/*!
 * All material copyright ESRI, All Rights Reserved, unless otherwise specified.
 * See https://github.com/Esri/calcite-components/blob/master/LICENSE.md for details.
 * v1.0.0-beta.82
 */
import { Component, Element, Event, h, Listen, Method, Prop, Watch } from "@stencil/core";
/**
 * @slot - A slot for adding `calcite-stepper-item`s.
 */
export class Stepper {
  constructor() {
    //--------------------------------------------------------------------------
    //
    //  Public Properties
    //
    //--------------------------------------------------------------------------
    /** optionally display a status icon next to the step title */
    this.icon = false;
    /** specify the layout of stepper, defaults to horizontal */
    this.layout = "horizontal";
    /** optionally display the number next to the step title */
    this.numbered = false;
    /** specify the scale of stepper, defaults to m */
    this.scale = "m";
    //--------------------------------------------------------------------------
    //
    //  Private State/Props
    //
    //--------------------------------------------------------------------------
    this.itemMap = new Map();
    /** list of sorted Stepper items */
    this.items = [];
    /** list of enabled Stepper items */
    this.enabledItems = [];
  }
  // watch for removal of disabled to register step
  contentWatcher() {
    if (this.layout === "horizontal") {
      if (!this.stepperContentContainer && this.requestedContent) {
        this.addHorizontalContentContainer();
      }
      this.updateContent(this.requestedContent);
    }
  }
  //--------------------------------------------------------------------------
  //
  //  Lifecycle
  //
  //--------------------------------------------------------------------------
  componentDidLoad() {
    // if no stepper items are set as active, default to the first one
    if (!this.currentPosition) {
      this.calciteStepperItemChange.emit({
        position: 0
      });
    }
  }
  componentWillLoad() {
    if (this.layout === "horizontal" && !this.stepperContentContainer) {
      this.addHorizontalContentContainer();
    }
  }
  render() {
    return h("slot", null);
  }
  //--------------------------------------------------------------------------
  //
  //  Event Listeners
  //
  //--------------------------------------------------------------------------
  calciteStepperItemKeyEvent(e) {
    const item = e.detail.item;
    const itemToFocus = e.target;
    const isFirstItem = this.itemIndex(itemToFocus) === 0;
    const isLastItem = this.itemIndex(itemToFocus) === this.enabledItems.length - 1;
    switch (item.key) {
      case "ArrowDown":
      case "ArrowRight":
        if (isLastItem) {
          this.focusFirstItem();
        }
        else {
          this.focusNextItem(itemToFocus);
        }
        break;
      case "ArrowUp":
      case "ArrowLeft":
        if (isFirstItem) {
          this.focusLastItem();
        }
        else {
          this.focusPrevItem(itemToFocus);
        }
        break;
      case "Home":
        this.focusFirstItem();
        break;
      case "End":
        this.focusLastItem();
        break;
    }
  }
  registerItem(event) {
    const item = event.target;
    const { content, position } = event.detail;
    if (content && item.active) {
      this.requestedContent = content;
    }
    this.itemMap.set(item, position);
    this.items = this.sortItems();
    this.enabledItems = this.filterItems();
  }
  updateItem(event) {
    if (event.detail.content) {
      this.requestedContent = event.detail.content;
    }
    this.currentPosition = event.detail.position;
    this.calciteStepperItemChange.emit({
      position: this.currentPosition
    });
  }
  //--------------------------------------------------------------------------
  //
  //  Public Methods
  //
  //--------------------------------------------------------------------------
  /** set the next step as active */
  async nextStep() {
    const enabledStepIndex = this.getEnabledStepIndex(this.currentPosition + 1, "next");
    if (typeof enabledStepIndex !== "number") {
      return;
    }
    this.emitChangedItem(enabledStepIndex);
  }
  /** set the previous step as active */
  async prevStep() {
    const enabledStepIndex = this.getEnabledStepIndex(this.currentPosition - 1, "previous");
    if (typeof enabledStepIndex !== "number") {
      return;
    }
