resource "aws_cloudwatch_log_group" "function" {
  name              = "/aws/lambda/${aws_lambda_function.portal_data_sync.function_name}"
  retention_in_days = 14
  tags = merge(var.standard_tags, var.tags)
}

###
### Trigger Portal Sync Lambda with Rules and Targets
###

### Time-based rules for portal sync:
resource "aws_cloudwatch_event_rule" "portal_event_quarter_hourly_rule" {
  name = "aws-portal-lambda-data-sync-quarter-hourly"
  description = "Rule for portal data sync lambda function - every 15 minutes"
  schedule_expression = "rate(15 minutes)"
  is_enabled = var.environment == "test" ? false : true
  tags = merge(var.standard_tags, var.tags)
}

resource "aws_cloudwatch_event_rule" "portal_event_half_hourly_rule" {
  name = "aws-portal-lambda-data-sync-half-hourly"
  description = "Rule for portal data sync lambda function - every 30 minutes"
  schedule_expression = "rate(30 minutes)"
  is_enabled = var.environment == "test" ? false : true
  tags = merge(var.standard_tags, var.tags)
}

resource "aws_cloudwatch_event_rule" "portal_event_hourly_rule" {
  name = "aws-portal-lambda-data-sync-hourly"
  description = "Rule for portal data sync lambda function - every hour"
  schedule_expression = "rate(1 hour)"
  is_enabled = var.environment == "test" ? false : true
  tags = merge(var.standard_tags, var.tags)
}

resource "aws_cloudwatch_event_rule" "portal_event_four_hourly_rule" {
  name = "aws-portal-lambda-data-sync-four-hourly"
  description = "Rule for portal data sync lambda function - every 4 hours"
  schedule_expression = "rate(4 hours)"
  is_enabled = var.environment == "test" ? false : true
  tags = merge(var.standard_tags, var.tags)
}

resource "aws_cloudwatch_event_rule" "portal_event_daily_rule" {
  name = "aws-portal-lambda-data-sync-daily"
  description = "Rule for portal data sync lambda function - every day"
  schedule_expression = "cron(5 5 * * ? *)"
  is_enabled = var.environment == "test" ? false : true
  tags = merge(var.standard_tags, var.tags)
}

resource "aws_cloudwatch_event_rule" "portal_event_weekly_rule" {
  name = "aws-portal-lambda-data-sync-weekly"
  description = "Rule for portal data sync lambda function - every week"
  schedule_expression = "rate(7 days)"
  is_enabled = var.environment == "test" ? false : true
  tags = merge(var.standard_tags, var.tags)
}

resource "aws_cloudwatch_event_rule" "portal_event_monthly_rule" {
  name = "aws-portal-lambda-data-sync-monthly"
  description = "Rule for portal data sync lambda function - every month"
  schedule_expression = "rate(30 days)"
  is_enabled = var.environment == "test" ? false : true
  tags = merge(var.standard_tags, var.tags)
}

### Time-based targets for portal sync:
resource "aws_cloudwatch_event_target" "portal_lambda_cloudwatch_target_quarter_hourly" {
  target_id = "PortalSyncQuarterHourly"
  rule = aws_cloudwatch_event_rule.portal_event_quarter_hourly_rule.name
  input = "{\"frequency_identifier\":\"quarter-hourly\"}"
  arn  = aws_lambda_function.portal_data_sync.arn
}

resource "aws_cloudwatch_event_target" "portal_lambda_cloudwatch_target_half_hourly" {
  target_id = "PortalSyncHalfHourly"
  rule = aws_cloudwatch_event_rule.portal_event_half_hourly_rule.name
  input = "{\"frequency_identifier\":\"half-hourly\"}"
  arn  = aws_lambda_function.portal_data_sync.arn
}

resource "aws_cloudwatch_event_target" "portal_lambda_cloudwatch_target_hourly" {
  target_id = "PortalSyncHourly"
  rule = aws_cloudwatch_event_rule.portal_event_hourly_rule.name
  input = "{\"frequency_identifier\":\"hourly\"}"
  arn  = aws_lambda_function.portal_data_sync.arn
}

resource "aws_cloudwatch_event_target" "portal_lambda_cloudwatch_target_four_hourly" {
  target_id = "PortalSyncFourHourly"
  rule = aws_cloudwatch_event_rule.portal_event_four_hourly_rule.name
  input = "{\"frequency_identifier\":\"four-hourly\"}"
  arn  = aws_lambda_function.portal_data_sync.arn
}

