Get DA costs from predefined data (#2157)

## Linked Issues/PRs
#2138

## Description
This PR allows the analysis CLI tool to read data from a .csv file. 

Along with that work, I did significant refactoring and. cleanup to help
other engineers use the tool.

There are still some bugs that need to be sorted out as follow-up to
this issue:
#2167
#2164

### Before requesting review
- [x] I have reviewed the code myself
- [x] I have created follow-up issues caused by this PR and linked them
here

---------

Co-authored-by: green <[email protected]>

crates/fuel-gas-price-algorithm/gas-price-analysis/.gitignore

@@ -1,2 +1,4 @@
 Cargo.lock
-gas-price.png
+gas-prices.png
+predefined_data/
+charts/

crates/fuel-gas-price-algorithm/gas-price-analysis/Cargo.toml

@@ -7,8 +7,11 @@ publish = false
 [workspace]
 
 [dependencies]
+anyhow = "1.0.86"
 clap = { version = "4.5.16", features = ["derive"] }
+csv = "1.3.0"
 fuel-gas-price-algorithm = { path = ".." }
 plotters = "0.3.5"
 rand = "0.8.5"
 rand_distr = "0.4.3"
+serde = { version = "1.0.209", features = ["derive"] }

crates/fuel-gas-price-algorithm/gas-price-analysis/src/charts.rs

@@ -1,12 +1,81 @@
 use super::*;
+use std::{
+    fs,
+    path::PathBuf,
+};
+
+pub fn draw_chart(
+    results: SimulationResults,
+    p_comp: i64,
+    d_comp: i64,
+    file_path: &str,
+) -> anyhow::Result<()> {
+    let SimulationResults {
+        gas_prices,
+        exec_gas_prices,
+        da_gas_prices,
+        fullness,
+        bytes_and_costs,
+        actual_profit,
+        projected_profit,
+        pessimistic_costs,
+    } = results;
+
+    let plot_width = 640 * 2 * 2;
+    let plot_height = 480 * 3;
+
+    let path: PathBuf = file_path.into();
+
+    if path.is_dir() {
+        println!("Creating chart at: {}", file_path);
+        fs::create_dir_all(file_path)?;
+    } else {
+        let new_path = path.parent().ok_or(anyhow::anyhow!("Path has no parent"))?;
+        println!("Creating chart at: {}", new_path.display());
+        fs::create_dir_all(new_path)?;
+    }
+    let root =
+        BitMapBackend::new(file_path, (plot_width, plot_height)).into_drawing_area();
+    root.fill(&WHITE).unwrap();
+    let (window_one, lower) = root.split_vertically(plot_height / 4);
+    let (window_two, new_lower) = lower.split_vertically(plot_height / 4);
+    let (window_three, window_four) = new_lower.split_vertically(plot_height / 4);
+
+    draw_fullness(&window_one, &fullness, "Fullness")?;
+
+    draw_bytes_and_cost_per_block(&window_two, &bytes_and_costs, "Bytes Per Block")?;
+
+    draw_profit(
+        &window_three,
+        &actual_profit,
+        &projected_profit,
+        &pessimistic_costs,
+        &format!(
+            "Profit p_comp: {}, d_comp: {}",
+            prettify_number(p_comp),
+            prettify_number(d_comp)
+        ),
+    )?;
+    draw_gas_prices(
+        &window_four,
+        &gas_prices,
+        &exec_gas_prices,
+        &da_gas_prices,
+        "Gas Prices",
+    )?;
+
+    root.present()?;
+
+    Ok(())
+}
 
 pub fn draw_gas_prices(
     drawing_area: &DrawingArea<BitMapBackend, Shift>,
     gas_prices: &[u64],
     _exec_gas_prices: &[u64],
     da_gas_prices: &[u64],
     title: &str,
-) {
+) -> anyhow::Result<()> {
     // const GAS_PRICE_COLOR: RGBColor = BLACK;
     // const EXEC_GAS_PRICE_COLOR: RGBColor = RED;
     const DA_GAS_PRICE_COLOR: RGBColor = BLUE;
@@ -19,15 +88,13 @@ pub fn draw_gas_prices(
         .x_label_area_size(40)
         .y_label_area_size(100)
         .right_y_label_area_size(100)
-        .build_cartesian_2d(0..gas_prices.len(), min..max)
-        .unwrap();
+        .build_cartesian_2d(0..gas_prices.len(), min..max)?;
 
     chart
         .configure_mesh()
         .y_desc("DA Gas Price")
         .x_desc("Block")
-        .draw()
-        .unwrap();
+        .draw()?;
 
