/** 
* EntitySummaryButton.vue - Displays selected entity with edit capability 
*
* Extracted from GiftedDialog.vue to handle entity summary display in the gift
* details step with edit functionality.
*
* Features:
* - Shows entity avatar (person or project)
* - Displays entity name and role label
* - Handles editable vs locked states
* - Emits edit events when clicked and editable
* - Supports both person and project entity types
* - Template streamlined with computed CSS properties
*
* @author Matthew Raymer
*/
<template>
  <component
    :is="editable ? 'button' : 'div'"
    :class="containerClasses"
    @click="handleClick"
  >
    <!-- Entity Icon/Avatar -->
    <div>
      <template v-if="entityType === 'project'">
        <ProjectIcon
          v-if="entity && 'handleId' in entity && entity.handleId"
          :entity-id="entity.handleId"
          :icon-size="32"
          :image-url="'image' in entity ? entity.image : ''"
          class="rounded-full bg-white overflow-hidden !size-[2rem] object-cover"
        />
      </template>
      <template v-else>
        <EntityIcon
          v-if="entity?.did"
          :entity-id="entity.did"
          :contact="isContactEntity ? entity : undefined"
          class="rounded-full bg-white overflow-hidden !size-[2rem] object-cover"
        />
        <font-awesome
          v-else
          icon="circle-question"
          class="text-slate-400 text-3xl"
        />
      </template>
    </div>

    <!-- Entity Information -->
    <div class="text-start min-w-0">
      <p class="text-xs text-slate-500 leading-1 -mb-1 uppercase">
        {{ label }}
      </p>
      <h3 class="font-semibold truncate">
        {{ entity?.name || "Unnamed" }}
      </h3>
    </div>

    <!-- Edit/Lock Icon -->
    <p class="ms-auto text-sm pe-1" :class="iconClasses">
      <font-awesome
        :icon="editable ? 'pen' : 'lock'"
        :title="editable ? 'Change' : 'Can\'t be changed'"
      />
    </p>
  </component>
</template>

<script lang="ts">
import { Component, Prop, Vue, Emit } from "vue-facing-decorator";
import EntityIcon from "./EntityIcon.vue";
import ProjectIcon from "./ProjectIcon.vue";
import { Contact } from "../db/tables/contacts";

/**
 * Entity interface for both person and project entities
 */
interface EntityData {
  did?: string;
  handleId?: string;
  name?: string;
  image?: string;
}

/**
 * EntitySummaryButton - Displays selected entity with optional edit capability
 *
 * Features:
 * - Shows entity avatar (person or project)
 * - Displays entity name and role label
 * - Handles editable vs locked states
 * - Emits edit events when clicked and editable
 * - Supports both person and project entity types
 * - Template streamlined with computed CSS properties
 */
@Component({
  components: {
    EntityIcon,
    ProjectIcon,
  },
})
export default class EntitySummaryButton extends Vue {
  /** Entity data to display */
  @Prop({ required: true })
  entity!: EntityData | Contact | null;

  /** Type of entity: 'person' or 'project' */
  @Prop({ required: true })
  entityType!: "person" | "project";

  /** Display label for the entity role */
  @Prop({ required: true })
  label!: string;

  /** Whether the entity can be edited */
  @Prop({ default: true })
  editable!: boolean;

  /**
   * CSS classes for the main container
   */
  get containerClasses(): string {
    return "flex-1 flex items-center gap-2 bg-slate-100 border border-slate-300 rounded-md p-2";
  }

  /**
   * Whether the entity is a Contact object
   */
  get isContactEntity(): boolean {
    return this.entity !== null && "profileImageUrl" in this.entity;
  }

  /**
   * Computed CSS classes for the edit/lock icon
   */
  get iconClasses(): string {
    return this.editable ? "text-blue-500" : "text-slate-400";
  }

  /**
   * Handle click event - only emit if editable
   */
  handleClick(): void {
    if (this.editable) {
      this.emitEditRequested({
        entityType: this.entityType,
        entity: this.entity,
      });
    }
  }

  // Emit methods using @Emit decorator

  @Emit("edit-requested")
  emitEditRequested(data: {
    entityType: string;
    entity: EntityData | Contact | null;
  }): { entityType: string; entity: EntityData | Contact | null } {
    return data;
  }
}
</script>

<style scoped>
/* Ensure button styling is consistent */
button {
  cursor: pointer;
}

button:hover {
  background-color: #f1f5f9; /* hover:bg-slate-100 */
}

div {
  cursor: default;
}
</style>