/**
 * Step 1: Business Details
 * Site type selection, hosting detection, brand inputs
 */
import { useState, useEffect } from 'react';
import { useBuilderWorkflowStore } from '../../../../store/builderWorkflowStore';
import { fetchSiteBlueprintById, updateSiteBlueprint, SiteBlueprint } from '../../../../services/api';
import { Card, CardDescription, CardTitle } from '../../../../components/ui/card';
import ButtonWithTooltip from '../../../../components/ui/button/ButtonWithTooltip';
import Input from '../../../../components/ui/input/Input';
import Alert from '../../../../components/ui/alert/Alert';
import { Loader2 } from 'lucide-react';

interface BusinessDetailsStepProps {
  blueprintId: number;
}

export default function BusinessDetailsStep({ blueprintId }: BusinessDetailsStepProps) {
  const { context, completeStep, loading } = useBuilderWorkflowStore();
  const [blueprint, setBlueprint] = useState<SiteBlueprint | null>(null);
  const [formData, setFormData] = useState({
    name: '',
    description: '',
    hosting_type: 'igny8_sites' as const,
    business_type: '',
  });
  const [saving, setSaving] = useState(false);
  const [error, setError] = useState<string | null>(null);

  useEffect(() => {
    // Load blueprint data
    fetchSiteBlueprintById(blueprintId)
      .then(setBlueprint)
      .catch(err => setError(err.message));
  }, [blueprintId]);

  useEffect(() => {
    if (blueprint) {
      setFormData({
        name: blueprint.name || '',
        description: blueprint.description || '',
        hosting_type: (blueprint.hosting_type as any) || 'igny8_sites',
        business_type: blueprint.config_json?.business_type || '',
      });
    }
  }, [blueprint]);

  const handleSave = async () => {
    setSaving(true);
    setError(null);
    try {
      const updated = await updateSiteBlueprint(blueprintId, {
        name: formData.name,
        description: formData.description,
        hosting_type: formData.hosting_type,
        config_json: {
          ...blueprint?.config_json,
          business_type: formData.business_type,
        },
      });
      setBlueprint(updated);
      
      // Mark step as complete
      await completeStep('business_details', {
        blueprint_name: formData.name,
        hosting_type: formData.hosting_type,
      });
    } catch (err: any) {
      setError(err.message || 'Failed to save business details');
    } finally {
      setSaving(false);
    }
  };

  const canProceed = formData.name.trim().length > 0;

  return (
    <Card className="p-6">
      <CardTitle>Business Details</CardTitle>
      <CardDescription>
        Tell us about your business and site type to get started.
      </CardDescription>

      {error && (
        <Alert variant="error" className="mt-4">
          {error}
        </Alert>
      )}

      <div className="mt-6 space-y-4">
        <div>
          <label className="block text-sm font-medium mb-2">Site Name *</label>
          <Input
            value={formData.name}
            onChange={(e) => setFormData({ ...formData, name: e.target.value })}
            placeholder="My Awesome Site"
            required
          />
        </div>

        <div>
          <label className="block text-sm font-medium mb-2">Description</label>
          <textarea
            value={formData.description}
            onChange={(e) => setFormData({ ...formData, description: e.target.value })}
            className="w-full px-3 py-2 border rounded-md"
            rows={3}
            placeholder="Brief description of your site..."
          />
        </div>

        <div>
          <label className="block text-sm font-medium mb-2">Hosting Type</label>
          <select
            value={formData.hosting_type}
            onChange={(e) => setFormData({ ...formData, hosting_type: e.target.value as any })}
            className="w-full px-3 py-2 border rounded-md"
          >
            <option value="igny8_sites">IGNY8 Sites</option>
            <option value="wordpress">WordPress</option>
            <option value="shopify">Shopify</option>
            <option value="multi">Multiple Destinations</option>
          </select>
        </div>
      </div>

      <div className="mt-6 flex justify-end">
        <ButtonWithTooltip
          onClick={handleSave}
          disabled={!canProceed || saving || loading}
          variant="primary"
          tooltip={
            !canProceed ? 'Please provide a site name to continue' :
            saving ? 'Saving...' :
            loading ? 'Loading...' : undefined
          }
        >
          {saving ? (
            <>
              <Loader2 className="mr-2 h-4 w-4 animate-spin" />
              Saving...
            </>
          ) : (
            'Save & Continue'
          )}
        </ButtonWithTooltip>
      </div>

      {!canProceed && (
        <Alert variant="warning" className="mt-4">
          Please provide a site name to continue.
        </Alert>
      )}
    </Card>
  );
}