import type { FormEvent } from 'react'
import type { ProjectCreate, ProjectRead } from '../../types'

const TECHNICAL_PROJECT_PATTERN = /^(GeoIntel Detection Quality Matrix|GeoIntel hard-negative|GeoIntel training|Mol Building QA)/i

function isTechnicalProject(project: ProjectRead): boolean {
  return TECHNICAL_PROJECT_PATTERN.test(project.name)
}

interface ProjectPanelProps {
  projects: ProjectRead[]
  selectedProjectId: string | null
  loadingProjects: boolean
  projectForm: ProjectCreate
  loadingDemoWorkflow: boolean
  demoWorkflowMessage: string | null
  onCreateProject: (event: FormEvent<HTMLFormElement>) => void
  onUpdateProjectForm: (projectForm: ProjectCreate) => void
  onSelectProject: (projectId: string) => void
  onLoadDemoWorkflow: () => void
}

export function ProjectPanel({
  projects,
  selectedProjectId,
  loadingProjects,
  projectForm,
  loadingDemoWorkflow,
  demoWorkflowMessage,
  onCreateProject,
  onUpdateProjectForm,
  onSelectProject,
  onLoadDemoWorkflow,
}: ProjectPanelProps): JSX.Element {
  const selectedProject = projects.find((project) => project.id === selectedProjectId)
  const regularProjects = projects.filter((project) => !isTechnicalProject(project))
  const technicalProjects = projects.filter(isTechnicalProject)
  const visibleProjects = selectedProject && isTechnicalProject(selectedProject)
    ? [selectedProject, ...regularProjects]
    : regularProjects

  return (
    <section className="workspace-panel" data-testid="project-panel">
      <div className="panel-title-row">
        <div>
          <p className="eyebrow">Gegevenscontext</p>
          <h2>Werkruimtes</h2>
        </div>
        <span className="count-pill">{regularProjects.length} beschikbaar</span>
      </div>
      {loadingProjects ? <p>Werkruimtes laden...</p> : null}

      <div className="data-selection-summary data-selection-summary-project">
        <span>Actieve werkruimte</span>
        <strong>{selectedProject?.name ?? 'Geen werkruimte actief'}</strong>
        <small>{selectedProject?.region ?? 'De regionale werkruimte wordt automatisch gekozen.'}</small>
      </div>

      <div className="data-panel-list-block">
        <p className="data-section-label">Beschikbare werkruimtes</p>
        <ul className="entity-list">
          {visibleProjects.map((project) => (
            <li key={project.id}>
              <button
                className={project.id === selectedProjectId ? 'entity-card entity-card-active' : 'entity-card'}
                type="button"
                onClick={() => onSelectProject(project.id)}
                aria-pressed={project.id === selectedProjectId}
                data-testid={`project-select-${project.id}`}
              >
                <strong>{project.name}</strong>
                <span>{project.region || 'Regio niet opgegeven'}</span>
              </button>
            </li>
          ))}
          {regularProjects.length === 0 ? (
            <li className="empty-state">
              <strong>Nog geen werkruimte beschikbaar</strong>
              <p>Maak een werkruimte aan of laad de demonstratiegegevens.</p>
            </li>
          ) : null}
        </ul>
      </div>

      <details className="data-panel-form-block technical-management-block">
        <summary>Geavanceerd projectbeheer</summary>
        <div className="technical-management-body">
          <form className="compact-form" onSubmit={onCreateProject}>
            <label>
              Naam
              <input
                value={projectForm.name}
                onChange={(event) => onUpdateProjectForm({ ...projectForm, name: event.target.value })}
                placeholder="Naam van de werkruimte"
              />
            </label>
            <label>
              Beschrijving
              <input
                value={projectForm.description ?? ''}
                onChange={(event) => onUpdateProjectForm({ ...projectForm, description: event.target.value })}
                placeholder="Korte beschrijving"
              />
            </label>
            <label>
              Regio
              <input
                value={projectForm.region ?? 'Kempen'}
                onChange={(event) => onUpdateProjectForm({ ...projectForm, region: event.target.value })}
                placeholder="Regio"
              />
            </label>
            <button className="primary-action" type="submit">Nieuwe werkruimte</button>
          </form>
          <div className="demo-actions">
            <button className="secondary-action" type="button" onClick={onLoadDemoWorkflow} disabled={loadingDemoWorkflow} data-testid="load-demo-workflow">
              {loadingDemoWorkflow ? 'Demo laden...' : 'Demonstratiegegevens laden'}
            </button>
            {demoWorkflowMessage ? <p>{demoWorkflowMessage}</p> : null}
          </div>
          {technicalProjects.length > 0 ? (
            <details className="technical-run-list">
              <summary>{technicalProjects.length} technische test- en benchmarkruns</summary>
              <ul className="entity-list">
                {technicalProjects.map((project) => (
                  <li key={project.id}>
                    <button
                      className={project.id === selectedProjectId ? 'entity-card entity-card-active' : 'entity-card'}
                      type="button"
                      onClick={() => onSelectProject(project.id)}
                      aria-pressed={project.id === selectedProjectId}
                      data-testid={`project-select-${project.id}`}
                    >
                      <strong>{project.name}</strong>
                      <span>{project.region || 'Technische run'}</span>
                    </button>
                  </li>
                ))}
              </ul>
            </details>
          ) : null}
        </div>
      </details>
    </section>
  )
}