// Application Insights module

@description('The environment name (DEV, IAT, Prod)')
param environment string

@description('The location for Application Insights')
param location string

@description('Tags to apply to resources')
param tags object

@description('Unique token for resource naming')
param resourceToken string

@description('Key Vault name for storing connection string')
param keyVaultName string

var appInsightsName = 'appi-dbp-${toLower(environment)}-${resourceToken}'
var logAnalyticsWorkspaceName = 'log-dbp-${toLower(environment)}-${resourceToken}'

resource logAnalyticsWorkspace 'Microsoft.OperationalInsights/workspaces@2025-02-01' = {
  name: logAnalyticsWorkspaceName
  location: location
  tags: tags
  properties: {
    sku: {
      name: 'PerGB2018'
    }
    retentionInDays: environment == 'Prod' ? 90 : 30
    features: {
      enableLogAccessUsingOnlyResourcePermissions: true
    }
  }
}

resource applicationInsights 'Microsoft.Insights/components@2020-02-02' = {
  name: appInsightsName
  location: location
  tags: tags
  kind: 'web'
  properties: {
    Application_Type: 'web'
    WorkspaceResourceId: logAnalyticsWorkspace.id
    IngestionMode: 'LogAnalytics'
    publicNetworkAccessForIngestion: 'Enabled'
    publicNetworkAccessForQuery: 'Enabled'
  }
}


resource keyVault 'Microsoft.KeyVault/vaults@2024-11-01' existing = {
  name: keyVaultName
}

resource connectionStringSecret 'Microsoft.KeyVault/vaults/secrets@2024-11-01' = {
  parent: keyVault
  name: 'applicationinsights-connection-string'
  properties: {
    value: applicationInsights.properties.ConnectionString
    attributes: {
      enabled: true
    }
  }
}

output applicationInsightsName string = applicationInsights.name
output applicationInsightsId string = applicationInsights.id
output connectionString string = applicationInsights.properties.ConnectionString
output instrumentationKey string = applicationInsights.properties.InstrumentationKey
output logAnalyticsWorkspaceId string = logAnalyticsWorkspace.id
output logAnalyticsWorkspaceName string = logAnalyticsWorkspace.name