    this.emitChangedItem(enabledStepIndex);
  }
  /** set the requested step as active */
  async goToStep(step) {
    const position = step - 1;
    if (this.currentPosition !== position) {
      this.emitChangedItem(position);
    }
  }
  /** set the first step as active */
  async startStep() {
    const enabledStepIndex = this.getEnabledStepIndex(0, "next");
    if (typeof enabledStepIndex !== "number") {
      return;
    }
    this.emitChangedItem(enabledStepIndex);
  }
  /** set the last step as active */
  async endStep() {
    const enabledStepIndex = this.getEnabledStepIndex(this.items.length - 1, "previous");
    if (typeof enabledStepIndex !== "number") {
      return;
    }
    this.emitChangedItem(enabledStepIndex);
  }
  //--------------------------------------------------------------------------
  //
  //  Private Methods
  //
  //--------------------------------------------------------------------------
  getEnabledStepIndex(startIndex, direction = "next") {
    var _a;
    const { items, currentPosition } = this;
    let newIndex = startIndex;
    while ((_a = items[newIndex]) === null || _a === void 0 ? void 0 : _a.disabled) {
      newIndex = newIndex + (direction === "previous" ? -1 : 1);
    }
    return newIndex !== currentPosition && newIndex < items.length && newIndex >= 0
      ? newIndex
      : null;
  }
  addHorizontalContentContainer() {
    this.stepperContentContainer = document.createElement("div");
    this.stepperContentContainer.classList.add("calcite-stepper-content");
    this.el.insertAdjacentElement("beforeend", this.stepperContentContainer);
  }
  emitChangedItem(position) {
    this.currentPosition = position;
    this.calciteStepperItemChange.emit({
      position
    });
  }
  focusFirstItem() {
    const firstItem = this.enabledItems[0];
    this.focusElement(firstItem);
  }
  focusLastItem() {
    const lastItem = this.enabledItems[this.enabledItems.length - 1];
    this.focusElement(lastItem);
  }
  focusNextItem(e) {
    const index = this.itemIndex(e);
    const nextItem = this.enabledItems[index + 1] || this.enabledItems[0];
    this.focusElement(nextItem);
  }
  focusPrevItem(e) {
    const index = this.itemIndex(e);
    const prevItem = this.enabledItems[index - 1] || this.enabledItems[this.enabledItems.length - 1];
    this.focusElement(prevItem);
  }
  itemIndex(e) {
    return this.enabledItems.indexOf(e);
  }
  focusElement(item) {
    item.focus();
  }
  sortItems() {
    const { itemMap } = this;
    return Array.from(itemMap.keys()).sort((a, b) => itemMap.get(a) - itemMap.get(b));
  }
  filterItems() {
    return this.items.filter((item) => !item.disabled);
  }
  updateContent(content) {
    this.stepperContentContainer.innerHTML = "";
    this.stepperContentContainer.append(...content);
  }
  static get is() { return "calcite-stepper"; }
  static get encapsulation() { return "shadow"; }
  static get originalStyleUrls() { return {
    "$": ["stepper.scss"]
  }; }
  static get styleUrls() { return {
    "$": ["stepper.css"]
  }; }
  static get properties() { return {
    "icon": {
      "type": "boolean",
      "mutable": false,
      "complexType": {
        "original": "boolean",
        "resolved": "boolean",
        "references": {}
      },
      "required": false,
      "optional": false,
      "docs": {
        "tags": [],
        "text": "optionally display a status icon next to the step title"
      },
      "attribute": "icon",
      "reflect": true,
      "defaultValue": "false"
    },
    "layout": {
      "type": "string",
      "mutable": false,
      "complexType": {
        "original": "Layout",
        "resolved": "\"grid\" | \"horizontal\" | \"vertical\"",
        "references": {
          "Layout": {
            "location": "import",
            "path": "../interfaces"
          }
        }
      },
      "required": false,
      "optional": false,
      "docs": {
        "tags": [],
        "text": "specify the layout of stepper, defaults to horizontal"
      },
      "attribute": "layout",
      "reflect": true,
      "defaultValue": "\"horizontal\""
    },
    "numbered": {
      "type": "boolean",
      "mutable": false,
      "complexType": {
        "original": "boolean",
        "resolved": "boolean",
        "references": {}
      },
      "required": false,
      "optional": false,
      "docs": {
        "tags": [],
        "text": "optionally display the number next to the step title"
