getprop("ro.product.device") == "lancelot" || abort("E3004: This package is for \"lancelot\" devices; this is a \"" + getprop("ro.product.device") + "\".");
ui_print("Source: Redmi/lancelot_eea/lancelot:10/QP1A.190711.020/V11.0.9.0.QJCEUXM:user/release-keys");
ui_print("Target: Redmi/lancelot_eea/lancelot:10/QP1A.190711.020/V12.0.1.0.QJCEUXM:user/release-keys");
ui_print("Verifying current system...");
getprop("ro.build.fingerprint") == "Redmi/lancelot_eea/lancelot:10/QP1A.190711.020/V11.0.9.0.QJCEUXM:user/release-keys" ||
    getprop("ro.build.fingerprint") == "Redmi/lancelot_eea/lancelot:10/QP1A.190711.020/V12.0.1.0.QJCEUXM:user/release-keys" ||
    abort("E3001: Package expects build fingerprint of Redmi/lancelot_eea/lancelot:10/QP1A.190711.020/V11.0.9.0.QJCEUXM:user/release-keys or Redmi/lancelot_eea/lancelot:10/QP1A.190711.020/V12.0.1.0.QJCEUXM:user/release-keys; this device has " + getprop("ro.build.fingerprint") + ".");
show_progress(0.100000, 10);
patch_partition_check("EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:26f0eb4a43a3b3b636e56caecb7296f3222b0f94",
                      "EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:a3c6d1f7a0b3e057a0c8afcddcfed6d8b4578f43") ||
    abort("E3005: \"EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:26f0eb4a43a3b3b636e56caecb7296f3222b0f94\" or \"EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:a3c6d1f7a0b3e057a0c8afcddcfed6d8b4578f43\" has unexpected contents.");
apply_patch_space(70344704) || abort("E3006: Not enough free space on /cache to apply patches.");
patch_partition_check("EMMC:/dev/block/platform/bootdevice/by-name/md1img:59066208:7a79c7aa9f626d79acd08c3396c2f72d6b899393",
                      "EMMC:/dev/block/platform/bootdevice/by-name/md1img:59070448:b384ea53a6ab57c766d055af703aa34ed01f8bd2") ||
    abort("E3005: \"EMMC:/dev/block/platform/bootdevice/by-name/md1img:59066208:7a79c7aa9f626d79acd08c3396c2f72d6b899393\" or \"EMMC:/dev/block/platform/bootdevice/by-name/md1img:59070448:b384ea53a6ab57c766d055af703aa34ed01f8bd2\" has unexpected contents.");
apply_patch_space(59066208) || abort("E3006: Not enough free space on /cache to apply patches.");
show_progress(0.100000, 70);
if (range_sha1(map_partition("system"), "190,1,195,196,32770,32917,34163,34179,34181,34187,58316,59003,59005,59029,72944,74013,77480,77487,98306,98453,163842,163989,178556,178557,181017,181018,229378,229525,294914,295061,307159,307163,308270,308274,341645,341736,342345,342527,347088,347162,361468,361518,369464,369501,369960,369963,369991,370057,370703,374412,374413,374436,375540,375544,376240,376243,376377,376379,379636,381341,381342,381356,400576,400609,400662,400978,402014,402334,429676,433946,434509,434640,434790,434923,435740,435870,436020,436153,441160,442201,460437,466793,510354,511065,511560,511794,511799,511808,516933,516939,516941,516962,516997,517013,517015,517017,517027,517028,517030,517031,517033,517035,517037,517038,517041,517042,517049,517054,517083,517084,517092,517093,517099,517102,517115,517117,517131,517133,517151,517152,517212,517214,517230,517236,517239,517249,517286,517300,517302,517305,517318,517319,517320,517323,517328,517329,517337,517341,517372,517373,517381,517383,517389,517391,517404,517406,517422,517424,517425,517426,517451,517453,517457,517458,517477,517478,517499,517501,517553,517556,517624,517626,517638,517639,517684,517697,518055,518074,518075,518147,519877,519883,519884,520010,522219,523026,523027,523032,523034,523103,523139,523140,589836,589845,601262,601273,601279,603103,612660,612793,612794") == "32d079b3394eb57d736e1933511ef4ea2ec4f61d" || block_image_verify(map_partition("system"), package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat")) then
