import QtQuick
import QtQuick.Layouts
import Quickshell.Io
import qs.Common
import qs.Widgets

// Registered as plugin.json's "settings" key - the only thing shown in
// DMS's global Settings -> Plugins -> Dank Chat area, by explicit user
// direction (this pane started empty and gets exactly what's asked for,
// nothing assumed beyond it). Per-protocol chat settings (message
// filters, connection defaults, SASL, etc.) live in ChatSettings.qml
// instead, reachable from inside the chat panel's own three-dot menu -
// "is the background daemon actually running" is a different, always-
// relevant concern from any of that.
//
// DMS's own PluginsTab (see PluginListItem.qml's settingsLoader) injects
// `pluginService` into any loaded settings component that declares the
// property, the same way it does for every other plugin's "settings" -
// no manual embedding needed here, unlike ChatSettings.qml's in-panel
// case (which isn't reached through this normal path at all).
Item {
    id: root

    property var pluginService: null
    property bool chatdConnected: false

    function refreshStatus() {
        root.chatdConnected = root.pluginService ? !!root.pluginService.getGlobalVar("dankChat", "chatdConnected", false) : false;
    }

    Component.onCompleted: {
        root.refreshStatus();
        root.checkGitBranch();
    }
    onPluginServiceChanged: {
        root.refreshStatus();
        root.checkGitBranch();
    }

    // Which checkout this running plugin is actually loaded from - see
    // /home/ultra/.claude memory on the development-branch workflow:
    // "master" is the stable build users should be running day to day,
    // "development" is where bug fixes/new features land first. Read live
    // via git rather than baked in at some build step, since this plugin
    // has no such step at all (the QML is interpreted directly from
    // whatever's currently checked out) - so this always reflects the
    // real current state, including mid-session branch switches once the
    // plugin's settings page is reopened.
    readonly property string pluginDir: {
        if (root.pluginService) {
            const p = root.pluginService.getPluginPath("dankChat");
            if (p)
                return p.endsWith("/") ? p : p + "/";
        }
        // Fallback matches ChatDaemon.qml's own pluginDir - this settings
        // pane's QML file lives in the plugin's own directory regardless of
        // whether pluginService.getPluginPath() comes through, since the
        // component is loaded directly off disk either way.
        const dirUrl = Qt.resolvedUrl(".").toString();
        return dirUrl.replace(/^file:\/\//, "");
    }
    property string gitBranch: ""
    readonly property string buildLabel: {
        if (root.gitBranch === "master")
            return "Production";
        if (root.gitBranch === "development")
            return "Development";
        if (root.gitBranch === "")
            return "Unknown";
        return root.gitBranch; // some other branch - show it verbatim rather than guessing
    }
    readonly property color buildLabelColor: {
        if (root.gitBranch === "master")
            return Theme.primary;
        if (root.gitBranch === "development")
            return Theme.warning;
        return Theme.surfaceVariantText;
    }

    function checkGitBranch() {
        if (root.pluginDir && !gitBranchProcess.running)
            gitBranchProcess.running = true;
    }

    onPluginDirChanged: root.checkGitBranch()

    Process {
        id: gitBranchProcess
        running: false
        command: ["git", "-C", root.pluginDir, "rev-parse", "--abbrev-ref", "HEAD"]
        stdout: StdioCollector {
            onStreamFinished: root.gitBranch = (text || "").trim()
        }
    }

    // getGlobalVar() is a plain function call, not a property read - QML's
    // binding dependency tracking can't auto-refresh from that, so this
    // has to explicitly re-poll on the one signal that means the value
    // might have changed instead of binding chatdConnected directly.
    Connections {
        target: root.pluginService
        enabled: root.pluginService !== null
        function onGlobalVarChanged(changedPluginId, varName) {
            if (changedPluginId === "dankChat" && varName === "chatdConnected")
                root.refreshStatus();
        }
    }

    implicitHeight: content.implicitHeight
    height: implicitHeight

    ColumnLayout {
        id: content
        width: parent.width
        spacing: Theme.spacingM

        StyledText {
            Layout.fillWidth: true
            text: "Chat Daemon"
            font.pixelSize: Theme.fontSizeLarge
            font.weight: Font.Medium
            color: Theme.surfaceText
        }

        StyledText {
            Layout.fillWidth: true
            text: "The background process (chatd) that actually talks to IRC/XMPP servers on Dank Chat's behalf. If it's not running, no account can connect regardless of what's configured for it."
            wrapMode: Text.WordWrap
            color: Theme.surfaceVariantText
        }

        RowLayout {
            Layout.fillWidth: true
            spacing: Theme.spacingS

            Rectangle {
                width: 10
                height: 10
                radius: 5
                color: root.chatdConnected ? Theme.primary : Theme.error
            }

            StyledText {
                text: root.chatdConnected ? "Running" : "Not running"
                color: Theme.surfaceText
                font.weight: Font.Medium
            }
        }

        Rectangle {
            Layout.fillWidth: true
            height: 1
            color: Theme.outlineMedium
        }

        StyledText {
            Layout.fillWidth: true
            text: "Build"
            font.pixelSize: Theme.fontSizeLarge
            font.weight: Font.Medium
            color: Theme.surfaceText
        }

        RowLayout {
            Layout.fillWidth: true
            spacing: Theme.spacingS

            Rectangle {
                radius: Theme.cornerRadius
                color: Theme.withAlpha(root.buildLabelColor, 0.18)
                implicitWidth: buildLabelText.implicitWidth + Theme.spacingM * 2
                implicitHeight: buildLabelText.implicitHeight + Theme.spacingXS * 2

                StyledText {
                    id: buildLabelText
                    anchors.centerIn: parent
                    text: root.buildLabel
                    color: root.buildLabelColor
                    font.weight: Font.Bold
                    font.pixelSize: Theme.fontSizeSmall
                }
            }

            StyledText {
                text: root.gitBranch ? ("(" + root.gitBranch + " branch)") : ""
                visible: text !== ""
                color: Theme.surfaceVariantText
                font.pixelSize: Theme.fontSizeSmall
            }
        }

        DankButton {
            Layout.alignment: Qt.AlignLeft
            text: "Restart daemon"
            onClicked: {
                if (root.pluginService)
                    root.pluginService.setGlobalVar("dankChat", "restartNonce", Date.now());
            }
        }
    }
}