     // chart
     //     .draw_series(LineSeries::new(
@@ -55,24 +122,24 @@ pub fn draw_gas_prices(
         .draw_series(LineSeries::new(
             da_gas_prices.iter().enumerate().map(|(x, y)| (x, *y)),
             DA_GAS_PRICE_COLOR,
-        ))
-        .unwrap()
+        ))?
         .label("DA Gas Price")
         .legend(|(x, y)| PathElement::new(vec![(x, y), (x + 20, y)], DA_GAS_PRICE_COLOR));
 
     chart
         .configure_series_labels()
         .background_style(WHITE.mix(0.8))
         .border_style(BLACK)
-        .draw()
-        .unwrap();
+        .draw()?;
+
+    Ok(())
 }
 
 pub fn draw_fullness(
     drawing_area: &DrawingArea<BitMapBackend, Shift>,
     fullness: &Vec<(u64, u64)>,
     title: &str,
-) {
+) -> anyhow::Result<()> {
     const FULLNESS_COLOR: RGBColor = BLACK;
 
     let min = 0;
@@ -84,15 +151,13 @@ pub fn draw_fullness(
         .x_label_area_size(40)
         .y_label_area_size(100)
         .right_y_label_area_size(100)
-        .build_cartesian_2d(0..fullness.len(), min..max)
-        .unwrap();
+        .build_cartesian_2d(0..fullness.len(), min..max)?;
 
     chart
         .configure_mesh()
         .y_desc("Fullness Percentage")
         .x_desc("Block")
-        .draw()
-        .unwrap();
+        .draw()?;
 
     chart
         .draw_series(LineSeries::new(
@@ -111,15 +176,16 @@ pub fn draw_fullness(
         .configure_series_labels()
         .background_style(WHITE.mix(0.8))
         .border_style(BLACK)
-        .draw()
-        .unwrap();
+        .draw()?;
+
+    Ok(())
 }
 
 pub fn draw_bytes_and_cost_per_block(
     drawing_area: &DrawingArea<BitMapBackend, Shift>,
     bytes_and_costs_per_block: &[(u64, u64)],
     title: &str,
-) {
+) -> anyhow::Result<()> {
     const BYTES_PER_BLOCK_COLOR: RGBColor = BLACK;
     let (bytes, costs): (Vec<u64>, Vec<u64>) =
         bytes_and_costs_per_block.iter().cloned().unzip();
@@ -177,25 +243,39 @@ pub fn draw_bytes_and_cost_per_block(
         .border_style(BLACK)
         .draw()
         .unwrap();
+
+    Ok(())
 }
 
 pub fn draw_profit(
     drawing_area: &DrawingArea<BitMapBackend, Shift>,
-    actual_profit: &[i64],
-    projected_profit: &[i64],
-    pessimistic_block_costs: &[u64],
+    actual_profit: &[i128],
+    projected_profit: &[i128],
+    pessimistic_block_costs: &[u128],
     title: &str,
-) {
+) -> anyhow::Result<()> {
     const ACTUAL_PROFIT_COLOR: RGBColor = BLACK;
     const PROJECTED_PROFIT_COLOR: RGBColor = RED;
     const PESSIMISTIC_BLOCK_COST_COLOR: RGBColor = BLUE;
     let min = *std::cmp::min(
-        actual_profit.iter().min().unwrap(),
-        projected_profit.iter().min().unwrap_or(&0),
+        actual_profit
+            .iter()
+            .min()
+            .ok_or(anyhow::anyhow!("Path has no parent"))?,
+        projected_profit
+            .iter()
+            .min()
+            .ok_or(anyhow::anyhow!("Path has no parent"))?,
     );
     let max = *std::cmp::max(
-        actual_profit.iter().max().unwrap(),
-        projected_profit.iter().max().unwrap_or(&0),
+        actual_profit
+            .iter()
+            .max()
+            .ok_or(anyhow::anyhow!("Path has no parent"))?,
+        projected_profit
+            .iter()
+            .max()
+            .ok_or(anyhow::anyhow!("Path has no parent"))?,
     );
 
     let mut chart = ChartBuilder::on(drawing_area)
@@ -215,21 +295,18 @@ pub fn draw_profit(
         .configure_mesh()
         .y_desc("Profit")
         .x_desc("Block")
-        .draw()
-        .unwrap();
+        .draw()?;
 
     chart
         .configure_secondary_axes()
         .y_desc("Pessimistic cost")
-        .draw()
-        .unwrap();
+        .draw()?;
 
     chart
         .draw_series(LineSeries::new(
             actual_profit.iter().enumerate().map(|(x, y)| (x, *y)),
             ACTUAL_PROFIT_COLOR,
-        ))
-        .unwrap()
+        ))?
         .label("Actual Profit")
         .legend(|(x, y)| {
             PathElement::new(vec![(x, y), (x + 20, y)], ACTUAL_PROFIT_COLOR)
@@ -239,8 +316,7 @@ pub fn draw_profit(
         .draw_series(LineSeries::new(
             projected_profit.iter().enumerate().map(|(x, y)| (x, *y)),
             PROJECTED_PROFIT_COLOR,
-        ))
-        .unwrap()
+        ))?
         .label("Projected Profit")
         .legend(|(x, y)| {
             PathElement::new(vec![(x, y), (x + 20, y)], PROJECTED_PROFIT_COLOR)
@@ -254,8 +330,7 @@ pub fn draw_profit(
                 .enumerate()
                 .map(|(x, y)| (x, *y)),
             PESSIMISTIC_BLOCK_COST_COLOR,
-        ))
-        .unwrap()
+        ))?
         .label("Pessimistic Block Costs")
         .legend(|(x, y)| {
             PathElement::new(vec![(x, y), (x + 20, y)], PESSIMISTIC_BLOCK_COST_COLOR)
@@ -265,6 +340,7 @@ pub fn draw_profit(
         .configure_series_labels()
         .background_style(WHITE.mix(0.8))
         .border_style(BLACK)
-        .draw()
-        .unwrap();
+        .draw()?;
+
+    Ok(())
 }