# ── Feature metadata ──────────────────────────────────────────────────────────

$FeatureMeta = @{
    Name        = 'DefaultBrowser'
    Description = 'Notify when the default browser does not match the configured app'
    Settings    = @(
        @{
            Key         = 'targetProgId'
            Label       = 'Target ProgId'
            Type        = 'string'
            Default     = 'OperaGXStable'
            Description = 'ProgId of the desired default browser (e.g. OperaGXStable, ChromeHTML, FirefoxURL-308046B0AF4A39CB)'
        }
    )
}

# ── Feature implementation ────────────────────────────────────────────────────

function Invoke-Feature {
    param(
        [hashtable]$Config,
        [hashtable]$State
    )

    if (-not $State) { $State = @{} }
    if (-not $State.ContainsKey('lastShownDate')) { $State['lastShownDate'] = $null }

    $today = (Get-Date).ToString('yyyy-MM-dd')

    # Only notify once per day
    if ($State['lastShownDate'] -eq $today) {
        Write-Log -Level Info -Message 'Already checked today, skipping.' -Feature 'DefaultBrowser'
        return $State
    }

    $regPath = 'HKCU:\Software\Microsoft\Windows\Shell\Associations\UrlAssociations\http\UserChoice'

    try {
        $currentProgId = (Get-ItemProperty -Path $regPath -Name 'ProgId' -ErrorAction Stop).ProgId
    }
    catch {
        Write-Log -Level Warn `
            -Message "Could not read current default browser ProgId from registry: $_" `
            -Feature 'DefaultBrowser'
        return $State
    }

    if ($currentProgId -eq $Config['targetProgId']) {
        Write-Log -Level Info `
            -Message "Default browser OK: '$currentProgId'." `
            -Feature 'DefaultBrowser'
        $State['lastShownDate'] = $today
        return $State
    }

    Write-Log -Level Warn `
        -Message "Default browser mismatch — found '$currentProgId', expected '$($Config['targetProgId'])'." `
        -Feature 'DefaultBrowser'

    # Note: Windows 11 blocks programmatic default-browser changes via registry hash protection.
    # We guide the user to the Settings page instead.
    Show-ToastNotification `
        -Title 'Default Browser' `
        -Body  ("Default browser is '$currentProgId'. Click below to set it to $($Config['targetProgId']).") `
        -Buttons @(
            @{ Label = 'Open Default Apps Settings'; Action = 'ms-settings:defaultapps' },
            @{ Label = 'Dismiss';                    Action = 'dismiss' }
        )

    $State['lastShownDate'] = $today
    return $State
}