resource "aws_cloudwatch_event_target" "portal_lambda_cloudwatch_target_daily" {
  target_id = "PortalSyncDaily"
  rule = aws_cloudwatch_event_rule.portal_event_daily_rule.name
  input = "{\"frequency_identifier\":\"daily\"}"
  arn  = aws_lambda_function.portal_data_sync.arn
}

resource "aws_cloudwatch_event_target" "portal_lambda_cloudwatch_target_weekly" {
  target_id = "PortalSyncWeekly"
  rule = aws_cloudwatch_event_rule.portal_event_weekly_rule.name
  input = "{\"frequency_identifier\":\"weekly\"}"
  arn  = aws_lambda_function.portal_data_sync.arn
}

resource "aws_cloudwatch_event_target" "portal_lambda_cloudwatch_target_monthly" {
  target_id = "PortalSyncMonthly"
  rule = aws_cloudwatch_event_rule.portal_event_monthly_rule.name
  input = "{\"frequency_identifier\":\"monthly\"}"
  arn  = aws_lambda_function.portal_data_sync.arn
}


### Invoke permissions for Time-based rules for portal sync:
resource "aws_lambda_permission" "allow_cloudwatch_to_call_portal_lambda_quarter_hourly" {
  statement_id  = "AllowExecutionFromCloudWatchQuarterHourly"
  action        = "lambda:InvokeFunction"
  function_name = aws_lambda_function.portal_data_sync.function_name
  principal     = "events.amazonaws.com"
  source_arn    = aws_cloudwatch_event_rule.portal_event_quarter_hourly_rule.arn
}

resource "aws_lambda_permission" "allow_cloudwatch_to_call_portal_lambda_half_hourly" {
  statement_id  = "AllowExecutionFromCloudWatchHalfHourly"
  action        = "lambda:InvokeFunction"
  function_name = aws_lambda_function.portal_data_sync.function_name
  principal     = "events.amazonaws.com"
  source_arn    = aws_cloudwatch_event_rule.portal_event_half_hourly_rule.arn
}

resource "aws_lambda_permission" "allow_cloudwatch_to_call_portal_lambda_hourly" {
  statement_id  = "AllowExecutionFromCloudWatchHourly"
  action        = "lambda:InvokeFunction"
  function_name = aws_lambda_function.portal_data_sync.function_name
  principal     = "events.amazonaws.com"
  source_arn    = aws_cloudwatch_event_rule.portal_event_hourly_rule.arn
}

resource "aws_lambda_permission" "allow_cloudwatch_to_call_portal_lambda_four_hourly" {
  statement_id  = "AllowExecutionFromCloudWatchFourHourly"
  action        = "lambda:InvokeFunction"
  function_name = aws_lambda_function.portal_data_sync.function_name
  principal     = "events.amazonaws.com"
  source_arn    = aws_cloudwatch_event_rule.portal_event_four_hourly_rule.arn
}

resource "aws_lambda_permission" "allow_cloudwatch_to_call_portal_lambda_daily" {
  statement_id  = "AllowExecutionFromCloudWatchDaily"
  action        = "lambda:InvokeFunction"
  function_name = aws_lambda_function.portal_data_sync.function_name
  principal     = "events.amazonaws.com"
  source_arn    = aws_cloudwatch_event_rule.portal_event_daily_rule.arn
}

resource "aws_lambda_permission" "allow_cloudwatch_to_call_portal_lambda_weekly" {
  statement_id  = "AllowExecutionFromCloudWatchWeekly"
  action        = "lambda:InvokeFunction"
  function_name = aws_lambda_function.portal_data_sync.function_name
  principal     = "events.amazonaws.com"
  source_arn    = aws_cloudwatch_event_rule.portal_event_weekly_rule.arn
}

resource "aws_lambda_permission" "allow_cloudwatch_to_call_portal_lambda_monthly" {
  statement_id  = "AllowExecutionFromCloudWatchMonthly"
  action        = "lambda:InvokeFunction"
  function_name = aws_lambda_function.portal_data_sync.function_name
  principal     = "events.amazonaws.com"
  source_arn    = aws_cloudwatch_event_rule.portal_event_monthly_rule.arn
}