaperAction {
            command = 40412,
            invocation = "Trigger",
        },
    },
    {
        id = "time-mode-samples",
        name = "Samples",
        group = "time-modes",
        control_enabled = false,
        source = realearn.Source.Virtual {
            id = "smpte-beats",
            character = "Button",
        },
        target = realearn.Target.ReaperAction {
            command = 40413,
            invocation = "Trigger",
        },
    },
    {
        id = "time-mode-hmsf",
        name = "Hours:Minutes:Seconds:Frames",
        group = "time-modes",
        control_enabled = false,
        source = realearn.Source.Virtual {
            id = "smpte-beats",
            character = "Button",
        },
        target = realearn.Target.ReaperAction {
            command = 40414,
            invocation = "Trigger",
        },
    },
    {
        id = "time-mode-absolute-frames",
        name = "Absolute Frames",
        group = "time-modes",
        control_enabled = false,
        source = realearn.Source.Virtual {
            id = "smpte-beats",
            character = "Button",
        },
        target = realearn.Target.ReaperAction {
            command = 41972,
            invocation = "Trigger",
        },
    },
    {
        id = "time-mode-minutes-seconds",
        name = "Minutes:Seconds",
        group = "time-modes",
        control_enabled = false,
        source = realearn.Source.Virtual {
            id = "smpte-beats",
            character = "Button",
        },
        target = realearn.Target.ReaperAction {
            command = 40410,
            invocation = "Trigger",
        },
    },
    {
        id = "cycle-time-modes",
        name = "Cycle time modes",
        group = "master",
        feedback_enabled = false,
        source = realearn.Source.Virtual {
            id = "smpte-beats",
            character = "Button",
        },
        glue = {
            absolute_mode = "IncrementalButton",
            wrap = true,
        },
        target = realearn.Target.BrowseGroupMappings {
            group = "time-modes",
        },
    },
}

-- For each channel
for ch = 0, channel_count - 1 do
    local human_ch = ch + 1
    local prefix = "ch" .. human_ch .. "/"
    local track_expression_incl_master_track = "((selected_track_index != none) && selected_track_index || 0) + " .. ch
    local track_expression_excl_master_track = "max(selected_track_index, 0) + " .. ch
    local track_expression_via_track_selection = if support_nav_to_master_track
        then track_expression_incl_master_track
        else track_expression_excl_master_track
    local track_expression_via_parameter = "p[0] * 10000 + " .. ch
    local track_expression = if follow_track_selection
        then track_expression_via_track_selection
        else track_expression_via_parameter
    local track_volume = realearn.Mapping {
        id = prefix .. "vol",
        name = "Tr" .. human_ch .. " Vol",
        group = "volume",
        source = realearn.Source.Virtual {
            id = prefix .. "fader",
        },
        target = realearn.Target.TrackVolume {
            track = realearn.TrackDescriptor.Dynamic {
                expression = track_expression,
            },
        },
    }
    local track_pan_control = realearn.Mapping {
        id = prefix .. "pan",
        name = "Tr" .. human_ch .. " Pan",
        group = "pan",
        source = realearn.Source.Virtual {
            id = prefix .. "v-pot",
        },
        glue = {
            step_size_interval = { 0.005, 1.0 },
        },
        target = realearn.Target.TrackPan {
            track = realearn.TrackDescriptor.Dynamic {
                expression = track_expression,
            },
        },
    }
    local track_pan_feedback = realearn.Mapping {
        id = prefix .. "pan/feedback",
        name = "Tr" .. human_ch .. " Pan Feedback",
        control_enabled = false,
        group = "pan",
        source = realearn.Source.Virtual {
            id = prefix .. "v-pot/boost-cut",
        },
        target = realearn.Target.TrackPan {
            track = realearn.TrackDescriptor.Dynamic {
                expression = track_expression,
            },
        },
    }
    local track_pan_reset = realearn.Mapping {
        id = prefix .. "pan/reset",
        name = "Tr" .. human_ch .. " Pan Reset",
        feedback_enabled = false,
        group = "pan-reset",
        source = realearn.Source.Virtual {
            id = prefix .. "v-select",
            character = "Button",
        },
        glue = {
            target_interval = { 0.5, 0.5 },
        },
        target = realearn.Target.TrackPan {
            track = realearn.TrackDescriptor.Dynamic {
                expression = track_expression,
            },
        },
    }
    local track_selection = realearn.Mapping {
        id = prefix .. "selection",
        name = "Tr" .. human_ch .. " Selection",
        group = "selection",
