@description('Environment (dev, staging, prod)')
param environment string = 'prod'

@description('Azure region for resources')
param location string = resourceGroup().location

@description('Stripe public key for payments')
@secure()
param stripePublicKey string

// Variables
var uniqueSuffix = substring(uniqueString(resourceGroup().id), 0, 6)

// Cosmos DB Account
resource cosmosAccount 'Microsoft.DocumentDB/databaseAccounts@2024-05-15' = {
  name: 'mim-${environment}-${uniqueSuffix}-cosmos'
  location: location
  kind: 'GlobalDocumentDB'
  properties: {
    databaseAccountOfferType: 'Standard'
    consistencyPolicy: {
      defaultConsistencyLevel: 'Session'
    }
    locations: [
      {
        locationName: location
        failoverPriority: 0
        isZoneRedundant: false
      }
    ]
    capabilities: [
      {
        name: 'EnableServerless'
      }
    ]
    backupPolicy: {
      type: 'Periodic'
      periodicModeProperties: {
        backupIntervalInMinutes: 240
        backupRetentionIntervalInHours: 720
        backupStorageRedundancy: 'Local'
      }
    }
  }
}

// Cosmos DB Database
resource cosmosDatabase 'Microsoft.DocumentDB/databaseAccounts/sqlDatabases@2024-05-15' = {
  parent: cosmosAccount
  name: 'MiraclesInMotion'
  properties: {
    resource: {
      id: 'MiraclesInMotion'
    }
  }
}

// Cosmos DB Containers
resource donationsContainer 'Microsoft.DocumentDB/databaseAccounts/sqlDatabases/containers@2024-05-15' = {
  parent: cosmosDatabase
  name: 'donations'
  properties: {
    resource: {
      id: 'donations'
      partitionKey: {
        paths: ['/id']
        kind: 'Hash'
      }
      indexingPolicy: {
        indexingMode: 'consistent'
        automatic: true
        includedPaths: [
          {
            path: '/*'
          }
        ]
      }
    }
  }
}

resource volunteersContainer 'Microsoft.DocumentDB/databaseAccounts/sqlDatabases/containers@2024-05-15' = {
  parent: cosmosDatabase
  name: 'volunteers'
  properties: {
    resource: {
      id: 'volunteers'
      partitionKey: {
        paths: ['/id']
        kind: 'Hash'
      }
    }
  }
}

resource programsContainer 'Microsoft.DocumentDB/databaseAccounts/sqlDatabases/containers@2024-05-15' = {
  parent: cosmosDatabase
  name: 'programs'
  properties: {
    resource: {
      id: 'programs'
      partitionKey: {
        paths: ['/id']
        kind: 'Hash'
      }
    }
  }
}

// Key Vault
resource keyVault 'Microsoft.KeyVault/vaults@2024-04-01-preview' = {
  name: 'mim${environment}${uniqueSuffix}kv'
  location: location
  properties: {
    sku: {
      family: 'A'
      name: 'standard'
    }
    tenantId: tenant().tenantId
    accessPolicies: []
    enabledForDeployment: false
    enabledForDiskEncryption: false
    enabledForTemplateDeployment: true
    enableSoftDelete: true
    softDeleteRetentionInDays: 90
    enableRbacAuthorization: true
  }
}

// Application Insights
resource appInsights 'Microsoft.Insights/components@2020-02-02' = {
  name: 'mim-${environment}-${uniqueSuffix}-insights'
  location: location
  kind: 'web'
  properties: {
    Application_Type: 'web'
    WorkspaceResourceId: logAnalyticsWorkspace.id
  }
}

// Log Analytics Workspace
resource logAnalyticsWorkspace 'Microsoft.OperationalInsights/workspaces@2023-09-01' = {
  name: 'mim-${environment}-${uniqueSuffix}-logs'
  location: location
  properties: {
    sku: {
      name: 'PerGB2018'
    }
    retentionInDays: 30
  }
}

// Storage Account for Functions
resource storageAccount 'Microsoft.Storage/storageAccounts@2023-01-01' = {
  name: 'mim${environment}${uniqueSuffix}st'
  location: location
  sku: {
    name: 'Standard_LRS'
  }
  kind: 'StorageV2'
  properties: {
    accessTier: 'Hot'
    supportsHttpsTrafficOnly: true
    minimumTlsVersion: 'TLS1_2'
  }
}

// App Service Plan
resource appServicePlan 'Microsoft.Web/serverfarms@2023-01-01' = {
  name: 'mim-${environment}-${uniqueSuffix}-plan'
  location: location
  sku: {
    name: 'Y1'
    tier: 'Dynamic'
  }
  properties: {
    reserved: false
  }
}

