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Merge pull request #109 from Team-40-IDATT2003/enhancement/107-stats-…
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94 changes: 94 additions & 0 deletions
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src/main/java/edu/ntnu/idi/idatt2003/g40/mappe/view/widgets/stats/HoldingData.java
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| package edu.ntnu.idi.idatt2003.g40.mappe.view.widgets.stats; | ||
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| import java.math.BigDecimal; | ||
| import java.math.RoundingMode; | ||
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| /** | ||
| * Immutable data carrier for a single holding shown in {@link StatsView}. | ||
| * | ||
| * <p>Each instance represents an aggregated position in a single stock: | ||
| * the total number of shares owned, the weighted average purchase price, | ||
| * and the current market price. Derived values (value, cost, P&L) are | ||
| * computed on demand.</p> | ||
| * */ | ||
| public final class HoldingData { | ||
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| /** The stock ticker symbol. */ | ||
| private final String ticker; | ||
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| /** Total number of shares owned of this ticker. */ | ||
| private final BigDecimal shares; | ||
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| /** Weighted average purchase price per share. */ | ||
| private final BigDecimal avgPrice; | ||
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| /** Current market price per share. */ | ||
| private final BigDecimal currentPrice; | ||
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| /** | ||
| * Creates a new holding data row. | ||
| * | ||
| * @param ticker the stock ticker symbol. | ||
| * @param shares total number of shares owned. | ||
| * @param avgPrice weighted average purchase price per share. | ||
| * @param currentPrice current market price per share. | ||
| * | ||
| * @throws IllegalArgumentException if any argument is null. | ||
| * */ | ||
| public HoldingData(final String ticker, | ||
| final BigDecimal shares, | ||
| final BigDecimal avgPrice, | ||
| final BigDecimal currentPrice) throws IllegalArgumentException { | ||
| if (ticker == null || shares == null || avgPrice == null || currentPrice == null) { | ||
| throw new IllegalArgumentException("Invalid holding data!"); | ||
| } | ||
| this.ticker = ticker; | ||
| this.shares = shares; | ||
| this.avgPrice = avgPrice; | ||
| this.currentPrice = currentPrice; | ||
| } | ||
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| /** @return the ticker symbol. */ | ||
| public String getTicker() { | ||
| return ticker; | ||
| } | ||
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| /** @return total shares owned. */ | ||
| public BigDecimal getShares() { | ||
| return shares; | ||
| } | ||
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| /** @return weighted average purchase price. */ | ||
| public BigDecimal getAvgPrice() { | ||
| return avgPrice; | ||
| } | ||
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| /** @return current market price. */ | ||
| public BigDecimal getCurrentPrice() { | ||
| return currentPrice; | ||
| } | ||
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| /** @return current market value of this position (shares * currentPrice). */ | ||
| public BigDecimal getValue() { | ||
| return shares.multiply(currentPrice); | ||
| } | ||
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| /** @return total cost paid for this position (shares * avgPrice). */ | ||
| public BigDecimal getCost() { | ||
| return shares.multiply(avgPrice); | ||
| } | ||
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| /** @return absolute profit and loss (value - cost). */ | ||
| public BigDecimal getPnl() { | ||
| return getValue().subtract(getCost()); | ||
| } | ||
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| /** @return profit and loss as a percentage of cost. */ | ||
| public double getPnlPct() { | ||
| BigDecimal cost = getCost(); | ||
| if (cost.signum() == 0) { | ||
| return 0.0; | ||
| } | ||
| return getPnl().divide(cost, 6, RoundingMode.HALF_UP).doubleValue() * 100.0; | ||
| } | ||
| } |
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src/main/java/edu/ntnu/idi/idatt2003/g40/mappe/view/widgets/stats/StatsActions.java
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| package edu.ntnu.idi.idatt2003.g40.mappe.view.widgets.stats; | ||
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| /** | ||
| * Enum representing all interactable actions in {@link StatsView}. | ||
| * | ||
| * <p>The stats widget is mostly an informational dashboard, so it currently | ||
| * has no top-level buttons of its own. {@code SELECT_HOLDING} is reserved | ||
| * for future use when individual holdings rows become clickable.</p> | ||
| * */ | ||
| public enum StatsActions { | ||
| /** Reserved for future holding-row click handling. */ | ||
| SELECT_HOLDING; | ||
| } |
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