        source = realearn.Source.Virtual {
            id = prefix .. "select",
            character = "Button",
        },
        glue = {
            absolute_mode = "ToggleButton",
        },
        target = realearn.Target.TrackSelectionState {
            track = realearn.TrackDescriptor.Dynamic {
                expression = track_expression,
            },
            scroll_mixer = true,
        },
    }
    local track_mute = realearn.Mapping {
        id = prefix .. "mute",
        name = "Tr" .. human_ch .. " Mute",
        group = "mute",
        source = realearn.Source.Virtual {
            id = prefix .. "mute",
            character = "Button",
        },
        glue = {
            absolute_mode = "ToggleButton",
        },
        target = realearn.Target.TrackMuteState {
            track = realearn.TrackDescriptor.Dynamic {
                expression = track_expression,
            },
        },
    }
    local track_solo = realearn.Mapping {
        id = prefix .. "solo",
        name = "Tr" .. human_ch .. " Solo",
        group = "solo",
        source = {
            kind = "Virtual",
            id = prefix .. "solo",
            character = "Button",
        },
        glue = {
            absolute_mode = "ToggleButton",
        },
        target = realearn.Target.TrackSoloState {
            track = realearn.TrackDescriptor.Dynamic {
                expression = track_expression,
            },
        },
    }
    local track_arm = realearn.Mapping {
        id = prefix .. "arm",
        name = "Tr" .. human_ch .. " Arm",
        group = "arm",
        source = realearn.Source.Virtual {
            id = prefix .. "record-ready",
            character = "Button",
        },
        glue = {
            absolute_mode = "ToggleButton",
        },
        target = realearn.Target.TrackArmState {
            track = realearn.TrackDescriptor.Dynamic {
                expression = track_expression,
            },
        },
    }
    local track_touch = realearn.Mapping {
        id = prefix .. "touch",
        name = "Tr" .. human_ch .. " Touch",
        group = "touch",
        source = realearn.Source.Virtual {
            id = prefix .. "fader/touch",
            character = "Button",
        },
        target = realearn.Target.TrackAutomationTouchState {
            track = realearn.TrackDescriptor.Dynamic {
                expression = track_expression,
            },
            touched_parameter = "Volume",
        },
    }
    -- Done
    local track_name_display = realearn.Mapping {
        id = prefix .. "name",
        name = "Tr" .. human_ch .. " Name",
        group = "lcd",
        control_enabled = false,
        source = realearn.Source.Virtual {
            id = prefix .. "lcd/line1",
        },
        glue = {
            feedback = realearn.Feedback.Text {
                color = realearn.PropColor {
                    prop = "target.track.color",
                },
                text_expression = "{{ target.track.name }}",
            },
        },
        target = realearn.Target.TrackTool {
            track = realearn.TrackDescriptor.Dynamic {
                expression = track_expression,
            },
        },
    }
    -- Done
    local track_pan_display = realearn.Mapping {
        id = prefix .. "pan/lcd",
        name = "Tr" .. human_ch .. " Pan LCD",
        group = "lcd",
        control_enabled = false,
        source = realearn.Source.Virtual {
            id = prefix .. "lcd/line2",
        },
        glue = {
            feedback = realearn.Feedback.Text {
                kind = "Text",
                text_expression = "{{ target.pan.mcu }}",
            },
        },
        target = realearn.Target.TrackPan {
            track = realearn.TrackDescriptor.Dynamic {
                expression = track_expression,
            },
        },
    }
    -- Done
    local track_peak = {
        id = prefix .. "peak",
        name = "Tr" .. human_ch .. " Peaks",
        group = "meter",
        control_enabled = false,
        source = realearn.Source.Virtual {
            id = prefix .. "meter/peak",
        },
        target = realearn.Target.TrackPeak {
            track = realearn.TrackDescriptor.Dynamic {
                expression = track_expression,
            },
        },
    }
    table.insert(mappings, track_volume)
    table.insert(mappings, track_pan_control)
    table.insert(mappings, track_pan_feedback)
    table.insert(mappings, track_pan_reset)
    table.insert(mappings, track_selection)
    table.insert(mappings, track_mute)
    table.insert(mappings, track_solo)
    table.insert(mappings, track_arm)
    table.insert(mappings, track_touch)
    table.insert(mappings, track_name_display)
    table.insert(mappings, track_pan_display)
    table.insert(mappings, track_peak)
end

return realearn.Compartment {
    parameters = parameters,
    groups = groups,
    mappings = mappings,
}