aboutsummaryrefslogtreecommitdiff
path: root/lib/stitched_article.ml
blob: d512b39c38eec45d3bb55500a1c00bffad11c34e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
module Grep = Grep
module Common = Common
open Notty
module Input_prompt = Input_prompt
module Help_screen = Help_screen

type state =
  { pos : int * int
  ; scroll : int
  ; content : (string * int * string * int) array
  ; go_back : unit -> unit
  ; content_pretty : (int * Grep.display_type) array
  ; goto_todos_view : (unit -> unit) -> unit
  ; goto_done_view : (unit -> unit) -> unit
  }

let title = I.strf ~attr:A.(st bold) "%s" "Note View" |> I.pad ~l:0 ~t:0
let content_start = 1

(* TODO: Use grep -l to filter notes by regexp and rerender those files*)
let rec render
  t
  ({ pos; scroll; content_pretty; go_back; content; goto_todos_view; goto_done_view } as
   state)
  =
  let size_x, size_y = Common.Term.size t in
  let x, y = pos in
  let img =
    let elements =
      Array.mapi
        (fun i (_, el) -> Compontent.current_line size_x y scroll el (i + content_start))
        (* TODO: Fix this ugly slow conversion *)
        (Array.to_seq content_pretty |> Seq.drop scroll |> Array.of_seq)
    in
    let open I in
    Array.fold_left (fun sum el -> el </> sum) title elements
  in
  Common.Term.image t img;
  let content_length = Array.length content_pretty in
  let scroll_up () =
    let scroll = if y - content_start - scroll = 0 then max (scroll - 1) 0 else scroll in
    render t @@ { state with pos = x, max (y - 1) content_start; scroll }
  in
  let scroll_down () =
    let scroll = if y - scroll >= size_y - 1 then scroll + 1 else scroll in
    render t @@ { state with pos = x, min (y + 1) (content_length - 1); scroll }
  in
  match Common.Term.event t with
  | `End | `Key (`Escape, []) | `Key (`ASCII 'q', []) | `Key (`ASCII 'C', [ `Ctrl ]) -> ()
  | `Mouse (`Press (`Scroll s), _, _) ->
    (match s with
     | `Down -> scroll_down ()
     | `Up -> scroll_up ())
  | `Resize _ -> render t state
  | `Key (`ASCII 'f', []) -> go_back ()
  | `Mouse ((`Press _ | `Drag), (_, y), _) ->
    render t { state with pos = 0, min y content_length }
  | `Key (`ASCII 'j', []) | `Key (`ASCII 'N', [ `Ctrl ]) -> scroll_down ()
  | `Key (`ASCII 'k', []) | `Key (`ASCII 'P', [ `Ctrl ]) -> scroll_up ()
  | `Key (`ASCII 's', []) ->
    let (input_state : Input_prompt.state) =
      { screen = img
      ; user_input = ""
      ; prompt = "REGEXP: "
      ; on_enter =
          (fun tag ->
            try
              let content = Grep.get_file_names tag |> Array.of_list in
              let oc = open_out "/tmp/stitch-output" in
              Printf.fprintf oc "%s\n" (String.concat "\n" (content |> Array.to_list));
              close_out oc;
              let content =
                Array.map
                  (fun file_name -> Grep.get_full_file_content_content file_name)
                  content
                |> Array.to_list
              in
              let content = Grep.parse_full_content content in
              let content_pretty =
                Grep.pretty_print_parsed_content content |> Array.of_list
              in
              Common.Term.cursor t None;
              render
                t
                { state with
                  content = content |> Array.of_list
                ; content_pretty
                ; pos = 0, content_start
                ; scroll = 0
                }
            with
            | _ ->
              let oc = open_out "/tmp/stitch-error" in
              Printf.fprintf oc "%s\n" (Printexc.get_backtrace ());
              close_out oc;
              raise (Invalid_argument "FAILURE"))
      ; on_cancel =
          (fun _ ->
            Common.Term.cursor t None;
            render t state)
      }
    in
    Input_prompt.render t input_state
  | `Key (`ASCII '?', []) -> Help_screen.render t { go_back = (fun () -> render t state) }
  | `Key (`ASCII '2', []) -> goto_todos_view (fun () -> render t state)
  | `Key (`ASCII '3', []) -> goto_done_view (fun () -> render t state)
  | `Key (`ASCII 'e', []) | `Key (`Enter, []) ->
    (* Editor might be set with extra args, in that case we need to separate these *)
    let[@warning "-8"] (editor :: args) =
      String.split_on_char ' ' (Sys.getenv "EDITOR")
    in
    let file_number_offset, _ = Array.get content_pretty (y - content_start) in
    let selected_file, line_number, _, _ =
      Array.get content (y - content_start - file_number_offset)
    in
    let full_path_file = Grep.execution_directory ^ "/" ^ selected_file in
    (* Because each file title consists of two lines, we need to account for the offset
       it adds by removing the file_number *)
    let line_number_arg = "+" ^ Int.to_string line_number in
    let full_args =
      Array.append (Array.of_list args) [| ""; full_path_file; line_number_arg |]
    in
    Common.Term.cursor t (Some (0, 0));
    let _ =
      Unix.create_process_env
        editor
        full_args
        (Unix.environment ())
        Unix.stdin
        Unix.stdout
        Unix.stderr
    in
    let rec run_editor () =
      match Unix.wait () with
      | _, _ ->
        Common.Term.cursor t None;
        render t state
      (* Capture resizing events *)
      | exception Unix.Unix_error (Unix.EINTR, _, _) -> run_editor ()
      | exception Unix.Unix_error (_, str_err, str_err_2) ->
        let oc = open_out "/tmp/stitch-error" in
        Printf.fprintf oc "%s: %s" str_err str_err_2;
        close_out oc;
        failwith "ERROR"
    in
    run_editor ()
  | `Key (`Arrow d, _) ->
    (match d with
     | `Up -> scroll_up ()
     | `Down -> scroll_down ()
     | _ -> render t state)
  | _ -> render t state