const {Gdk, Gtk} = imports.gi
import {App, Service, Utils, Widget} from "../imports.js"
import Applications from "resource:///com/github/Aylur/ags/service/applications.js"
import Hyprland from "resource:///com/github/Aylur/ags/service/hyprland.js"
const {execAsync, exec} = Utils
import {setupCursorHover, setupCursorHoverAim} from "./lib/cursorhover.js"
import {MaterialIcon} from "./lib/materialicon.js"
import {searchItem} from "./lib/searchitem.js"
import {ContextMenuItem} from "./lib/contextmenuitem.js"
import Todo from "../scripts/todo.js"

var searching = false
// Add math funcs
const {abs, sin, cos, tan, cot, asin, acos, atan, acot} = Math
const pi = Math.PI
// trigonometric funcs for deg
const sind = x => sin((x * pi) / 180)
const cosd = x => cos((x * pi) / 180)
const tand = x => tan((x * pi) / 180)
const cotd = x => cot((x * pi) / 180)
const asind = x => (asin(x) * 180) / pi
const acosd = x => (acos(x) * 180) / pi
const atand = x => (atan(x) * 180) / pi
const acotd = x => (acot(x) * 180) / pi

const MAX_RESULTS = 10
const OVERVIEW_SCALE = 0.18 // = overview workspace box / screen size
const TARGET = [Gtk.TargetEntry.new("text/plain", Gtk.TargetFlags.SAME_APP, 0)]
const searchPromptTexts = [
  'Try "Kolourpaint"',
  'Try "6*cos(pi)"',
  'Try "sudo pacman -Syu"',
  'Try "How to basic"',
  "Drag n' drop to move windows",
  "Type to search",
]

function execAndClose(command, terminal) {
  App.closeWindow("overview")
  if (terminal) {
    execAsync([`bash`, `-c`, `foot fish -C "${command}"`, `&`]).catch(print)
  } else execAsync(command).catch(print)
}

function startsWithNumber(str) {
  var pattern = /^\d/
  return pattern.test(str)
}

function substitute(str) {
  const subs = [
    {from: "code-url-handler", to: "visual-studio-code"},
    {from: "Code", to: "visual-studio-code"},
    {from: "GitHub Desktop", to: "github-desktop"},
    {from: "wpsoffice", to: "wps-office2019-kprometheus"},
    {from: "gnome-tweaks", to: "org.gnome.tweaks"},
    {from: "Minecraft* 1.20.1", to: "minecraft"},
    {from: "", to: "image-missing"},
  ]

  for (const {from, to} of subs) {
    if (from === str) return to
  }

  return str
}

function destroyContextMenu(menu) {
  if (menu !== null) {
    menu.remove_all()
    menu.destroy()
    menu = null
  }
}
const CalculationResultButton = ({result, text}) =>
  searchItem({
    materialIconName: "calculate",
    name: `Math result`,
    actionName: "Copy",
    content: `${result}`,
    onActivate: () => {
      App.closeWindow("overview")
      console.log(result)
      execAsync(["bash", "-c", `wl-copy '${result}'`, `&`]).catch(print)
    },
  })

const CustomCommandButton = ({text = ""}) =>
  searchItem({
    materialIconName: "settings_suggest",
    name: "Action",
    actionName: "Run",
    content: `${text}`,
    onActivate: () => {
      App.closeWindow("overview")
      launchCustomCommand(text)
    },
  })

const SearchButton = ({text = ""}) =>
  searchItem({
    materialIconName: "travel_explore",
    name: "Search Google",
    actionName: "Go",
    content: `${text}`,
    onActivate: () => {
      App.closeWindow("overview")
      execAsync(["xdg-open", `https://www.google.com/search?q=${text}`]).catch(print)
    },
  })

const ContextWorkspaceArray = ({label, onClickBinary, thisWorkspace}) =>
  Widget({
    type: Gtk.MenuItem,
    label: `${label}`,
    setup: menuItem => {
      let submenu = new Gtk.Menu()
      submenu.className = "menu"
      for (let i = 1; i <= 10; i++) {
        let button = new Gtk.MenuItem({label: `${i}`})
        button.connect("activate", () => {
          execAsync([`${onClickBinary}`, `${thisWorkspace}`, `${i}`]).catch(print)
        })
        submenu.append(button)
      }
      menuItem.set_reserve_indicator(true)
      menuItem.set_submenu(submenu)
    },
  })

