// file: kb-app-demo-desktop/frontend/ts/demo_execution_metadata.ts
// version: 3
import "bootstrap";
import "simplebar";
import { invoke } from "@tauri-apps/api/core";
import { frontendError } from "./frontend_log.ts";
import { installFrontendConsoleBridge } from "./frontend_log.ts";
import { renderJsonViewer } from "./json_viewer.ts";
import type { DemoExecutionMetadataScenarioPayload } from "./bindings/kb_app_demo_desktop/demo_execution_metadata/DemoExecutionMetadataScenarioPayload.ts";
import type { DemoExecutionDevnetStoreReadinessPayload } from "./bindings/kb_app_demo_desktop/demo_execution_solana_core/DemoExecutionDevnetStoreReadinessPayload.ts";
import type { DemoExecutionSolanaCoreOptionsPayload } from "./bindings/kb_app_demo_desktop/demo_execution_solana_core/DemoExecutionSolanaCoreOptionsPayload.ts";

const storageKey = "kb-app-demo-desktop.metadata.selected-scenario";
const profileStorageKey = "kb-app-demo-desktop.metadata.selected-profile";
let scenarios: DemoExecutionMetadataScenarioPayload[] = [];
let selectedProfileName: string | null = null;

function element<T extends HTMLElement>(selector: string): T {
    const value = document.querySelector<T>(selector);
    if (value === null) {
        throw new Error(`Élément introuvable : ${selector}`);
    }
    return value;
}

function activeSelect(): HTMLSelectElement {
    return document.querySelector("#metaplexDevnetCollapse.show") !== null ? element<HTMLSelectElement>("#metadataDevnetScenarioSelect") : element<HTMLSelectElement>("#metadataSyntheticScenarioSelect");
}

function selectedScenario(): DemoExecutionMetadataScenarioPayload | null {
    const id = activeSelect().value;
    return scenarios.find(scenario => scenario.id === id) ?? null;
}

function fillSelect(selector: string, mode: string): void {
    const select = element<HTMLSelectElement>(selector);
    select.replaceChildren();
    for (const scenario of scenarios.filter(candidate => candidate.mode === mode)) {
        const option = document.createElement("option");
        option.value = scenario.id;
        option.textContent = `${scenario.assetFamily} — ${scenario.id}`;
        select.append(option);
    }
}

function renderSelectedScenario(): void {
    const scenario = selectedScenario();
    if (scenario === null) {
        return;
    }
    window.localStorage.setItem(storageKey, scenario.id);
    const networkMode = scenario.mode !== "synthetic";
    element<HTMLElement>("#metadataRequirements").innerHTML = `<dt class="col-6">Famille</dt><dd class="col-6"><code>${scenario.assetFamily}</code></dd><dt class="col-6">Mode</dt><dd class="col-6"><code>${scenario.mode}</code></dd><dt class="col-6">Profil</dt><dd class="col-6"><code>${networkMode ? selectedProfileName ?? "non chargé" : "non applicable"}</code></dd><dt class="col-6">Collection</dt><dd class="col-6">${scenario.requiresCollection ? "requise" : "non requise"}</dd><dt class="col-6">Rule set</dt><dd class="col-6">${scenario.requiresProgrammableRules ? "requis" : "non requis"}</dd><dt class="col-6">Validation</dt><dd class="col-6"><code>${scenario.validationStatus}</code></dd>`;
    renderJsonViewer("#metadataPreflightOutput", {
        scenarioId: scenario.id,
        operationCodes: scenario.operationCodes,
        checks: ["program_id", "owner", "pda_and_seeds", "required_accounts", "authorities", "stateful_correlations"],
        networkExecutionPerformed: false,
    });
    renderJsonViewer("#metadataSimulationOutput", {
        mode: scenario.mode,
        policy: "simulation_first",
        networkExecutionPerformed: false,
        automaticSubmission: false,
        operatorConfirmationRequired: true,
        expectedState: scenario.validationStatus,
        note: networkMode ? "Le contrat Devnet est sélectionné, mais aucune transaction Metaplex n'est simulée par cette commande de chargement." : "Scénario synthétique déterministe.",
    });
    renderJsonViewer("#metadataPostconditionsOutput", {
        required: scenario.requiresPostcondition,
        evidenceKinds: scenario.requiredEvidence,
        networkEvidenceCollected: false,
        rule: "Aucune validation réseau n'est déclarée sans simulation RPC réelle, signature éventuelle, slot et postconditions.",
    });
}

