import { LitElement, html, css } from "lit";
import { theme, buttonStyles } from "../styles/theme.js";

/**
 * MissionDebrief.js
 * After Action Report - UI component for displaying mission results.
 * Shows XP, rewards, loot, reputation changes, and squad status.
 */
export class MissionDebrief extends LitElement {
  static get properties() {
    return {
      result: { type: Object },
    };
  }

  static get styles() {
    return [
      theme,
      buttonStyles,
      css`
        :host {
          display: block;
        }

        dialog {
          margin: auto;
          padding: 0;
          border: none;
          background: transparent;
          max-width: 900px;
          max-height: 90vh;
          width: 90vw;
        }

        dialog::backdrop {
          background: rgba(0, 0, 0, 0.85);
          backdrop-filter: blur(4px);
        }

        .modal-content {
          background: var(--color-bg-tertiary);
          border: var(--border-width-thick) solid var(--color-border-default);
          box-shadow: var(--shadow-lg);
          width: 100%;
          max-height: 90vh;
          overflow-y: auto;
          display: grid;
          grid-template-rows: auto 1fr auto;
          grid-template-areas:
            "header"
            "content"
            "footer";
          font-family: var(--font-family);
          color: var(--color-text-primary);
        }

        /* Header */
        .header {
          grid-area: header;
          padding: var(--spacing-lg);
          text-align: center;
          border-bottom: var(--border-width-medium) solid
            var(--color-border-default);
        }

        .header.victory {
          color: var(--color-accent-gold);
          text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
        }

        .header.defeat {
          color: var(--color-accent-red);
          text-shadow: 0 0 10px rgba(255, 102, 102, 0.5);
        }

        .header h1 {
          margin: 0;
          font-size: var(--font-size-4xl);
          text-transform: uppercase;
          letter-spacing: 0.1em;
        }

        .mission-title {
          margin-top: var(--spacing-sm);
          font-size: var(--font-size-lg);
          color: var(--color-text-secondary);
        }

        /* Content */
        .content {
          grid-area: content;
          padding: var(--spacing-lg);
          display: flex;
          flex-direction: column;
          gap: var(--spacing-lg);
        }

        /* Primary Stats Row */
        .primary-stats {
          display: grid;
          grid-template-columns: 1fr 1fr;
          gap: var(--spacing-lg);
        }

        .stat-card {
          background: var(--color-bg-card);
          border: var(--border-width-medium) solid var(--color-border-default);
          padding: var(--spacing-md);
          display: flex;
          flex-direction: column;
          gap: var(--spacing-sm);
        }

        .stat-label {
          font-size: var(--font-size-sm);
          color: var(--color-text-secondary);
          text-transform: uppercase;
        }

        .stat-value {
          font-size: var(--font-size-2xl);
          color: var(--color-accent-cyan);
          font-weight: var(--font-weight-bold);
        }

        .xp-bar-container {
          width: 100%;
          height: 20px;
          background: var(--color-bg-primary);
          border: var(--border-width-thin) solid var(--color-border-default);
          position: relative;
          overflow: hidden;
        }

        .xp-bar-fill {
          height: 100%;
          background: linear-gradient(
            90deg,
            var(--color-accent-gold) 0%,
            var(--color-accent-orange) 100%
          );
          transition: width 1s ease-out;
          width: 0%;
        }

        /* Rewards Panel */
        .rewards-panel {
          background: var(--color-bg-panel);
          border: var(--border-width-medium) solid var(--color-border-default);
          padding: var(--spacing-md);
          display: flex;
          flex-direction: column;
          gap: var(--spacing-md);
        }

        .rewards-panel h2 {
          margin: 0;
          font-size: var(--font-size-xl);
          color: var(--color-accent-gold);
          border-bottom: var(--border-width-thin) solid
            var(--color-border-default);
          padding-bottom: var(--spacing-sm);
        }

        .currency-display {
          display: flex;
          gap: var(--spacing-lg);
          align-items: center;
        }

        .currency-item {
          display: flex;
          align-items: center;
          gap: var(--spacing-sm);
          font-size: var(--font-size-lg);
        }

        .loot-grid {
          display: grid;
          grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
          gap: var(--spacing-md);
          margin-top: var(--spacing-sm);
        }

        .item-card {
          background: var(--color-bg-card);
          border: var(--border-width-medium) solid var(--color-border-default);
          padding: var(--spacing-sm);
          display: flex;
          flex-direction: column;
          align-items: center;
          justify-content: center;
          min-height: 120px;
          cursor: pointer;
          transition: all var(--transition-normal);
          position: relative;
        }

        .item-card:hover {
          border-color: var(--color-accent-cyan);
          box-shadow: var(--shadow-glow-cyan);
          transform: translateY(-2px);
        }

        .item-card img {
          width: 48px;
          height: 48px;
          object-fit: contain;
        }

        .item-card .item-name {
          margin-top: var(--spacing-xs);
          font-size: var(--font-size-xs);
          text-align: center;
          color: var(--color-text-primary);
        }