// Function App
resource functionApp 'Microsoft.Web/sites@2023-01-01' = {
  name: 'mim-${environment}-${uniqueSuffix}-func'
  location: location
  kind: 'functionapp'
  identity: {
    type: 'SystemAssigned'
  }
  properties: {
    serverFarmId: appServicePlan.id
    siteConfig: {
      appSettings: [
        {
          name: 'AzureWebJobsStorage'
          value: 'DefaultEndpointsProtocol=https;AccountName=${storageAccount.name};AccountKey=${storageAccount.listKeys().keys[0].value};EndpointSuffix=core.windows.net'
        }
        {
          name: 'WEBSITE_CONTENTAZUREFILECONNECTIONSTRING'
          value: 'DefaultEndpointsProtocol=https;AccountName=${storageAccount.name};AccountKey=${storageAccount.listKeys().keys[0].value};EndpointSuffix=core.windows.net'
        }
        {
          name: 'WEBSITE_CONTENTSHARE'
          value: toLower('mim-${environment}-func')
        }
        {
          name: 'FUNCTIONS_EXTENSION_VERSION'
          value: '~4'
        }
        {
          name: 'FUNCTIONS_WORKER_RUNTIME'
          value: 'node'
        }
        {
          name: 'WEBSITE_NODE_DEFAULT_VERSION'
          value: '~22'
        }
        {
          name: 'APPINSIGHTS_INSTRUMENTATIONKEY'
          value: appInsights.properties.InstrumentationKey
        }
        {
          name: 'APPLICATIONINSIGHTS_CONNECTION_STRING'
          value: appInsights.properties.ConnectionString
        }
        {
          name: 'COSMOS_CONNECTION_STRING'
          value: cosmosAccount.listConnectionStrings().connectionStrings[0].connectionString
        }
        {
          name: 'COSMOS_DATABASE_NAME'
          value: 'MiraclesInMotion'
        }
        {
          name: 'KEY_VAULT_URL'
          value: keyVault.properties.vaultUri
        }
        {
          name: 'STRIPE_PUBLIC_KEY'
          value: stripePublicKey
        }
      ]
    }
    httpsOnly: true
  }
}

// SignalR Service
resource signalR 'Microsoft.SignalRService/signalR@2023-02-01' = {
  name: 'mim-${environment}-${uniqueSuffix}-signalr'
  location: location
  sku: {
    name: 'Free_F1'
    capacity: 1
  }
  kind: 'SignalR'
  properties: {
    features: [
      {
        flag: 'ServiceMode'
        value: 'Serverless'
      }
    ]
    cors: {
      allowedOrigins: ['*']
    }
  }
}

// Static Web App
resource staticWebApp 'Microsoft.Web/staticSites@2023-01-01' = {
  name: 'mim-${environment}-${uniqueSuffix}-web'
  location: 'Central US'
  sku: {
    name: 'Free'
  }
  properties: {
    buildProperties: {
      outputLocation: 'dist'
      apiLocation: ''
      appLocation: '/'
    }
    stagingEnvironmentPolicy: 'Enabled'
  }
}

// Key Vault Secrets
resource cosmosConnectionStringSecret 'Microsoft.KeyVault/vaults/secrets@2023-07-01' = {
  parent: keyVault
  name: 'cosmos-connection-string'
  properties: {
    value: cosmosAccount.listConnectionStrings().connectionStrings[0].connectionString
  }
}

resource signalRConnectionStringSecret 'Microsoft.KeyVault/vaults/secrets@2023-07-01' = {
  parent: keyVault
  name: 'signalr-connection-string'
  properties: {
    value: signalR.listKeys().primaryConnectionString
  }
}

// RBAC Assignments for Function App
resource keyVaultSecretsUserRole 'Microsoft.Authorization/roleAssignments@2022-04-01' = {
  name: guid(keyVault.id, functionApp.id, 'Key Vault Secrets User')
  scope: keyVault
  properties: {
    roleDefinitionId: subscriptionResourceId('Microsoft.Authorization/roleDefinitions', '4633458b-17de-408a-b874-0445c86b69e6') // Key Vault Secrets User
    principalId: functionApp.identity.principalId
    principalType: 'ServicePrincipal'
  }
}

// Outputs
output resourceGroupName string = resourceGroup().name
output cosmosAccountName string = cosmosAccount.name
output functionAppName string = functionApp.name
output staticWebAppName string = staticWebApp.name
output keyVaultName string = keyVault.name
output appInsightsName string = appInsights.name
output signalRName string = signalR.name
output functionAppUrl string = 'https://${functionApp.properties.defaultHostName}'
output staticWebAppUrl string = 'https://${staticWebApp.properties.defaultHostname}'