ui_print("Verified system image...");
else
check_first_block(map_partition("system"));
ifelse (block_image_recover(map_partition("system"), "190,1,195,196,32770,32917,34163,34179,34181,34187,58316,59003,59005,59029,72944,74013,77480,77487,98306,98453,163842,163989,178556,178557,181017,181018,229378,229525,294914,295061,307159,307163,308270,308274,341645,341736,342345,342527,347088,347162,361468,361518,369464,369501,369960,369963,369991,370057,370703,374412,374413,374436,375540,375544,376240,376243,376377,376379,379636,381341,381342,381356,400576,400609,400662,400978,402014,402334,429676,433946,434509,434640,434790,434923,435740,435870,436020,436153,441160,442201,460437,466793,510354,511065,511560,511794,511799,511808,516933,516939,516941,516962,516997,517013,517015,517017,517027,517028,517030,517031,517033,517035,517037,517038,517041,517042,517049,517054,517083,517084,517092,517093,517099,517102,517115,517117,517131,517133,517151,517152,517212,517214,517230,517236,517239,517249,517286,517300,517302,517305,517318,517319,517320,517323,517328,517329,517337,517341,517372,517373,517381,517383,517389,517391,517404,517406,517422,517424,517425,517426,517451,517453,517457,517458,517477,517478,517499,517501,517553,517556,517624,517626,517638,517639,517684,517697,518055,518074,518075,518147,519877,519883,519884,520010,522219,523026,523027,523032,523034,523103,523139,523140,589836,589845,601262,601273,601279,603103,612660,612793,612794") && block_image_verify(map_partition("system"), package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat"), ui_print("system recovered successfully."), abort("E1004: system partition fails to recover"));
endif;
if (range_sha1(map_partition("vendor"), "18,1,819,837,838,843,10894,13746,32770,32806,98306,98342,131101,131102,151049,151517,153921,153966,153967") == "36b2a41a3a66fcf03e74b70c874d2b8239e86f80" || block_image_verify(map_partition("vendor"), package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat")) then
ui_print("Verified vendor image...");
else
check_first_block(map_partition("vendor"));
ifelse (block_image_recover(map_partition("vendor"), "18,1,819,837,838,843,10894,13746,32770,32806,98306,98342,131101,131102,151049,151517,153921,153966,153967") && block_image_verify(map_partition("vendor"), package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat"), ui_print("vendor recovered successfully."), abort("E2004: vendor partition fails to recover"));
endif;
if (range_sha1(map_partition("product"), "26,1,85,5375,5376,9712,9716,9807,11860,11962,32770,32838,98306,98374,163842,163910,229378,229446,229452,229453,262145,262151,280378,281225,285685,285754,285755") == "67a51488b114adb865c570c7bef1adc25f1b89f8" || block_image_verify(map_partition("product"), package_extract_file("product.transfer.list"), "product.new.dat", "product.patch.dat")) then
ui_print("Verified product image...");
else
ifelse (block_image_recover(map_partition("product"), "26,1,85,5375,5376,9712,9716,9807,11860,11962,32770,32838,98306,98374,163842,163910,229378,229446,229452,229453,262145,262151,280378,281225,285685,285754,285755") && block_image_verify(map_partition("product"), package_extract_file("product.transfer.list"), "product.new.dat", "product.patch.dat"), ui_print("product recovered successfully."), abort("E2004: product partition fails to recover"));
endif;