        .reputation-display {
          margin-top: var(--spacing-sm);
        }

        .reputation-item {
          display: flex;
          justify-content: space-between;
          align-items: center;
          padding: var(--spacing-xs) 0;
          border-bottom: var(--border-width-thin) solid
            var(--color-border-dashed);
        }

        .reputation-item:last-child {
          border-bottom: none;
        }

        .reputation-name {
          color: var(--color-text-secondary);
        }

        .reputation-amount {
          color: var(--color-accent-green);
          font-weight: var(--font-weight-bold);
        }

        /* Roster Status */
        .roster-status {
          background: var(--color-bg-panel);
          border: var(--border-width-medium) solid var(--color-border-default);
          padding: var(--spacing-md);
        }

        .roster-status h2 {
          margin: 0 0 var(--spacing-md) 0;
          font-size: var(--font-size-xl);
          color: var(--color-accent-cyan);
          border-bottom: var(--border-width-thin) solid
            var(--color-border-default);
          padding-bottom: var(--spacing-sm);
        }

        .roster-grid {
          display: grid;
          grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
          gap: var(--spacing-md);
        }

        .unit-status {
          background: var(--color-bg-card);
          border: var(--border-width-medium) solid var(--color-border-default);
          padding: var(--spacing-sm);
          display: flex;
          flex-direction: column;
          align-items: center;
          gap: var(--spacing-xs);
          position: relative;
        }

        .unit-status.dead {
          opacity: 0.5;
          filter: grayscale(100%);
        }

        .unit-status.injured {
          border-color: var(--color-accent-orange);
        }

        .unit-portrait {
          width: 60px;
          height: 60px;
          border: var(--border-width-thin) solid var(--color-border-default);
          background: var(--color-bg-primary);
          display: flex;
          align-items: center;
          justify-content: center;
          font-size: 32px;
        }

        .unit-name {
          font-size: var(--font-size-sm);
          font-weight: var(--font-weight-bold);
        }

        .unit-status-text {
          font-size: var(--font-size-xs);
          color: var(--color-text-secondary);
        }

        .level-up-badge {
          position: absolute;
          top: -8px;
          right: -8px;
          background: var(--color-accent-gold);
          color: var(--color-bg-primary);
          padding: 2px 6px;
          font-size: var(--font-size-xs);
          font-weight: var(--font-weight-bold);
          border-radius: var(--border-radius-sm);
          box-shadow: var(--shadow-glow-gold);
        }

        /* Footer */
        .footer {
          grid-area: footer;
          padding: var(--spacing-lg);
          border-top: var(--border-width-medium) solid
            var(--color-border-default);
          display: flex;
          justify-content: center;
        }

        /* Typewriter Effect */
        .typewriter {
          display: inline-block;
          overflow: hidden;
          white-space: nowrap;
          border-right: 2px solid var(--color-accent-cyan);
          animation: typing 2s steps(40, end),
            blink-caret 0.75s step-end infinite;
        }

        @keyframes typing {
          from {
            width: 0;
          }
          to {
            width: 100%;
          }
        }

        @keyframes blink-caret {
          from,
          to {
            border-color: transparent;
          }
          50% {
            border-color: var(--color-accent-cyan);
          }
        }

        /* Mobile Responsive */
        @media (max-width: 768px) {
          .modal-content {
            max-width: 100%;
            max-height: 100vh;
            border-radius: 0;
          }

          .primary-stats {
            grid-template-columns: 1fr;
          }

          .loot-grid {
            grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
          }

          .roster-grid {
            grid-template-columns: 1fr;
          }
        }
      `,
    ];
  }

  constructor() {
    super();
    this.result = null;
    this._typewriterTexts = new Map();
  }

  firstUpdated() {
    const dialog = this.shadowRoot?.querySelector("dialog");
    if (dialog && this.result) {
      dialog.showModal();
      // Prevent closing on backdrop click or ESC (user must click return button)
      dialog.addEventListener("cancel", (e) => {
        e.preventDefault();
      });
      dialog.addEventListener("click", (e) => {
        // Only close if clicking the backdrop, not the content
        if (e.target === dialog) {
          e.preventDefault();
        }
      });
      this._startAnimations();
    }
  }

  updated(changedProperties) {
    if (changedProperties.has("result") && this.result) {
      const dialog = this.shadowRoot?.querySelector("dialog");
      if (dialog && !dialog.open) {
        dialog.showModal();
      }
      this._startAnimations();
    }
  }

  /**
   * Starts animations for XP bar and typewriter effects
   * @private
   */
  _startAnimations() {
    // Animate XP bar
    this.updateComplete.then(() => {
      const xpBar = this.shadowRoot?.querySelector(".xp-bar-fill");
      if (xpBar && this.result) {
        // Calculate percentage (assuming max XP of 1000 for now)
        const maxXp = 1000;
        const percentage = Math.min((this.result.xpEarned / maxXp) * 100, 100);
        setTimeout(() => {
          xpBar.style.width = `${percentage}%`;
        }, 100);
      }
    });
  }

  /**
   * Gets item display name
   * @param {Object} item - Item instance
   * @returns {string}
   */
  _getItemName(item) {
    return item.name || item.defId || "Unknown Item";
  }

