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import l10n from "shared/lib/lang/l10n";
import { Constant, VariableType } from "shared/lib/resources/types";
import {
isScriptDataTable,
ScriptDataTable,
} from "shared/lib/scriptDataTable/types";
import { ScriptVariableElement } from "shared/lib/scriptValue/types";
export type DataTableCSVVariable = {
id: string;
name: string;
type: VariableType;
length?: number;
};
export type NewDataTableCSVVariable = {
placeholder: string;
name: string;
type: VariableType;
length?: number;
};
export type ScriptDataTableImport = {
dataTable: ScriptDataTable;
newVariables: NewDataTableCSVVariable[];
};
const scriptDataTableVariableToCSV = (
variable: ScriptVariableElement,
variablesLookup: Record<string, DataTableCSVVariable | undefined>,
): string => {
const variableName = variablesLookup[variable.value]?.name ?? variable.value;
return variable.index
? `${variableName}[${variable.index.value}]`
: variableName;
};
const parseCSVVariable = (value: string): { name: string; index?: number } => {
const match = value.match(/^(.*)\[(-?\d+)\]$/);
if (!match) {
return { name: value };
}
return {
name: match[1],
index: Number(match[2]),
};
};
const resolveCSVVariable = (
name: string,
index: number | undefined,
availableVariables: DataTableCSVVariable[],
): DataTableCSVVariable | undefined => {
const expectedType: VariableType = index === undefined ? "number" : "array";
const validateMatch = (variable: DataTableCSVVariable) => {
if (variable.type !== expectedType) {
throw new Error(l10n("ERROR_DATA_TABLE_CSV_VARIABLE_TYPE", { name }));
}
if (index !== undefined && index >= (variable.length ?? 1)) {
throw new Error(
l10n("ERROR_DATA_TABLE_CSV_ARRAY_INDEX", { name, index }),
);
}
return variable;
};
const idMatch = availableVariables.find((variable) => variable.id === name);
if (idMatch) {
return validateMatch(idMatch);
}
const nameMatches = availableVariables.filter((variable) => {
const isGlobal = !/^[LTV]\d+$/.test(variable.id);
return isGlobal && variable.name === name;
});
const typeMatches = nameMatches.filter(
(variable) => variable.type === expectedType,
);
const compatibleMatches = typeMatches.filter(
(variable) => index === undefined || index < (variable.length ?? 1),
);
if (compatibleMatches.length > 0) {
return compatibleMatches[0];
}
if (typeMatches.length > 0 && index !== undefined) {
throw new Error(l10n("ERROR_DATA_TABLE_CSV_ARRAY_INDEX", { name, index }));
}
if (nameMatches.length > 0) {
throw new Error(l10n("ERROR_DATA_TABLE_CSV_VARIABLE_TYPE", { name }));
}
return undefined;
};
const escapeCSVValue = (value: string): string => {
if (value.includes(",") || value.includes('"') || value.includes("\n")) {
return `"${value.replace(/"/g, '""')}"`;
}
return value;
};
const isEngineConstantSymbol = (value: string) => {
return value.startsWith("engine::");
};
const parseCSVCellValue = (
value: string | undefined,
reverseConstantsLookup: Record<string, string>,
) => {
const trimmedValue = (value ?? "").trim();
const numValue = Number(trimmedValue);
if (!isNaN(numValue)) {
return { type: "number" as const, value: numValue };
}
if (isEngineConstantSymbol(trimmedValue)) {
return { type: "constant" as const, value: trimmedValue };
}
const constantId = reverseConstantsLookup[trimmedValue];
if (constantId) {
return { type: "constant" as const, value: constantId };
}
return { type: "number" as const, value: 0 };
};
const parseCSV = (csv: string): string[][] => {
const rows: string[][] = [];
let row: string[] = [];
let value = "";
let inQuotes = false;
for (let i = 0; i < csv.length; i++) {
const char = csv[i];
const nextChar = csv[i + 1];
if (inQuotes) {
Iif (char === '"' && nextChar === '"') {
value += '"';
i++;
} else if (char === '"') {
inQuotes = false;
} else {
value += char;
}
continue;
}
if (char === '"') {
inQuotes = true;
} else if (char === ",") {
row.push(value);