# ---- start making changes here ----

ui_print("Patching boot image...");
show_progress(0.100000, 10);
patch_partition("EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:26f0eb4a43a3b3b636e56caecb7296f3222b0f94",
                "EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:a3c6d1f7a0b3e057a0c8afcddcfed6d8b4578f43",
                package_extract_file("boot.img.p")) ||
    abort("E3008: Failed to apply patch to EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:a3c6d1f7a0b3e057a0c8afcddcfed6d8b4578f43");
show_progress(0.600000, 600);

# --- Start patching dynamic partitions ---


# Patch partition vendor

ui_print("Patching vendor image after verification.");
block_image_update(map_partition("vendor"), package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat") ||
  abort("E2001: Failed to update vendor image.");

# Update dynamic partition metadata

assert(update_dynamic_partitions(package_extract_file("dynamic_partitions_op_list")));

# Patch partition product

ui_print("Patching product image after verification.");
block_image_update(map_partition("product"), package_extract_file("product.transfer.list"), "product.new.dat", "product.patch.dat") ||
  abort("E2001: Failed to update product image.");

# Patch partition system

ui_print("Patching system image after verification.");
block_image_update(map_partition("system"), package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat") ||
  abort("E1001: Failed to update system image.");

# --- End patching dynamic partitions ---

show_progress(0.100000, 2);
show_mtupdate_stage("/cache/recovery/last_mtupdate_stage");
ifelse (
less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "1") ,
(
ui_print("start to update general image");
package_extract_file("logo.bin", "/dev/block/platform/bootdevice/by-name/logo");
package_extract_file("dtbo.img", "/dev/block/platform/bootdevice/by-name/dtbo");
package_extract_file("exaid.img", "/dev/block/platform/bootdevice/by-name/exaid");
ui_print("Patching md1img image...");
show_progress(0.100000, 10);
patch_partition("EMMC:/dev/block/platform/bootdevice/by-name/md1img:59066208:7a79c7aa9f626d79acd08c3396c2f72d6b899393",
                "EMMC:/dev/block/platform/bootdevice/by-name/md1img:59070448:b384ea53a6ab57c766d055af703aa34ed01f8bd2",
                package_extract_file("patch/md1img.img.p")) ||
    abort("E3008: Failed to apply patch to EMMC:/dev/block/platform/bootdevice/by-name/md1img:59070448:b384ea53a6ab57c766d055af703aa34ed01f8bd2");
package_extract_file("spmfw.img", "/dev/block/platform/bootdevice/by-name/spmfw");
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "1");
),
ui_print("general images are already updated");
);
ifelse (
less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "3") ,
(
if less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "2") then

ui_print("start to update alt loader image");
package_extract_file("sspm.img", "/dev/block/platform/bootdevice/by-name/sspm_2");
package_extract_file("scp.img", "/dev/block/platform/bootdevice/by-name/scp2");
package_extract_file("lk.img", "/dev/block/platform/bootdevice/by-name/lk2");
package_extract_file("tee.img", "/dev/block/platform/bootdevice/by-name/tee2");
if get_storage_type() then 
 assert(package_extract_file("preloader_ufs.img", "/dev/block/mmcblk0boot1"));
else 
 assert(set_emmc_writable("/sys/block/mmcblk0boot1/force_ro"),
        package_extract_file("preloader_emmc.img", "/dev/block/mmcblk0boot1"));
endif;
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "2");
endif;

switch_active("sspm_1", "sspm_2");
switch_active("scp1", "scp2");
switch_active("lk", "lk2");
switch_active("tee1", "tee2");
switch_active("preloader", "preloader2");
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "3");
),
ui_print("alt loder images are already updated");
);
ifelse (
less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "5") ,
(
if less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "4") then

ui_print("start to update main loader image");
package_extract_file("sspm.img", "/dev/block/platform/bootdevice/by-name/sspm_1");
package_extract_file("scp.img", "/dev/block/platform/bootdevice/by-name/scp1");
package_extract_file("lk.img", "/dev/block/platform/bootdevice/by-name/lk");
package_extract_file("tee.img", "/dev/block/platform/bootdevice/by-name/tee1");
if get_storage_type() then 
 assert(package_extract_file("preloader_ufs.img", "/dev/block/mmcblk0boot0"));
else 
 assert(set_emmc_writable("/sys/block/mmcblk0boot0/force_ro"),
        package_extract_file("preloader_emmc.img", "/dev/block/mmcblk0boot0"));
endif;
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "4");
endif;

switch_active("sspm_2", "sspm_1");
switch_active("scp2", "scp1");
switch_active("lk2", "lk");
switch_active("tee2", "tee1");
switch_active("preloader2", "preloader");
),
ui_print("main loader images are already updated");
);
delete("/cache/recovery/last_mtupdate_stage");
package_extract_file("vbmeta_system.img", "/dev/block/platform/bootdevice/by-name/vbmeta_system");
package_extract_file("vbmeta.img", "/dev/block/platform/bootdevice/by-name/vbmeta");
package_extract_file("vbmeta_vendor.img", "/dev/block/platform/bootdevice/by-name/vbmeta_vendor");
post_ota_action();
