Terraform reusing config blocks - terraform

Question

Terraform noob here. I have a datadog config along the line of (shamelessly copied from terraform website):
resource "datadog_dashboard" "ordered_dashboard" {
title = "Ordered Layout Dashboard"
description = "Created using the Datadog provider in Terraform"
layout_type = "ordered"
is_read_only = true
widget { # SIMILAR GRAPH
alert_graph_definition {
alert_id = "895605"
viz_type = "timeseries"
title = "Widget Title"
live_span = "1h"
}
}
widget { # SIMILAR GRAPH
alert_graph_definition {
alert_id = "895605"
viz_type = "timeseries"
title = "Widget Title"
live_span = "2h"
}
}
widget {
alert_value_definition {
alert_id = "895605"
precision = 3
unit = "b"
text_align = "center"
title = "Widget Title"
}
}
widget { # SIMILAR GRAPH
alert_graph_definition {
alert_id = "895605"
viz_type = "timeseries"
title = "Widget Title"
live_span = "1w"
}
}
widget { # SIMILAR GRAPH
alert_graph_definition {
alert_id = "895605"
viz_type = "timeseries"
title = "Widget Title"
live_span = "2w"
}
}
}
As seen, we have 5 graphs: graph 1,2,4 and 5 are very similar, and only differ at 1 attribute, whereas graph 3 is very different. Is there a strategy in TF to reuse all the configs for graph 1,2 4 and 5?
I have attempted at using dynamic blocks, but while dynamic blocks can generate graphs 1 and 2 well, graph 3 is so different that I cannot fit it in the dynamic block.
In practice, the graphs are much more complex, and there are more of them, hence I find the config to be too hard to manage.
This is what I tried:
resource "datadog_dashboard" "ordered_dashboard" {
title = "Ordered Layout Dashboard"
description = "Created using the Datadog provider in Terraform"
layout_type = "ordered"
is_read_only = true
dynamic widget {
for_each = ["1h", "2h"]
iterator = live_span_iterator
content {
alert_graph_definition {
alert_id = "895605"
viz_type = "timeseries"
title = "Widget Title"
live_span = live_span_iterator.value
}
}
}
widget {
alert_value_definition {
alert_id = "895605"
precision = 3
unit = "b"
text_align = "center"
title = "Widget Title"
}
}
dynamic widget {
for_each = ["1w", "2w"]
iterator = live_span_iterator
content {
alert_graph_definition {
alert_id = "895605"
viz_type = "timeseries"
title = "Widget Title"
live_span = live_span_iterator.value
}
}
}
}
Are there any other strategies that might help me reduce the code duplication? I hope to retain the order of the graphs if possible.