const client = ({address, size: [w, h], workspace: {id, name}, class: c, title}) =>
  Widget.Button({
    className: "overview-tasks-window",
    halign: "center",
    valign: "center",
    onClicked: () => {
      execAsync([`bash`, `-c`, `hyprctl dispatch focuswindow address:${address}`, `&`]).catch(print)
      App.closeWindow("overview")
    },
    onMiddleClick: () =>
      execAsync([`bash`, `-c`, `hyprctl dispatch closewindow address:${address}`, `&`]).catch(print),
    onSecondaryClick: button => {
      button.toggleClassName("overview-tasks-window-selected", true)
      const menu = Widget({
        type: Gtk.Menu,
        className: "menu",
        setup: menu => {
          menu.append(
            ContextMenuItem({
              label: "Close (Middle-click)",
              onClick: () => {
                execAsync([`bash`, `-c`, `hyprctl dispatch closewindow address:${address}`, `&`]).catch(print)
                destroyContextMenu(menu)
              },
            }),
          )
          menu.append(
            ContextWorkspaceArray({
              label: "Dump windows to workspace",
              onClickBinary: `${App.configDir}/scripts/dumptows`,
              thisWorkspace: Number(id),
            }),
          )
          menu.append(
            ContextWorkspaceArray({
              label: "Swap windows with workspace",
              onClickBinary: `${App.configDir}/scripts/dumptows`,
              thisWorkspace: Number(id),
            }),
          )
          menu.show_all()
        },
      })
      menu.connect("deactivate", () => {
        button.toggleClassName("overview-tasks-window-selected", false)
      })
      menu.connect("selection-done", () => {
        button.toggleClassName("overview-tasks-window-selected", false)
      })
      menu.popup_at_pointer(null) // Show the menu at the pointer's position
    },
    child: Widget.Box({
      vertical: true,
      children: [
        Widget.Icon({
          style: `
            min-width: ${w * OVERVIEW_SCALE - 4}px;
            min-height: ${h * OVERVIEW_SCALE - 4}px;
            `,
          size: (Math.min(w, h) * OVERVIEW_SCALE) / 2.5,
          icon: substitute(c),
        }),
        Widget.Scrollable({
          hexpand: true,
          vexpand: true,
          child: Widget.Label({
            style: `
                font-size: ${(Math.min(w, h) * OVERVIEW_SCALE) / 20}px;
                `,
            label: title,
          }),
        }),
      ],
    }),
    tooltipText: `${c}: ${title}`,
    setup: button => {
      setupCursorHoverAim(button)

      button.drag_source_set(Gdk.ModifierType.BUTTON1_MASK, TARGET, Gdk.DragAction.MOVE)
      button.drag_source_set_icon_name(substitute(c))
      // button.drag_source_set_icon_gicon(icon);

      button.connect("drag-begin", button => {
        // On drag start, add the dragging class
        button.toggleClassName("overview-tasks-window-dragging", true)
      })
      button.connect("drag-data-get", (_w, _c, data) => {
        // On drag finish, give address
        data.set_text(address, address.length)
        button.toggleClassName("overview-tasks-window-dragging", false)
      })

      // button.drag_source_set(Gdk.ModifierType.BUTTON1_MASK, TARGET, Gdk.DragAction.COPY);
      // button.connect('drag-data-get', (_w, _c, data) => data.set_text(address, address.length));
      // button.connect('drag-begin', (_, context) => {
      //     Gtk.drag_set_icon_surface(context, createSurfaceFromWidget(button));
      //     button.toggleClassName('hidden', true);
      // });
      // button.connect('drag-end', () => button.toggleClassName('hidden', false));
    },
  })