value = "";
} else if (char === "\n") {
row.push(value);
rows.push(row);
row = [];
value = "";
} else Eif (char !== "\r") {
value += char;
}
}
row.push(value);
rows.push(row);
return rows.filter((row) => row.length > 1 || row[0].trim().length > 0);
};
export const scriptDataTableToCSV = (
data: ScriptDataTable,
constants: Constant[],
variables: DataTableCSVVariable[],
): string => {
const constantsLookup = Object.fromEntries(
constants.map((constant, constantIndex) => [
constant.id,
constantName(constant, constantIndex),
]),
);
const variablesLookup = Object.fromEntries(
variables.map((variable) => [variable.id, variable]),
);
const header = [
data.label ?? "",
...data.variables.map((variable) =>
scriptDataTableVariableToCSV(variable, variablesLookup),
),
]
.map(escapeCSVValue)
.join(",");
const rows = data.rows.map((row, index) => {
const label = row.label ?? `Row ${index + 1}`;
const values = row.values.map((value) => {
Iif (value === undefined) return "";
if (value.type === "constant") {
const constant = constantsLookup[value.value];
Eif (constant) {
return escapeCSVValue(constant);
}
return escapeCSVValue(value.value);
}
return value.value.toString();
});
return [escapeCSVValue(label), ...values].join(",");
});
return [header, ...rows].join("\n");
};
export const csvToScriptDataTable = (
csv: string,
constants: Constant[],
availableVariables: DataTableCSVVariable[],
): ScriptDataTableImport => {
const reverseConstantsLookup = Object.fromEntries(
constants.map((constant, constantIndex) => [
constantName(constant, constantIndex),
constant.id,
]),
);
const csvRows = parseCSV(csv);
Iif (csvRows.length === 0) {
throw new Error(l10n("ERROR_DATA_TABLE_CSV_NO_ROW_DATA"));
}
const [header, ...rows] = csvRows;
const parsedVariables = header
.slice(1)
.map((value) => parseCSVVariable(value.trim()));
const newVariablesLookup = new Map<string, NewDataTableCSVVariable>();
const variables = parsedVariables.map<ScriptVariableElement>(
({ name, index }) => {
Iif (!name) {
throw new Error(l10n("ERROR_DATA_TABLE_CSV_INVALID"));
}
Iif (index !== undefined && index < 0) {
throw new Error(
l10n("ERROR_DATA_TABLE_CSV_ARRAY_INDEX", { name, index }),
);
}
const expectedType: VariableType =
index === undefined ? "number" : "array";
const existingVariable = resolveCSVVariable(
name,
index,
availableVariables,
);
if (existingVariable) {
return {
type: "variable",
value: existingVariable.id,
index:
index === undefined ? undefined : { type: "number", value: index },
};
}
const previousNewVariable = newVariablesLookup.get(name);
if (previousNewVariable && previousNewVariable.type !== expectedType) {
throw new Error(l10n("ERROR_DATA_TABLE_CSV_VARIABLE_TYPE", { name }));
}
const newVariable = previousNewVariable ?? {
placeholder: `__new_variable_${newVariablesLookup.size}`,
name,
type: expectedType,
length: expectedType === "array" ? 1 : undefined,
};
if (index !== undefined) {
newVariable.length = Math.max(newVariable.length ?? 1, index + 1);
}
newVariablesLookup.set(name, newVariable);
return {
type: "variable",
value: newVariable.placeholder,
index:
index === undefined ? undefined : { type: "number", value: index },
};
},
);
const dataRows = rows.map(([label = "", ...values]) => {
return {
label: label.trim(),
values: variables.map((_, index) =>
parseCSVCellValue(values[index], reverseConstantsLookup),
),
};
});
const dataTable: ScriptDataTable = {
label: header[0].trim() || undefined,
variables,
rows: dataRows,
};
Iif (!isScriptDataTable(dataTable)) {
throw new Error(l10n("ERROR_DATA_TABLE_CSV_INVALID"));
}
if (dataTable.variables.length === 0) {
throw new Error(l10n("ERROR_DATA_TABLE_CSV_NO_VARIABLES"));
}
if (dataTable.rows.length === 0) {
throw new Error(l10n("ERROR_DATA_TABLE_CSV_NO_ROW_DATA"));
}
return {
dataTable,
newVariables: Array.from(newVariablesLookup.values()),
};
};
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