      },
      "attribute": "numbered",
      "reflect": true,
      "defaultValue": "false"
    },
    "scale": {
      "type": "string",
      "mutable": false,
      "complexType": {
        "original": "Scale",
        "resolved": "\"l\" | \"m\" | \"s\"",
        "references": {
          "Scale": {
            "location": "import",
            "path": "../interfaces"
          }
        }
      },
      "required": false,
      "optional": false,
      "docs": {
        "tags": [],
        "text": "specify the scale of stepper, defaults to m"
      },
      "attribute": "scale",
      "reflect": true,
      "defaultValue": "\"m\""
    },
    "requestedContent": {
      "type": "unknown",
      "mutable": true,
      "complexType": {
        "original": "Node[]",
        "resolved": "Node[]",
        "references": {
          "Node": {
            "location": "global"
          }
        }
      },
      "required": false,
      "optional": false,
      "docs": {
        "tags": [{
            "name": "internal",
            "text": undefined
          }],
        "text": ""
      }
    }
  }; }
  static get events() { return [{
      "method": "calciteStepperItemChange",
      "name": "calciteStepperItemChange",
      "bubbles": true,
      "cancelable": true,
      "composed": true,
      "docs": {
        "tags": [{
            "name": "internal",
            "text": undefined
          }],
        "text": "This event fires when the active stepper item has changed."
      },
      "complexType": {
        "original": "StepperItemChangeEventDetail",
        "resolved": "StepperItemChangeEventDetail",
        "references": {
          "StepperItemChangeEventDetail": {
            "location": "import",
            "path": "./interfaces"
          }
        }
      }
    }]; }
  static get methods() { return {
    "nextStep": {
      "complexType": {
        "signature": "() => Promise<void>",
        "parameters": [],
        "references": {
          "Promise": {
            "location": "global"
          }
        },
        "return": "Promise<void>"
      },
      "docs": {
        "text": "set the next step as active",
        "tags": []
      }
    },
    "prevStep": {
      "complexType": {
        "signature": "() => Promise<void>",
        "parameters": [],
        "references": {
          "Promise": {
            "location": "global"
          }
        },
        "return": "Promise<void>"
      },
      "docs": {
        "text": "set the previous step as active",
        "tags": []
      }
    },
    "goToStep": {
      "complexType": {
        "signature": "(step: number) => Promise<void>",
        "parameters": [{
            "tags": [],
            "text": ""
          }],
        "references": {
          "Promise": {
            "location": "global"
          }
        },
        "return": "Promise<void>"
      },
      "docs": {
        "text": "set the requested step as active",
        "tags": []
      }
    },
    "startStep": {
      "complexType": {
        "signature": "() => Promise<void>",
        "parameters": [],
        "references": {
          "Promise": {
            "location": "global"
          }
        },
        "return": "Promise<void>"
      },
      "docs": {
        "text": "set the first step as active",
        "tags": []
      }
    },
    "endStep": {
      "complexType": {
        "signature": "() => Promise<void>",
        "parameters": [],
        "references": {
          "Promise": {
            "location": "global"
          }
        },
        "return": "Promise<void>"
      },
      "docs": {
        "text": "set the last step as active",
        "tags": []
      }
    }
  }; }
  static get elementRef() { return "el"; }
  static get watchers() { return [{
      "propName": "requestedContent",
      "methodName": "contentWatcher"
    }]; }
  static get listeners() { return [{
      "name": "calciteStepperItemKeyEvent",
      "method": "calciteStepperItemKeyEvent",
      "target": undefined,
      "capture": false,
      "passive": false
    }, {
      "name": "calciteStepperItemRegister",
      "method": "registerItem",
      "target": undefined,
      "capture": false,
      "passive": false
    }, {
      "name": "calciteStepperItemSelect",
      "method": "updateItem",
      "target": undefined,
      "capture": false,
      "passive": false
    }]; }
}