  /**
   * Gets item icon
   * @param {Object} item - Item instance
   * @returns {string|null}
   */
  _getItemIcon(item) {
    return item.icon || null;
  }

  /**
   * Handles return to hub button click
   * @private
   */
  _handleReturn() {
    const dialog = this.shadowRoot?.querySelector("dialog");
    if (dialog) {
      dialog.close();
    }
    this.dispatchEvent(
      new CustomEvent("return-to-hub", {
        bubbles: true,
        composed: true,
      })
    );
  }

  render() {
    if (!this.result) {
      return html``;
    }

    const isVictory = this.result.outcome === "VICTORY";
    const headerClass = isVictory ? "victory" : "defeat";
    const headerText = isVictory ? "MISSION ACCOMPLISHED" : "MISSION FAILED";

    return html`
      <dialog>
        <div class="modal-content">
          <!-- Header -->
          <header class="header ${headerClass}">
            <h1 class="typewriter">${headerText}</h1>
            <div class="mission-title">
              ${this.result.missionTitle || "Mission"}
            </div>
          </header>

          <!-- Content -->
          <div class="content">
            <!-- Primary Stats -->
            <div class="primary-stats">
              <div class="stat-card">
                <div class="stat-label">XP Gained</div>
                <div class="stat-value xp-display">${this.result.xpEarned}</div>
                <div class="xp-bar-container">
                  <div class="xp-bar-fill"></div>
                </div>
              </div>
              ${this.result.turnsTaken !== undefined
                ? html`
                    <div class="stat-card">
                      <div class="stat-label">Turns Taken</div>
                      <div class="stat-value turns-display">
                        ${this.result.turnsTaken}
                      </div>
                    </div>
                  `
                : html`<div class="stat-card">
                    <div class="stat-label">Turns Taken</div>
                    <div class="stat-value turns-display">-</div>
                  </div>`}
            </div>

            <!-- Rewards Panel -->
            <div class="rewards-panel">
              <h2>Rewards</h2>

              <!-- Currency -->
              <div class="currency-display">
                <div class="currency-item">
                  <span>💎</span>
                  <span>${this.result.currency?.shards || 0} Shards</span>
                </div>
                <div class="currency-item">
                  <span>⚙️</span>
                  <span>${this.result.currency?.cores || 0} Cores</span>
                </div>
              </div>

              <!-- Loot Grid -->
              ${this.result.loot && this.result.loot.length > 0
                ? html`
                    <div class="loot-grid">
                      ${this.result.loot.map(
                        (item) => html`
                          <div
                            class="item-card"
                            title="${this._getItemName(item)}"
                          >
                            ${this._getItemIcon(item)
                              ? html`<img
                                  src="${this._getItemIcon(item)}"
                                  alt="${this._getItemName(item)}"
                                />`
                              : html`<span aria-hidden="true">📦</span>`}
                            <div class="item-name">
                              ${this._getItemName(item)}
                            </div>
                            ${item.quantity > 1
                              ? html`<div class="item-quantity">
                                  x${item.quantity}
                                </div>`
                              : html``}
                          </div>
                        `
                      )}
                    </div>
                  `
                : html`<p style="color: var(--color-text-secondary);">
                    No loot found
                  </p>`}

              <!-- Reputation -->
              ${this.result.reputationChanges &&
              this.result.reputationChanges.length > 0
                ? html`
                    <div class="reputation-display">
                      ${this.result.reputationChanges.map(
                        (rep) => html`
                          <div class="reputation-item">
                            <span class="reputation-name"
                              >${rep.factionId}</span
                            >
                            <span class="reputation-amount">
                              ${rep.amount > 0 ? "+" : ""}${rep.amount}
                            </span>
                          </div>
                        `
                      )}
                    </div>
                  `
                : html``}
            </div>

            <!-- Roster Status -->
            ${this.result.squadUpdates && this.result.squadUpdates.length > 0
              ? html`
                  <div class="roster-status">
                    <h2>Squad Status</h2>
                    <div class="roster-grid">
                      ${this.result.squadUpdates.map(
                        (unit) => html`
                          <div
                            class="unit-status ${unit.isDead
                              ? "dead"
                              : unit.damageTaken > 0
                              ? "injured"
                              : ""}"
                          >
                            ${unit.leveledUp
                              ? html`<div class="level-up-badge">
                                  Level Up!
                                </div>`
                              : html``}
                            <div class="unit-portrait">⚔️</div>
                            <div class="unit-name">${unit.unitId}</div>
                            <div class="unit-status-text">
                              ${unit.isDead
                                ? "Dead"
                                : unit.damageTaken > 0
                                ? "Injured"
                                : "OK"}
                            </div>
                          </div>
                        `
                      )}
                    </div>
                  </div>
                `
              : html``}
          </div>

          <!-- Footer -->
          <footer class="footer">
            <button
              class="btn btn-primary return-button"
              @click=${this._handleReturn}
            >
              RETURN TO BASE
            </button>
          </footer>
        </div>
      </dialog>
    `;
  }
}

customElements.define("mission-debrief", MissionDebrief);