const workspace = index => {
  const fixed = Gtk.Fixed.new()
  const widget = Widget.Box({
    className: "overview-tasks-workspace",
    valign: "center",
    style: `
        min-width: ${SCREEN_WIDTH * OVERVIEW_SCALE}px;
        min-height: ${SCREEN_HEIGHT * OVERVIEW_SCALE}px;
        `,
    connections: [
      [
        Hyprland,
        box => {
          box.toggleClassName("active", Hyprland.active.workspace.id === index)
        },
      ],
    ],
    children: [
      Widget.EventBox({
        hexpand: true,
        vexpand: true,
        onPrimaryClickRelease: () => {
          execAsync([`bash`, `-c`, `hyprctl dispatch workspace ${index}`, `&`]).catch(print)
          App.closeWindow("overview")
        },
        // onSecondaryClick: (eventbox) => {
        //     const menu = Widget({
        //         type: Gtk.Menu,
        //         setup: menu => {
        //             menu.append(ContextWorkspaceArray({ label: "Dump windows to workspace", onClickBinary: `${App.configDir}/scripts/dumptows`, thisWorkspace: Number(index) }));
        //             menu.append(ContextWorkspaceArray({ label: "Swap windows with workspace", onClickBinary: `${App.configDir}/scripts/dumptows`, thisWorkspace: Number(index) }));
        //             menu.show_all();
        //         }
        //     });
        //     menu.popup_at_pointer(null); // Show the menu at the pointer's position
        // },
        setup: eventbox => {
          eventbox.drag_dest_set(Gtk.DestDefaults.ALL, TARGET, Gdk.DragAction.COPY)
          eventbox.connect("drag-data-received", (_w, _c, _x, _y, data) => {
            execAsync([
              `bash`,
              `-c`,
              `hyprctl dispatch movetoworkspacesilent ${index},address:${data.get_text()}`,
              `&`,
            ]).catch(print)
          })
        },
        child: fixed,
      }),
    ],
  })
  widget.update = clients => {
    clients = clients.filter(({workspace: {id}}) => id === index)

    // this is for my monitor layout
    // shifts clients back by SCREEN_WIDTHpx if necessary
    clients = clients.map(client => {
      // console.log(client);
      const [x, y] = client.at
      if (x > SCREEN_WIDTH) client.at = [x - SCREEN_WIDTH, y]
      return client
    })

    fixed.get_children().forEach(ch => ch.destroy())
    clients.forEach(c => c.mapped && fixed.put(client(c), c.at[0] * OVERVIEW_SCALE, c.at[1] * OVERVIEW_SCALE))
    fixed.show_all()
  }
  return widget
}

const arr = (s, n) => {
  const array = []
  for (let i = 0; i < n; i++) array.push(s + i)

  return array
}

const OverviewRow = ({startWorkspace = 1, workspaces = 5, windowName = "overview"}) =>
  Widget.Box({
    children: arr(startWorkspace, workspaces).map(workspace),
    properties: [
      [
        "update",
        box => {
          execAsync("hyprctl -j clients")
            .then(clients => {
              const json = JSON.parse(clients)
              box.get_children().forEach(ch => ch.update(json))
            })
            .catch(print)
        },
      ],
    ],
    setup: box => box._update(box),
    connections: [
      [
        Hyprland,
        box => {
          if (!App.getWindow(windowName).visible) return

          box._update(box)
        },
      ],
    ],
  })

export const SearchAndWindows = () => {
  var _appSearchResults = []

  const clickOutsideToClose = Widget.EventBox({
    onPrimaryClick: () => App.closeWindow("overview"),
    onSecondaryClick: () => App.closeWindow("overview"),
    onMiddleClick: () => App.closeWindow("overview"),
  })
  const resultsBox = Widget.Box({
    className: "spacing-v-15 overview-search-results",
    vertical: true,
    vexpand: true,
  })
  const resultsRevealer = Widget.Revealer({
    transitionDuration: 200,
    revealChild: false,
    transition: "slide_down",
    // duration: 200,
    halign: "center",
    child: resultsBox,
  })
  const overviewRevealer = Widget.Revealer({
    revealChild: true,
    transition: "slide_down",
    transitionDuration: 200,
    child: Widget.Box({
      vertical: true,
      className: "overview-tasks",
      children: [
        OverviewRow({startWorkspace: 1, workspaces: 5}),
        OverviewRow({startWorkspace: 6, workspaces: 5}),
      ],
    }),
  })
  const entryPromptRevealer = Widget.Revealer({
    transition: "crossfade",
    transitionDuration: 150,
    revealChild: true,
    halign: "center",
    child: Widget.Label({
      className: "overview-search-prompt txt-small txt",
      label: searchPromptTexts[Math.floor(Math.random() * searchPromptTexts.length)],
    }),
  })

