feat: добавить управление окружениями и Playwright для E2E

src/componets/content/Content.tsx

@@ -129,7 +129,7 @@ function fillTemplate(config: Config, env: Env): string {
     let filledTemplate = config.template.content;
     const placeholderRegex = /@(\w+)@/g;
 
-    filledTemplate = filledTemplate.replace(placeholderRegex, (match, paramName) => {
+    filledTemplate = filledTemplate.replace(placeholderRegex, (_, paramName) => {
         if (paramName === Config.ENV_NAME_PARAM) {
             return env.name ?? "--NO-VALUE--";
         }

src/componets/env/Environment.tsx

@@ -1,10 +1,19 @@
-import { useState } from "react";
+import { useState, useEffect } from "react";
 import { AddEvent, AppEvent, DelEvent, Env, UpdateEvent } from "../../models/Env";
 import { EnvParam } from "../../models/EnvParam";
 import { EnvironmentParam } from "./EnvironmentParam";
 
-export function Environment(props: { envs: Env[], onChanged: (env: Env) => void, onSelected: (envId: number) => void }) {
-    const [currEnv, setCurrEnv] = useState(props.envs[0]);
+export function Environment(props: { envs: Env[], onChanged: (env: Env) => void, onSelected: (envId: number) => void, onAdd: (env: Env) => number, onRemove: (envId: number) => void }) {
+    const [currEnvId, setCurrEnvId] = useState(props.envs[0]?.id);
+    
+    // Sync currEnvId when props.envs changes
+    useEffect(() => {
+        if (!props.envs.find(e => e.id === currEnvId)) {
+            setCurrEnvId(props.envs[0]?.id);
+        }
+    }, [props.envs, currEnvId]);
+    
+    const currEnv = props.envs.find(e => e.id === currEnvId) ?? props.envs[0];
 
     function handleParamChanged(e: AppEvent<EnvParam>) {
         let isChanged = false;
@@ -26,12 +35,43 @@ export function Environment(props: { envs: Env[], onChanged: (env: Env) => void,
         }
 
         if (isChanged) {
-            let idx = props.envs.findIndex(x => x.id === env.id);
-            if (idx > -1) {
-                props.envs[idx] = env;
-                props.onChanged(props.envs[idx]);
-                setCurrEnv(env);
+            props.onChanged(env);
+            setCurrEnvId(env.id);
+        }
+    }
+
+    function handleAddEnv() {
+        const name = prompt("Enter new environment name:");
+        if (!name || name.trim() === "") return;
+
+        const newEnv = new Env(
+            Math.random() * 10000,
+            name.trim(),
+            [...currEnv.params]
+        );
+        // Parent synchronously adds the env and returns the index
+        const newIdx = props.onAdd(newEnv);
+        setCurrEnvId(newEnv.id);
+        props.onSelected(newIdx);
+    }
+
+    function handleRemoveEnv() {
+        if (currEnv.isDefault()) {
+            alert("Cannot remove DEFAULT environment");
+            return;
+        }
+        if (!confirm(`Remove environment "${currEnv.name}"?`)) return;
+
+        const idx = props.envs.findIndex(x => x.id === currEnv.id);
+        if (idx > -1 && currEnv.id !== undefined) {
+            // Let parent handle the removal
+            props.onRemove(currEnv.id);
+            const newIdx = Math.max(0, idx - 1);
+            const newEnv = props.envs[newIdx];
+            if (newEnv?.id !== undefined) {
+                setCurrEnvId(newEnv.id);
             }
+            props.onSelected(newIdx);
         }
     }
 
@@ -44,19 +84,28 @@ export function Environment(props: { envs: Env[], onChanged: (env: Env) => void,
 
     return (
         <>
-            <div className="row">
-                <select
-                    id="environments"
-                    name="environments"
-                    aria-label="Environments"
-                    className="form-select"
-                    onChange={x => {
-                        let id = Number.parseInt(x.target.value);
-                        setCurrEnv(props.envs[id]);
-                        props.onSelected(id);
-                    }}>
-                    {selectOptions}
-                </select>
+            <div className="row g-0">
+                <div className="col">
+                    <select
+                        id="environments"
+                        name="environments"
+                        aria-label="Environments"
+                        className="form-select"
+                        value={currEnvId}
+                        onChange={x => {
+                            let id = Number.parseInt(x.target.value);
+                            setCurrEnvId(id);
+                            props.onSelected(id);
+                        }}>
+                        {selectOptions}
+                    </select>
+                </div>
+                <div className="col-auto ms-2">
+                    <button className="btn btn-success" onClick={handleAddEnv} title="Add environment">✚</button>
+                </div>
+                <div className="col-auto ms-2">
+                    <button className="btn btn-danger" onClick={handleRemoveEnv} title="Remove environment" disabled={currEnv.isDefault()}>−</button>
+                </div>
             </div>
             <div className="row">Params</div>
             {paramCtrls}