async function loadProfiles(): Promise<void> {
    const options = await invoke<DemoExecutionSolanaCoreOptionsPayload>("demo_execution_solana_core_options");
    const select = element<HTMLSelectElement>("#metadataProfileSelect");
    select.replaceChildren();
    for (const profile of options.profiles) {
        const option = document.createElement("option");
        option.value = profile.name;
        option.textContent = `${profile.name} — ${profile.walletAlias}`;
        select.append(option);
    }
    const restored = window.localStorage.getItem(profileStorageKey);
    if (restored !== null && Array.from(select.options).some(option => option.value === restored)) {
        select.value = restored;
    } else if (options.defaultProfileName !== null) {
        select.value = options.defaultProfileName;
    }
    selectedProfileName = select.value.length === 0 ? null : select.value;
    renderSelectedScenario();
}

async function prepareProfile(): Promise<void> {
    const badge = element<HTMLElement>("#metadataProfileStatusBadge");
    const profileName = element<HTMLSelectElement>("#metadataProfileSelect").value;
    if (profileName.length === 0) {
        badge.textContent = "Aucun profil";
        badge.className = "badge text-bg-danger";
        return;
    }
    badge.textContent = "Préparation";
    badge.className = "badge text-bg-warning";
    try {
        const readiness = await invoke<DemoExecutionDevnetStoreReadinessPayload>("demo_execution_devnet_prepare_profile", { profileName });
        selectedProfileName = profileName;
        window.localStorage.setItem(profileStorageKey, profileName);
        renderJsonViewer("#metadataProfileOutput", readiness);
        badge.textContent = "Base prête";
        badge.className = "badge text-bg-success";
        renderSelectedScenario();
    } catch (caught) {
        const message = caught instanceof Error ? caught.message : String(caught);
        badge.textContent = "Erreur";
        badge.className = "badge text-bg-danger";
        frontendError("kb-app-demo-desktop.frontend.execution_metadata", message);
    }
}

async function loadScenarios(): Promise<void> {
    const badge = element<HTMLElement>("#metadataStatusBadge");
    badge.textContent = "Chargement";
    badge.className = "badge text-bg-warning";
    try {
        scenarios = await invoke<DemoExecutionMetadataScenarioPayload[]>("demo_execution_metadata_scenarios");
        fillSelect("#metadataSyntheticScenarioSelect", "synthetic");
        fillSelect("#metadataDevnetScenarioSelect", "network_simulation");
        const restored = window.localStorage.getItem(storageKey);
        for (const selector of ["#metadataSyntheticScenarioSelect", "#metadataDevnetScenarioSelect"]) {
            const select = element<HTMLSelectElement>(selector);
            if (restored !== null && Array.from(select.options).some(option => option.value === restored)) {
                select.value = restored;
            }
        }
        renderSelectedScenario();
        badge.textContent = `${scenarios.length} contrats`;
        badge.className = "badge text-bg-success";
    } catch (caught) {
        const message = caught instanceof Error ? caught.message : String(caught);
        badge.textContent = "Erreur";
        badge.className = "badge text-bg-danger";
        frontendError("kb-app-demo-desktop.frontend.execution_metadata", message);
    }
}

document.addEventListener("DOMContentLoaded", () => {
    installFrontendConsoleBridge("kb-app-demo-desktop.frontend.execution_metadata");
    for (const selector of ["#metadataSyntheticScenarioSelect", "#metadataDevnetScenarioSelect"]) {
        element<HTMLSelectElement>(selector).addEventListener("change", renderSelectedScenario);
    }
    for (const id of ["metaplexSyntheticCollapse", "metaplexDevnetCollapse"]) {
        element<HTMLElement>(`#${id}`).addEventListener("shown.bs.collapse", renderSelectedScenario);
    }
    element<HTMLSelectElement>("#metadataProfileSelect").addEventListener("change", event => {
        const target = event.currentTarget as HTMLSelectElement;
        selectedProfileName = target.value.length === 0 ? null : target.value;
        renderSelectedScenario();
    });
    element<HTMLButtonElement>("#prepareMetadataProfileButton").addEventListener("click", () => void prepareProfile());
    element<HTMLButtonElement>("#refreshMetadataScenariosButton").addEventListener("click", () => void loadScenarios());
    void loadProfiles().catch(caught => frontendError("kb-app-demo-desktop.frontend.execution_metadata", caught instanceof Error ? caught.message : String(caught)));
    void loadScenarios();
});