  const entryIconRevealer = Widget.Revealer({
    transition: "crossfade",
    transitionDuration: 150,
    revealChild: false,
    halign: "end",
    child: Widget.Label({
      className: "txt txt-large icon-material overview-search-icon",
      label: "search",
    }),
  })

  const entryIcon = Widget.Box({
    className: "overview-search-prompt-box",
    setup: box => box.pack_start(entryIconRevealer, true, true, 0),
  })

  const entry = Widget.Entry({
    className: "overview-search-box txt-small txt",
    halign: "center",
    onAccept: ({text}) => {
      // This is when you press Enter
      const isAction = text.startsWith(">")
      if (startsWithNumber(text)) {
        // Eval on typing is dangerous, this is a workaround
        try {
          const fullResult = eval(text)
          // copy
          execAsync(["bash", "-c", `wl-copy '${fullResult}'`, `&`]).catch(print)
          App.closeWindow("overview")
          return
        } catch (e) {
          // console.log(e);
        }
      }
      if (_appSearchResults.length > 0) {
        App.closeWindow("overview")
        _appSearchResults[0].launch()
        return
      } else if (text[0] == ">") {
        // Custom commands
        launchCustomCommand(text)
        return
      }
      // Fallback: Execute command
      if (!isAction && exec(`bash -c "command -v ${text.split(" ")[0]}"`) != "") {
        if (text.startsWith("sudo")) execAndClose(text, true)
        else execAndClose(text, false)
      } else {
        App.closeWindow("overview")
        execAsync(["xdg-open", `https://www.google.com/search?q=${text}`]).catch(print)
      }
    },
    // Actually onChange but this is ta workaround for a bug
    connections: [
      [
        "notify::text",
        entry => {
          // This is when you type
          const isAction = entry.text.startsWith(">")
          resultsBox.get_children().forEach(ch => ch.destroy())
          //check empty if so then dont do stuff
          if (entry.text == "") {
            resultsRevealer.set_reveal_child(false)
            overviewRevealer.set_reveal_child(true)
            entryPromptRevealer.set_reveal_child(true)
            entryIconRevealer.set_reveal_child(false)
            entry.toggleClassName("overview-search-box-extended", false)
            searching = false
          } else {
            const text = entry.text
            resultsRevealer.set_reveal_child(true)
            overviewRevealer.set_reveal_child(false)
            entryPromptRevealer.set_reveal_child(false)
            entryIconRevealer.set_reveal_child(true)
            entry.toggleClassName("overview-search-box-extended", true)
            _appSearchResults = Applications.query(text)

            // Calculate
            if (startsWithNumber(text)) {
              // Eval on typing is dangerous, this is a workaround.
              try {
                const fullResult = eval(text)
                resultsBox.add(CalculationResultButton({result: fullResult, text: text}))
              } catch (e) {
                // console.log(e);
              }
            }
            if (isAction) {
              // Eval on typing is dangerous, this is a workaround.
              resultsBox.add(CustomCommandButton({text: entry.text}))
            }
            // Add application entries
            let appsToAdd = MAX_RESULTS
            _appSearchResults.forEach(app => {
              if (appsToAdd == 0) return
              resultsBox.add(DesktopEntryButton(app))
              appsToAdd--
            })

            // Fallbacks
            // if the first word is an actual command
            if (!isAction && exec(`bash -c "command -v ${text.split(" ")[0]}"`) != "") {
              resultsBox.add(
                ExecuteCommandButton({command: entry.text, terminal: entry.text.startsWith("sudo")}),
              )
            }

            // Add fallback: search
            resultsBox.add(SearchButton({text: entry.text}))
            resultsBox.show_all()
            searching = true
          }
        },
      ],
    ],
  })

  return Widget.Box({
    vertical: true,
    children: [
      clickOutsideToClose,
      Widget.Box({
        halign: "center",
        children: [
          entry,
          Widget.Box({
            className: "overview-search-icon-box",
            setup: box => box.pack_start(entryPromptRevealer, true, true, 0),
          }),
          entryIcon,
        ],
      }),
      overviewRevealer,
      resultsRevealer,
    ],
    connections: [
      [
        App,
        (_b, name, visible) => {
          if (name == "overview" && !visible) {
            entryPromptRevealer.child.label =
              searchPromptTexts[Math.floor(Math.random() * searchPromptTexts.length)]
            resultsBox.children = []
            entry.set_text("")
          }
        },
      ],
    ],
  })
}