import { jsx as _jsx } from "react/jsx-runtime";
import { useState, useEffect, useMemo, useCallback } from 'react';
import { Text } from 'ink';
import { theme } from '../semantic-colors.js';
import { SettingScope } from '../../config/settings.js';
import { getCachedStringWidth } from '../utils/textUtils.js';
import { BaseSettingsDialog, } from './shared/BaseSettingsDialog.js';
/**
 * Agent configuration fields
 */
const AGENT_CONFIG_FIELDS = [
    {
        key: 'enabled',
        label: 'Enabled',
        description: 'Enable or disable this agent',
        type: 'boolean',
        path: ['enabled'],
        defaultValue: true,
    },
    {
        key: 'model',
        label: 'Model',
        description: "Model to use (e.g., 'gemini-2.0-flash' or 'inherit')",
        type: 'string',
        path: ['modelConfig', 'model'],
        defaultValue: 'inherit',
    },
    {
        key: 'temperature',
        label: 'Temperature',
        description: 'Sampling temperature (0.0 to 2.0)',
        type: 'number',
        path: ['modelConfig', 'generateContentConfig', 'temperature'],
        defaultValue: undefined,
    },
    {
        key: 'topP',
        label: 'Top P',
        description: 'Nucleus sampling parameter (0.0 to 1.0)',
        type: 'number',
        path: ['modelConfig', 'generateContentConfig', 'topP'],
        defaultValue: undefined,
    },
    {
        key: 'topK',
        label: 'Top K',
        description: 'Top-K sampling parameter',
        type: 'number',
        path: ['modelConfig', 'generateContentConfig', 'topK'],
        defaultValue: undefined,
    },
    {
        key: 'maxOutputTokens',
        label: 'Max Output Tokens',
        description: 'Maximum number of tokens to generate',
        type: 'number',
        path: ['modelConfig', 'generateContentConfig', 'maxOutputTokens'],
        defaultValue: undefined,
    },
    {
        key: 'maxTimeMinutes',
        label: 'Max Time (minutes)',
        description: 'Maximum execution time in minutes',
        type: 'number',
        path: ['runConfig', 'maxTimeMinutes'],
        defaultValue: undefined,
    },
    {
        key: 'maxTurns',
        label: 'Max Turns',
        description: 'Maximum number of conversational turns',
        type: 'number',
        path: ['runConfig', 'maxTurns'],
        defaultValue: undefined,
    },
];
/**
 * Get a nested value from an object using a path array
 */
function getNestedValue(obj, path) {
    if (!obj)
        return undefined;
    let current = obj;
    for (const key of path) {
        if (current === null || current === undefined)
            return undefined;
        if (typeof current !== 'object')
            return undefined;
        current = current[key];
    }
    return current;
}
/**
 * Set a nested value in an object using a path array, creating intermediate objects as needed
 */
function setNestedValue(obj, path, value) {
    const result = { ...obj };
    let current = result;
    for (let i = 0; i < path.length - 1; i++) {
        const key = path[i];
        if (current[key] === undefined || current[key] === null) {
            current[key] = {};
        }
        else {
            current[key] = { ...current[key] };
        }
        current = current[key];
    }
    const finalKey = path[path.length - 1];
    if (value === undefined) {
        delete current[finalKey];
    }
    else {
        current[finalKey] = value;
    }
    return result;
}
/**
 * Get the effective default value for a field from the agent definition
 */
function getFieldDefaultFromDefinition(field, definition) {
    if (definition.kind !== 'local')
        return field.defaultValue;
    if (field.key === 'enabled') {
        return !definition.experimental; // Experimental agents default to disabled
    }
    if (field.key === 'model') {
        return definition.modelConfig?.model ?? 'inherit';
    }
    if (field.key === 'temperature') {
        return definition.modelConfig?.generateContentConfig?.temperature;
    }
    if (field.key === 'topP') {
        return definition.modelConfig?.generateContentConfig?.topP;
    }
    if (field.key === 'topK') {
        return definition.modelConfig?.generateContentConfig?.topK;
    }
    if (field.key === 'maxOutputTokens') {
        return definition.modelConfig?.generateContentConfig?.maxOutputTokens;
    }
    if (field.key === 'maxTimeMinutes') {
        return definition.runConfig?.maxTimeMinutes;
    }
    if (field.key === 'maxTurns') {
        return definition.runConfig?.maxTurns;
    }
    return field.defaultValue;
}
export function AgentConfigDialog({ agentName, displayName, definition, settings, onClose, onSave, }) {
    // Scope selector state (User by default)
    const [selectedScope, setSelectedScope] = useState(SettingScope.User);
    // Pending override state for the selected scope
    const [pendingOverride, setPendingOverride] = useState(() => {
        const scopeSettings = settings.forScope(selectedScope).settings;
        const existingOverride = scopeSettings.agents?.overrides?.[agentName];
        return existingOverride ? structuredClone(existingOverride) : {};
    });
    // Track which fields have been modified
    const [modifiedFields, setModifiedFields] = useState(new Set());
    // Update pending override when scope changes
    useEffect(() => {
        const scopeSettings = settings.forScope(selectedScope).settings;
        const existingOverride = scopeSettings.agents?.overrides?.[agentName];
        setPendingOverride(existingOverride ? structuredClone(existingOverride) : {});
        setModifiedFields(new Set());
    }, [selectedScope, settings, agentName]);
    /**
     * Save a specific field value to settings
     */
    const saveFieldValue = useCallback((fieldKey, path, value) => {
        // Guard against prototype pollution
        if (['__proto__', 'constructor', 'prototype'].includes(agentName)) {
            return;
        }
        // Build the full settings path for agent override
        // e.g., agents.overrides.<agentName>.modelConfig.generateContentConfig.temperature
        const settingsPath = ['agents', 'overrides', agentName, ...path].join('.');
        settings.setValue(selectedScope, settingsPath, value);
        onSave?.();
    }, [settings, selectedScope, agentName, onSave]);
    // Calculate max label width
    const maxLabelWidth = useMemo(() => {
        let max = 0;
        for (const field of AGENT_CONFIG_FIELDS) {
            const lWidth = getCachedStringWidth(field.label);
            const dWidth = getCachedStringWidth(field.description);
            max = Math.max(max, lWidth, dWidth);
        }
        return max;
    }, []);
    // Generate items for BaseSettingsDialog
    const items = useMemo(() => AGENT_CONFIG_FIELDS.map((field) => {
        const currentValue = getNestedValue(pendingOverride, field.path);
        const defaultValue = getFieldDefaultFromDefinition(field, definition);
        const effectiveValue = currentValue !== undefined ? currentValue : defaultValue;
        let displayValue;
        if (field.type === 'boolean') {
            displayValue = effectiveValue ? 'true' : 'false';
        }
        else if (effectiveValue !== undefined && effectiveValue !== null) {
            displayValue = String(effectiveValue);
        }
        else {
            displayValue = '(default)';
        }
        // Add * if modified
        const isModified = modifiedFields.has(field.key) || currentValue !== undefined;
        if (isModified && currentValue !== undefined) {
            displayValue += '*';
        }
        // Get raw value for edit mode
        const rawValue = currentValue !== undefined ? currentValue : effectiveValue;
        return {
            key: field.key,
            label: field.label,
            description: field.description,
            type: field.type,
            displayValue,
            isGreyedOut: currentValue === undefined,
            scopeMessage: undefined,
            rawValue: rawValue,
        };
    }), [pendingOverride, definition, modifiedFields]);
    const maxItemsToShow = 8;
    // Handle scope changes
    const handleScopeChange = useCallback((scope) => {
        setSelectedScope(scope);
    }, []);
    // Handle toggle for boolean fields
    const handleItemToggle = useCallback((key, _item) => {
        const field = AGENT_CONFIG_FIELDS.find((f) => f.key === key);
        if (!field || field.type !== 'boolean')
            return;
        const currentValue = getNestedValue(pendingOverride, field.path);
        const defaultValue = getFieldDefaultFromDefinition(field, definition);
        const effectiveValue = currentValue !== undefined ? currentValue : defaultValue;
        const newValue = !effectiveValue;
        const newOverride = setNestedValue(pendingOverride, field.path, newValue);
        setPendingOverride(newOverride);
        setModifiedFields((prev) => new Set(prev).add(key));
        // Save the field value to settings
        saveFieldValue(field.key, field.path, newValue);
    }, [pendingOverride, definition, saveFieldValue]);
    // Handle edit commit for string/number fields
    const handleEditCommit = useCallback((key, newValue, _item) => {
        const field = AGENT_CONFIG_FIELDS.find((f) => f.key === key);
        if (!field)
            return;
        let parsed;
        if (field.type === 'number') {
            if (newValue.trim() === '') {
                // Empty means clear the override
                parsed = undefined;
            }
            else {
                const numParsed = Number(newValue.trim());
                if (Number.isNaN(numParsed)) {
                    // Invalid number; don't save
                    return;
                }
                parsed = numParsed;
            }
        }
        else {
            // For strings, empty means clear the override
            parsed = newValue.trim() === '' ? undefined : newValue;
        }
        // Update pending override locally
        const newOverride = setNestedValue(pendingOverride, field.path, parsed);
        setPendingOverride(newOverride);
        setModifiedFields((prev) => new Set(prev).add(key));
        // Save the field value to settings
        saveFieldValue(field.key, field.path, parsed);
    }, [pendingOverride, saveFieldValue]);
    // Handle clear/reset - reset to default value (removes override)
    const handleItemClear = useCallback((key, _item) => {
        const field = AGENT_CONFIG_FIELDS.find((f) => f.key === key);
        if (!field)
            return;
        // Remove the override (set to undefined)
        const newOverride = setNestedValue(pendingOverride, field.path, undefined);
        setPendingOverride(newOverride);
        setModifiedFields((prev) => {
            const updated = new Set(prev);
            updated.delete(key);
            return updated;
        });
        // Save as undefined to remove the override
        saveFieldValue(field.key, field.path, undefined);
    }, [pendingOverride, saveFieldValue]);
    // Footer content
    const footerContent = modifiedFields.size > 0 ? (_jsx(Text, { color: theme.text.secondary, children: "Changes saved automatically." })) : null;
    return (_jsx(BaseSettingsDialog, { title: `Configure: ${displayName}`, searchEnabled: false, items: items, showScopeSelector: true, selectedScope: selectedScope, onScopeChange: handleScopeChange, maxItemsToShow: maxItemsToShow, maxLabelWidth: maxLabelWidth, onItemToggle: handleItemToggle, onEditCommit: handleEditCommit, onItemClear: handleItemClear, onClose: onClose, footerContent: footerContent }));
}
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